Index by author
A
Abdalla, R.N.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Al-Smadi, A.S.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Albers, G.W.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
Ansari, S.A.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Ay, H.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Ayers-Ringler, J.R.
- InterventionalOpen AccessHistologic and Biomolecular Similarities in Healing between Aneurysms and Cutaneous Skin WoundsJ.R. Ayers-Ringler, Z. Khashim, Y.-H. Ding, D.F. Kallmes and R. KadirvelAmerican Journal of Neuroradiology June 2019, 40 (6) 1018-1021; DOI: https://doi.org/10.3174/ajnr.A6046
B
Baek, J.H.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Bansal, N.K.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Barreau, X.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Bathla, G.
- Adult BrainOpen AccessTexture Analysis in Cerebral Gliomas: A Review of the LiteratureN. Soni, S. Priya and G. BathlaAmerican Journal of Neuroradiology June 2019, 40 (6) 928-934; DOI: https://doi.org/10.3174/ajnr.A6075
Bechan, R.S.
- InterventionalYou have accessCurrent Hospital Demographics of Subarachnoid Hemorrhage Based on CT Angiography and 3D Rotational Angiography in a Neurosurgical CenterS.B.T. van Rooij, R.S. Bechan, W.J. van Rooij and M.E. SprengersAmerican Journal of Neuroradiology June 2019, 40 (6) 1013-1017; DOI: https://doi.org/10.3174/ajnr.A6060
Berge, J.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Bezerra, R.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Blanc, R.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Block, K.T.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Boban, J.
- EDITOR'S CHOICEAdult BrainYou have accessSusceptibility-Weighted MR Imaging Hypointense Rim in Progressive Multifocal Leukoencephalopathy: The End Point of Neuroinflammation and a Potential Outcome PredictorM.M Thurnher, J. Boban, A. Rieger and E. GelpiAmerican Journal of Neuroradiology June 2019, 40 (6) 994-1000; DOI: https://doi.org/10.3174/ajnr.A6072
This retrospective study included 18 patients with a definite diagnosis of progressive multifocal leukoencephalopathy. Ten patients were HIV-positive, 3 patients had natalizumab-associated PML, 1 patient had multiple myeloma, 3 patients had a history of lymphoma, and 1 was diagnosed with acute myeloid leukemia. Patients were divided into short- (up to 12 months) and long-term (>12 months) survivors. A total of 93 initial and follow-up MR imaging examinations were reviewed. On SWI, the presence and development of a hypointense rim at the periphery of the PML lesions were noted. A postmortem histologic examination was performed in 2 patients: A rim formed in one, and in one, there was no rim. A total of 73 progressive multifocal leukoencephalopathy lesions were observed. In 13 (72.2%) patients, a well-defined thin, linear, hypointense rim at the periphery of the lesion toward the cortical side was present, while in 5 (27.8%) patients, it was completely absent. All 11 long-term survivors and 2 short-term survivors presented with a prominent SWI-hypointense rim. The thin, uniformly linear, gyriform SWI-hypointense rim in the paralesional U-fibers in patients with definite PML might represent an end point stage of the neuroinflammatory process in long-term survivors.
Bourcier, R.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Bouts, M.J.R.J.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Brinjikji, W.
- LETTERYou have accessVessel Wall Imaging of Unruptured Intracranial Aneurysms: Ready for Prime Time? Not so Fast!V.T. Lehman and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) E26-E29; DOI: https://doi.org/10.3174/ajnr.A6048
- Adult BrainOpen AccessBaseline and Evolutionary Radiologic Features in Sporadic, Hemorrhagic Brain Cavernous MalformationsK.D. Flemming, S. Kumar, G. Lanzino and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) 967-972; DOI: https://doi.org/10.3174/ajnr.A6076
Brugières, L.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
C
Carroll, T.J.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Castellino, R.C.
- LETTERYou have accessReply:N. Kadom, R.C. Castellino and D.S. WolfAmerican Journal of Neuroradiology June 2019, 40 (6) E32; DOI: https://doi.org/10.3174/ajnr.A6062
Chakhoyan, A.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Charitanti-Kouridou, A.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Cheimariotis, G.-A.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Chen, M.M.
