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Table of Contents

May 01, 2019; Volume 40,Issue 5

Perspectives

  • You have access
    Perspectives
    Marie T. Krüger and Peter C. Reinacher
    American Journal of Neuroradiology May 2019, 40 (5) 757; DOI: https://doi.org/10.3174/ajnr.P0065

Review Article

  • Adult Brain
    Open Access
    Non-Contrast-Enhancing Tumor: A New Frontier in Glioblastoma Research
    A. Lasocki and F. Gaillard
    American Journal of Neuroradiology May 2019, 40 (5) 758-765; DOI: https://doi.org/10.3174/ajnr.A6025

Practice Vignette

  • You have access
    Chimeric Antigen Receptor T-Cell Therapy: What the Neuroradiologist Needs to Know
    H.A. Valand, F. Huda and R.K. Tu
    American Journal of Neuroradiology May 2019, 40 (5) 766-768; DOI: https://doi.org/10.3174/ajnr.A6042

General Contents

  • EDITOR'S CHOICEAdult Brain
    Open Access
    Predicting Motor Outcome in Acute Intracerebral Hemorrhage
    J. Puig, G. Blasco, M. Terceño, P. Daunis-i-Estadella, G. Schlaug, M. Hernandez-Perez, V. Cuba, G. Carbó, J. Serena, M. Essig, C.R. Figley, K. Nael, C. Leiva-Salinas, S. Pedraza and Y. Silva
    American Journal of Neuroradiology May 2019, 40 (5) 769-775; DOI: https://doi.org/10.3174/ajnr.A6038

    The authors prospectively studied patients with motor deficits secondary to primary intracerebral hemorrhage within the first 12 hours of symptom onset. Patients underwent multimodal MR imaging including DTI. Intracerebral hemorrhage, perihematomal edema location and volume, and corticospinal tract involvement were assessed. The corticospinal tract was considered affected when the tractogram passed through the intracerebral hemorrhage and/or the perihematomal edema. The authors calculated affected corticospinal tract-to-unaffected corticospinal tract ratios for fractional anisotropy, mean diffusivity, and axial and radial diffusivities. Significant independent predictors of motor outcome were NIHSS and modified NIHSS at admission, posterior limb of the internal capsule involvement by intracerebral hemorrhage at admission, intracerebral hemorrhage volume at admission, 72-hour NIHSS, and 72-hour modified NIHSS. The sensitivity, specificity, and positive and negative predictive values for poor motor outcome at 3 months by a combined modified NIHSS of >6 and posterior limb of the internal capsule involvement in the first 12 hours from symptom onset were 84%, 79%, 65%, and 92%, respectively.

  • Adult Brain
    You have access
    The Central Vein Sign in Radiologically Isolated Syndrome
    S. Suthiphosuwan, P. Sati, M. Guenette, X. Montalban, D.S. Reich, A. Bharatha and J. Oh
    American Journal of Neuroradiology May 2019, 40 (5) 776-783; DOI: https://doi.org/10.3174/ajnr.A6045
  • Adult Brain
    You have access
    Increased Water Content in Periventricular Caps in Patients without Acute Hydrocephalus
    T. Sichtermann, J.K. Furtmann, S. Dekeyzer, G. Gilmour, A.M. Oros-Peusquens, J.P. Bach, M. Wiesmann, N.J. Shah and O. Nikoubashman
    American Journal of Neuroradiology May 2019, 40 (5) 784-787; DOI: https://doi.org/10.3174/ajnr.A6033
  • Adult Brain
    You have access
    GJA1 Variants Cause Spastic Paraplegia Associated with Cerebral Hypomyelination
    L. Saint-Val, T. Courtin, P. Charles, C. Verny, M. Catala, R. Schiffmann, O. Boespflug-Tanguy and F. Mochel
    American Journal of Neuroradiology May 2019, 40 (5) 788-791; DOI: https://doi.org/10.3174/ajnr.A6036
  • Adult Brain
    You have access