- You have accessThe Continued Rise in Professional Use of Social Media at Scientific Meetings: An Analysis of Twitter Use during the ASNR 2018 Annual MeetingG. D'Anna, M.M. Chen, J.L. McCarty, A. Radmanesh and A.L. KotsenasAmerican Journal of Neuroradiology June 2019, 40 (6) 935-937; DOI: https://doi.org/10.3174/ajnr.A6064
Choi, J.W.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Choi, Y.J.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Chryssogonidis, I.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Chung, M.S.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Chutinet, A.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Cloughesy, T.F.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Consoli, A.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Copen, W.A.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
D
D'Anna, G.
- You have accessThe Continued Rise in Professional Use of Social Media at Scientific Meetings: An Analysis of Twitter Use during the ASNR 2018 Annual MeetingG. D'Anna, M.M. Chen, J.L. McCarty, A. Radmanesh and A.L. KotsenasAmerican Journal of Neuroradiology June 2019, 40 (6) 935-937; DOI: https://doi.org/10.3174/ajnr.A6064
Degnan, A.J.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Dejaco, D.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Detraz, L.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Ding, Y.-H.
- InterventionalOpen AccessHistologic and Biomolecular Similarities in Healing between Aneurysms and Cutaneous Skin WoundsJ.R. Ayers-Ringler, Z. Khashim, Y.-H. Ding, D.F. Kallmes and R. KadirvelAmerican Journal of Neuroradiology June 2019, 40 (6) 1018-1021; DOI: https://doi.org/10.3174/ajnr.A6046
Diwan, I.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Dornbos, D.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
E
Eisenmenger, L.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Elgendy, Azza
- You have accessPerspectivesAzza ElgendyAmerican Journal of Neuroradiology June 2019, 40 (6) 927; DOI: https://doi.org/10.3174/ajnr.P0066
Ellingson, B.M.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Elmokadem, A.H.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
F
Fan, G.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Fatterpekar, G.M.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Feng, C.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Fischer, N.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Flemming, K.D.
- Adult BrainOpen AccessBaseline and Evolutionary Radiologic Features in Sporadic, Hemorrhagic Brain Cavernous MalformationsK.D. Flemming, S. Kumar, G. Lanzino and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) 967-972; DOI: https://doi.org/10.3174/ajnr.A6076
Fujii, H.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
Fujita, A.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
G
Gailloud, P.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Garg, P.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Gariel, F.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Gauthier, S.A.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Gelpi, E.
- EDITOR'S CHOICEAdult BrainYou have accessSusceptibility-Weighted MR Imaging Hypointense Rim in Progressive Multifocal Leukoencephalopathy: The End Point of Neuroinflammation and a Potential Outcome PredictorM.M Thurnher, J. Boban, A. Rieger and E. GelpiAmerican Journal of Neuroradiology June 2019, 40 (6) 994-1000; DOI: https://doi.org/10.3174/ajnr.A6072
This retrospective study included 18 patients with a definite diagnosis of progressive multifocal leukoencephalopathy. Ten patients were HIV-positive, 3 patients had natalizumab-associated PML, 1 patient had multiple myeloma, 3 patients had a history of lymphoma, and 1 was diagnosed with acute myeloid leukemia. Patients were divided into short- (up to 12 months) and long-term (>12 months) survivors. A total of 93 initial and follow-up MR imaging examinations were reviewed. On SWI, the presence and development of a hypointense rim at the periphery of the PML lesions were noted. A postmortem histologic examination was performed in 2 patients: A rim formed in one, and in one, there was no rim. A total of 73 progressive multifocal leukoencephalopathy lesions were observed. In 13 (72.2%) patients, a well-defined thin, linear, hypointense rim at the periphery of the lesion toward the cortical side was present, while in 5 (27.8%) patients, it was completely absent. All 11 long-term survivors and 2 short-term survivors presented with a prominent SWI-hypointense rim. The thin, uniformly linear, gyriform SWI-hypointense rim in the paralesional U-fibers in patients with definite PML might represent an end point stage of the neuroinflammatory process in long-term survivors.
Glocker, B.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Gonzalez-Campo, C.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Gory, B.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Grill, J.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
Grisan, E.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Guerrini-Rousseau, L.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
Gulati, D.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
H
Hagiwara, M.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
He, S.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Hedjoudje, A.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Henninger, B.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Hess, C.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Hong, J.Y.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Hurley, M.C.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Hurtado Rúa, S.M.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
I
Iijima, K.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Ikegaya, N.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Iwasaki, M.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
J
Jahromi, B.S.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Jeon, Y.S.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Ji, M.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
K
Kadirvel, R.
- InterventionalOpen AccessHistologic and Biomolecular Similarities in Healing between Aneurysms and Cutaneous Skin WoundsJ.R. Ayers-Ringler, Z. Khashim, Y.-H. Ding, D.F. Kallmes and R. KadirvelAmerican Journal of Neuroradiology June 2019, 40 (6) 1018-1021; DOI: https://doi.org/10.3174/ajnr.A6046
Kadom, N.
- LETTERYou have accessReply:N. Kadom, R.C. Castellino and D.S. WolfAmerican Journal of Neuroradiology June 2019, 40 (6) E32; DOI: https://doi.org/10.3174/ajnr.A6062
Kallmes, D.F.
- InterventionalOpen AccessHistologic and Biomolecular Similarities in Healing between Aneurysms and Cutaneous Skin WoundsJ.R. Ayers-Ringler, Z. Khashim, Y.-H. Ding, D.F. Kallmes and R. KadirvelAmerican Journal of Neuroradiology June 2019, 40 (6) 1018-1021; DOI: https://doi.org/10.3174/ajnr.A6046
Kamnitsas, K.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Kanazawa, H.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
Kaunzner, U.W.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Khashim, Z.
- InterventionalOpen AccessHistologic and Biomolecular Similarities in Healing between Aneurysms and Cutaneous Skin WoundsJ.R. Ayers-Ringler, Z. Khashim, Y.-H. Ding, D.F. Kallmes and R. KadirvelAmerican Journal of Neuroradiology June 2019, 40 (6) 1018-1021; DOI: https://doi.org/10.3174/ajnr.A6046
Kim, E.Y.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Kim, H.J.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Kim, I.S.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Kim, S.O.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Kim, S.U.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Kimberly, W.T.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Kimura, Yuiko
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Kimura, Yukio
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Kotsenas, A.L.
- You have accessThe Continued Rise in Professional Use of Social Media at Scientific Meetings: An Analysis of Twitter Use during the ASNR 2018 Annual MeetingG. D'Anna, M.M. Chen, J.L. McCarty, A. Radmanesh and A.L. KotsenasAmerican Journal of Neuroradiology June 2019, 40 (6) 935-937; DOI: https://doi.org/10.3174/ajnr.A6064
Kovanlikaya, I.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Kumar, S.
- Adult BrainOpen AccessBaseline and Evolutionary Radiologic Features in Sporadic, Hemorrhagic Brain Cavernous MalformationsK.D. Flemming, S. Kumar, G. Lanzino and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) 967-972; DOI: https://doi.org/10.3174/ajnr.A6076
Kyheng, M.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
L
Labreuche, J.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Lai, A.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Lansberg, M.G.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
Lanzino, G.
- Adult BrainOpen AccessBaseline and Evolutionary Radiologic Features in Sporadic, Hemorrhagic Brain Cavernous MalformationsK.D. Flemming, S. Kumar, G. Lanzino and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) 967-972; DOI: https://doi.org/10.3174/ajnr.A6076
Lapergue, B.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Lee, H.J.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Lee, J.H.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Lee, S.B.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Lee, Y.S.
- Head & NeckYou have accessA Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell CarcinomaM.S. Chung, Y.J. Choi, S.O. Kim, Y.S. Lee, J.Y. Hong, J.H. Lee and J.H. BaekAmerican Journal of Neuroradiology June 2019, 40 (6) 1049-1054; DOI: https://doi.org/10.3174/ajnr.A6066
Legius, E.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
Lehman, V.T.
- LETTERYou have accessVessel Wall Imaging of Unruptured Intracranial Aneurysms: Ready for Prime Time? Not so Fast!V.T. Lehman and W. BrinjikjiAmerican Journal of Neuroradiology June 2019, 40 (6) E26-E29; DOI: https://doi.org/10.3174/ajnr.A6048
Li, Y.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Liau, L.M.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Liu, H.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Liu, Q.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Lu, J.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Luo, J.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
M
Marks, M.P.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
Marnat, G.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Matheus, M.G.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
McCarty, J.L.
- You have accessThe Continued Rise in Professional Use of Social Media at Scientific Meetings: An Analysis of Twitter Use during the ASNR 2018 Annual MeetingG. D'Anna, M.M. Chen, J.L. McCarty, A. Radmanesh and A.L. KotsenasAmerican Journal of Neuroradiology June 2019, 40 (6) 935-937; DOI: https://doi.org/10.3174/ajnr.A6064
McIntosh, E.C.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Menegon, P.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Mlynash, M.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
Mocking, S.J.T.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Mogen, J.L.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Moghekar, A.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Morimoto, E.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Mukherjee, S.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
N
Nghiemphu, P.L.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Nguyen, N.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Nguyen, T.D.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Nimjee, S.M.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
O
Oitani, Y.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
P
Pandya, S.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Park, J.J.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Park, M.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
Parsons, M.S.
- Head & NeckYou have accessEvaluating the Utility of a Postprocessing Algorithm for MRI Evaluation of Optic NeuritisL. Stunkel, A. Sharma, M.S. Parsons, A. Salter and G.P. Van StavernAmerican Journal of Neuroradiology June 2019, 40 (6) 1043-1048; DOI: https://doi.org/10.3174/ajnr.A6057
Patel, D.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
Patel, S.H.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Patrie, J.T.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Piveteau, A.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Plaikner, M.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Pope, W.B.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Potts, M.B.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Powers, C.J.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
Priya, S.
- Adult BrainOpen AccessTexture Analysis in Cerebral Gliomas: A Review of the LiteratureN. Soni, S. Priya and G. BathlaAmerican Journal of Neuroradiology June 2019, 40 (6) 928-934; DOI: https://doi.org/10.3174/ajnr.A6075
R
Radmanesh, A.
- You have accessThe Continued Rise in Professional Use of Social Media at Scientific Meetings: An Analysis of Twitter Use during the ASNR 2018 Annual MeetingG. D'Anna, M.M. Chen, J.L. McCarty, A. Radmanesh and A.L. KotsenasAmerican Journal of Neuroradiology June 2019, 40 (6) 935-937; DOI: https://doi.org/10.3174/ajnr.A6064
Rafailidis, D.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Rafailidis, V.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Raymond, C.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Riechelmann, H.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Rieger, A.
- EDITOR'S CHOICEAdult BrainYou have accessSusceptibility-Weighted MR Imaging Hypointense Rim in Progressive Multifocal Leukoencephalopathy: The End Point of Neuroinflammation and a Potential Outcome PredictorM.M Thurnher, J. Boban, A. Rieger and E. GelpiAmerican Journal of Neuroradiology June 2019, 40 (6) 994-1000; DOI: https://doi.org/10.3174/ajnr.A6072
This retrospective study included 18 patients with a definite diagnosis of progressive multifocal leukoencephalopathy. Ten patients were HIV-positive, 3 patients had natalizumab-associated PML, 1 patient had multiple myeloma, 3 patients had a history of lymphoma, and 1 was diagnosed with acute myeloid leukemia. Patients were divided into short- (up to 12 months) and long-term (>12 months) survivors. A total of 93 initial and follow-up MR imaging examinations were reviewed. On SWI, the presence and development of a hypointense rim at the periphery of the PML lesions were noted. A postmortem histologic examination was performed in 2 patients: A rim formed in one, and in one, there was no rim. A total of 73 progressive multifocal leukoencephalopathy lesions were observed. In 13 (72.2%) patients, a well-defined thin, linear, hypointense rim at the periphery of the lesion toward the cortical side was present, while in 5 (27.8%) patients, it was completely absent. All 11 long-term survivors and 2 short-term survivors presented with a prominent SWI-hypointense rim. The thin, uniformly linear, gyriform SWI-hypointense rim in the paralesional U-fibers in patients with definite PML might represent an end point stage of the neuroinflammatory process in long-term survivors.
Rieter, W.J.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
Roh, H.G.
- EDITOR'S CHOICEAdult BrainOpen AccessA Novel Collateral Imaging Method Derived from Time-Resolved Dynamic Contrast-Enhanced MR Angiography in Acute Ischemic Stroke: A Pilot StudyH.G. Roh, E.Y. Kim, I.S. Kim, H.J. Lee, J.J. Park, S.B. Lee, J.W. Choi, Y.S. Jeon, M. Park, S.U. Kim and H.J. KimAmerican Journal of Neuroradiology June 2019, 40 (6) 946-953; DOI: https://doi.org/10.3174/ajnr.A6068
The purpose of this study was to introduce a multiphase MRA collateral map derived from time-resolved dynamic contrast-enhanced MRA and to verify the value of the multiphase MRA collateral map in acute ischemic stroke by comparing it with the multiphase collateral imaging method (MRP collateral map) derived from dynamic susceptibility contrast-enhanced MR perfusion. The authors generated collateral maps using dynamic signals from dynamic contrast-enhanced MRA and DSC-MRP in 67 patients using a Matlab-based in-house program and graded the collateral scores of the multiphase MRA collateral map and the MRP collateral map independently. Interobserver reliabilities and intermethod agreement between both collateral maps for collateral grading were tested. The interobserver reliabilities forcollateral grading using multiphase MRA or MRP collateral maps were excellent. They conclude that the dynamic signals of dynamic contrast-enhanced MRA can generate multiphasecollateral images and show the possibility of the multiphase MRA collateral map as a useful collateral imaging method in acute ischemic stroke.
S
Saito, Y.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Sakai, O.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
Salamon, N.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Saloner, D.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Salter, A.
- Head & NeckYou have accessEvaluating the Utility of a Postprocessing Algorithm for MRI Evaluation of Optic NeuritisL. Stunkel, A. Sharma, M.S. Parsons, A. Salter and G.P. Van StavernAmerican Journal of Neuroradiology June 2019, 40 (6) 1043-1048; DOI: https://doi.org/10.3174/ajnr.A6057
San Millán, D.
- Adult BrainYou have accessThe Occipital Emissary Vein: A Possible Marker for Pseudotumor CerebriA. Hedjoudje, A. Piveteau, C. Gonzalez-Campo, A. Moghekar, P. Gailloud and D. San MillánAmerican Journal of Neuroradiology June 2019, 40 (6) 973-978; DOI: https://doi.org/10.3174/ajnr.A6061
Sasaki, M.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Sato, N.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Schaefer, P.W.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Schartinger, V.H.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Schmutzhard, J.
- FELLOWS' JOURNAL CLUBHead & NeckYou have accessReadout-Segmented Echo-Planar DWI for the Detection of Cholesteatomas: Correlation with Surgical ValidationN. Fischer, V.H. Schartinger, D. Dejaco, J. Schmutzhard, H. Riechelmann, M. Plaikner and B. HenningerAmerican Journal of Neuroradiology June 2019, 40 (6) 1055-1059; DOI: https://doi.org/10.3174/ajnr.A6079
Readout-segmented echo-planar (RESOLVE)-DWI is a new alternative technique for obtaining DWI with high quality, delivering sharp images at high spatial resolution and reduced slice thickness. Fifty patients with chronic otitis media who underwent MR imaging before an operation of the middle ear were included. The MR imaging protocol consisted of axial and coronal readout-segmented echo-planar DWI with b-values of 0 and 1000 s/mm2 and 3-mm slice thickness. The readout segmented echo-planar diffusion-weighted images were fused with standard T2-weighted sequences for better anatomic assignment. Readout-segmented echo-planar DWI detected 22 of the 25 cases of surgically proved cholesteatoma. It has an accuracy of 92%, a sensitivity of 88%, a specificity of 96%, a positive predictive value of 96%, and a negativepredictive value of 89%. Readout-segmented echo-planar DWI is a promising and reliable MR imaging sequence for the detection and exclusion of cholesteatoma.
Sgreccia, A.
- FELLOWS' JOURNAL CLUBInterventionalYou have accessFirst-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of SuccessG. Marnat, X. Barreau, L. Detraz, R. Bourcier, B. Gory, A. Sgreccia, F. Gariel, J. Berge, P. Menegon, M. Kyheng, J. Labreuche, A. Consoli, R. Blanc and B. Lapergue on behalf of the ETIS InvestigatorsAmerican Journal of Neuroradiology June 2019, 40 (6) 1006-1012; DOI: https://doi.org/10.3174/ajnr.A6074
The authors performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1%. Complete reperfusion (modified TICI 3) was obtained in 41.2%. A first-pass effect was achieved in 24.2%. A rescue stent retriever approach was required in 29.7%. The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.
Shaibani, A.
- Adult BrainOpen AccessDiagnostic Accuracy of High-Resolution Black-Blood MRI in the Evaluation of Intracranial Large-Vessel Arterial OcclusionsA.S. Al-Smadi, R.N. Abdalla, A.H. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi, T.J. Carroll and S.A. AnsariAmerican Journal of Neuroradiology June 2019, 40 (6) 954-959; DOI: https://doi.org/10.3174/ajnr.A6065
Sharma, A.
- Head & NeckYou have accessEvaluating the Utility of a Postprocessing Algorithm for MRI Evaluation of Optic NeuritisL. Stunkel, A. Sharma, M.S. Parsons, A. Salter and G.P. Van StavernAmerican Journal of Neuroradiology June 2019, 40 (6) 1043-1048; DOI: https://doi.org/10.3174/ajnr.A6057
Shigemoto, Y.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Shioya, A.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Sidhu, P.S.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Singhal, A.B.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Soni, N.
- Adult BrainOpen AccessTexture Analysis in Cerebral Gliomas: A Review of the LiteratureN. Soni, S. Priya and G. BathlaAmerican Journal of Neuroradiology June 2019, 40 (6) 928-934; DOI: https://doi.org/10.3174/ajnr.A6075
Sorensen, A.G.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Spampinato, M.V.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
Spincemaille, P.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Sprengers, M.E.
- InterventionalYou have accessCurrent Hospital Demographics of Subarachnoid Hemorrhage Based on CT Angiography and 3D Rotational Angiography in a Neurosurgical CenterS.B.T. van Rooij, R.S. Bechan, W.J. van Rooij and M.E. SprengersAmerican Journal of Neuroradiology June 2019, 40 (6) 1013-1017; DOI: https://doi.org/10.3174/ajnr.A6060
Stalcup, S.T.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
Stunkel, L.
- Head & NeckYou have accessEvaluating the Utility of a Postprocessing Algorithm for MRI Evaluation of Optic NeuritisL. Stunkel, A. Sharma, M.S. Parsons, A. Salter and G.P. Van StavernAmerican Journal of Neuroradiology June 2019, 40 (6) 1043-1048; DOI: https://doi.org/10.3174/ajnr.A6057
Suerink, M.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
Sugimoto, H.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
Sung, E.
- Head & NeckYou have accessLocalization of Parotid Gland Tumors in Relation to the Intraparotid Facial Nerve on 3D Double-Echo Steady-State with Water Excitation SequenceH. Fujii, A. Fujita, H. Kanazawa, E. Sung, O. Sakai and H. SugimotoAmerican Journal of Neuroradiology June 2019, 40 (6) 1037-1042; DOI: https://doi.org/10.3174/ajnr.A6078
Suzuki, F.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
T
Takayama, Y.
- PediatricsOpen AccessRadiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating SubtypesYukio Kimura, A. Shioya, Y. Saito, Y. Oitani, Y. Shigemoto, E. Morimoto, F. Suzuki, N. Ikegaya, Yuiko Kimura, K. Iijima, Y. Takayama, M. Iwasaki, M. Sasaki and N. SatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1060-1066; DOI: https://doi.org/10.3174/ajnr.A6067
Tegos, T.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
Thurnher, M.M
- EDITOR'S CHOICEAdult BrainYou have accessSusceptibility-Weighted MR Imaging Hypointense Rim in Progressive Multifocal Leukoencephalopathy: The End Point of Neuroinflammation and a Potential Outcome PredictorM.M Thurnher, J. Boban, A. Rieger and E. GelpiAmerican Journal of Neuroradiology June 2019, 40 (6) 994-1000; DOI: https://doi.org/10.3174/ajnr.A6072
This retrospective study included 18 patients with a definite diagnosis of progressive multifocal leukoencephalopathy. Ten patients were HIV-positive, 3 patients had natalizumab-associated PML, 1 patient had multiple myeloma, 3 patients had a history of lymphoma, and 1 was diagnosed with acute myeloid leukemia. Patients were divided into short- (up to 12 months) and long-term (>12 months) survivors. A total of 93 initial and follow-up MR imaging examinations were reviewed. On SWI, the presence and development of a hypointense rim at the periphery of the PML lesions were noted. A postmortem histologic examination was performed in 2 patients: A rim formed in one, and in one, there was no rim. A total of 73 progressive multifocal leukoencephalopathy lesions were observed. In 13 (72.2%) patients, a well-defined thin, linear, hypointense rim at the periphery of the lesion toward the cortical side was present, while in 5 (27.8%) patients, it was completely absent. All 11 long-term survivors and 2 short-term survivors presented with a prominent SWI-hypointense rim. The thin, uniformly linear, gyriform SWI-hypointense rim in the paralesional U-fibers in patients with definite PML might represent an end point stage of the neuroinflammatory process in long-term survivors.
Tian, B.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Tipnis, S.V.
- PediatricsYou have accessRadiation Dose and Image Quality in Pediatric Neck CTS.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus and M.V. SpampinatoAmerican Journal of Neuroradiology June 2019, 40 (6) 1067-1073; DOI: https://doi.org/10.3174/ajnr.A6073
Torbey, M.
- InterventionalOpen AccessThrombectomy with Conscious Sedation Compared with General Anesthesia: A DEFUSE 3 AnalysisC.J. Powers, D. Dornbos, M. Mlynash, D. Gulati, M. Torbey, S.M. Nimjee, M.G. Lansberg, G.W. Albers and M.P. MarksAmerican Journal of Neuroradiology June 2019, 40 (6) 1001-1005; DOI: https://doi.org/10.3174/ajnr.A6059
V
van Rooij, S.B.T.
- InterventionalYou have accessCurrent Hospital Demographics of Subarachnoid Hemorrhage Based on CT Angiography and 3D Rotational Angiography in a Neurosurgical CenterS.B.T. van Rooij, R.S. Bechan, W.J. van Rooij and M.E. SprengersAmerican Journal of Neuroradiology June 2019, 40 (6) 1013-1017; DOI: https://doi.org/10.3174/ajnr.A6060
van Rooij, W.J.
- InterventionalYou have accessCurrent Hospital Demographics of Subarachnoid Hemorrhage Based on CT Angiography and 3D Rotational Angiography in a Neurosurgical CenterS.B.T. van Rooij, R.S. Bechan, W.J. van Rooij and M.E. SprengersAmerican Journal of Neuroradiology June 2019, 40 (6) 1013-1017; DOI: https://doi.org/10.3174/ajnr.A6060
Van Stavern, G.P.
- Head & NeckYou have accessEvaluating the Utility of a Postprocessing Algorithm for MRI Evaluation of Optic NeuritisL. Stunkel, A. Sharma, M.S. Parsons, A. Salter and G.P. Van StavernAmerican Journal of Neuroradiology June 2019, 40 (6) 1043-1048; DOI: https://doi.org/10.3174/ajnr.A6057
W
Wang, D.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Wang, X.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.
Wang, Y.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Wang, Y.-L.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
Wells, W.M.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
Wimmer, K.
- LETTERYou have accessPatients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis?L. Guerrini-Rousseau, M. Suerink, J. Grill, E. Legius, K. Wimmer and L. BrugièresAmerican Journal of Neuroradiology June 2019, 40 (6) E30-E31; DOI: https://doi.org/10.3174/ajnr.A6058
Winzeck, S.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Wolf, D.S.
- LETTERYou have accessReply:N. Kadom, R.C. Castellino and D.S. WolfAmerican Journal of Neuroradiology June 2019, 40 (6) E32; DOI: https://doi.org/10.3174/ajnr.A6062
Wu, O.
- EDITOR'S CHOICEAdult BrainOpen AccessEnsemble of Convolutional Neural Networks Improves Automated Segmentation of Acute Ischemic Lesions Using Multiparametric Diffusion-Weighted MRIS. Winzeck, S.J.T. Mocking, R. Bezerra, M.J.R.J. Bouts, E.C. McIntosh, I. Diwan, P. Garg, A. Chutinet, W.T. Kimberly, W.A. Copen, P.W. Schaefer, H. Ay, A.B. Singhal, K. Kamnitsas, B. Glocker, A.G. Sorensen and O. WuAmerican Journal of Neuroradiology June 2019, 40 (6) 938-945; DOI: https://doi.org/10.3174/ajnr.A6077
Convolutional neural networks were trained on combinations of DWI, ADC, and low b-value-weighted images from 116 subjects. The performances of the networks (measured by the Dice score, sensitivity, and precision) were compared with one another and with ensembles of 5 networks. An ensemble of convolutional neural networks trained on DWI, ADC, and low b-value-weighted images produced the most accurate acute infarct segmentation over individual networks. Automated volumes correlated with manually measured volumes for the independent cohort.
Wu, Z.
- SpineOpen AccessDeep Learning–Based Automatic Segmentation of Lumbosacral Nerves on CT for Spinal Intervention: A Translational StudyG. Fan, H. Liu, Z. Wu, Y. Li, C. Feng, D. Wang, J. Luo, W.M. Wells and S. HeAmerican Journal of Neuroradiology June 2019, 40 (6) 1074-1081; DOI: https://doi.org/10.3174/ajnr.A6070
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Xerras, C.
- Extracranial VascularYou have accessAn Ultrasonographic Multiparametric Carotid Plaque Risk Index Associated with Cerebrovascular Symptomatology: A Study Comparing Color Doppler Imaging and Contrast-Enhanced UltrasonographyV. Rafailidis, I. Chryssogonidis, C. Xerras, E. Grisan, G.-A. Cheimariotis, T. Tegos, D. Rafailidis, P.S. Sidhu and A. Charitanti-KouridouAmerican Journal of Neuroradiology June 2019, 40 (6) 1022-1028; DOI: https://doi.org/10.3174/ajnr.A6056
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Yao, J.
- Adult BrainOpen AccessAssociation between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3TY.-L. Wang, J. Yao, A. Chakhoyan, C. Raymond, N. Salamon, L.M. Liau, P.L. Nghiemphu, A. Lai, W.B. Pope, N. Nguyen, M. Ji, T.F. Cloughesy and B.M. EllingsonAmerican Journal of Neuroradiology June 2019, 40 (6) 979-986; DOI: https://doi.org/10.3174/ajnr.A6063
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Zan, E.
- Head & NeckYou have accessDynamic Contrast-Enhanced MRI to Differentiate Parotid Neoplasms Using Golden-Angle Radial Sparse Parallel ImagingJ.L. Mogen, K.T. Block, N.K. Bansal, J.T. Patrie, S. Mukherjee, E. Zan, M. Hagiwara, G.M. Fatterpekar and S.H. PatelAmerican Journal of Neuroradiology June 2019, 40 (6) 1029-1036; DOI: https://doi.org/10.3174/ajnr.A6055
Zhang, S.
- Adult BrainOpen AccessQuantitative Susceptibility Mapping of Time-Dependent Susceptibility Changes in Multiple Sclerosis LesionsS. Zhang, T.D. Nguyen, S.M. Hurtado Rúa, U.W. Kaunzner, S. Pandya, I. Kovanlikaya, P. Spincemaille, Y. Wang and S.A. GauthierAmerican Journal of Neuroradiology June 2019, 40 (6) 987-993; DOI: https://doi.org/10.3174/ajnr.A6071
Zhu, C.
- FELLOWS' JOURNAL CLUBAdult BrainOpen AccessSurveillance of Unruptured Intracranial Saccular Aneurysms Using Noncontrast 3D-Black-Blood MRI: Comparison of 3D-TOF and Contrast-Enhanced MRA with 3D-DSAC. Zhu, X. Wang, L. Eisenmenger, B. Tian, Q. Liu, A.J. Degnan, C. Hess, D. Saloner and J. LuAmerican Journal of Neuroradiology June 2019, 40 (6) 960-966; DOI: https://doi.org/10.3174/ajnr.A6080
Sixty-four patients with 68 saccular unruptured intracranial aneurysms were recruited. Patients underwent 3T MR imaging with 3D-TOF-MRA, 3D black-blood MR imaging, and contrast-enhanced MRA, and they underwent 3D rotational angiography within 2 weeks. The neck, width, and height of the unruptured intracranial aneurysms were measured by 2 radiologists independently on 3D rotational angiography and 3 MR imaging sequences. 3D black-blood MR imaging demonstrates the best agreement with DSA, with the smallest limits of agreement and measurement error. 3D-TOF-MRA had the largest limits of agreement and measurement error. The authors conclude that 3D black-blood MR imaging achieves better accuracy for aneurysm size measurements compared with 3D-TOF, using 3D rotational angiography as a criterion standard.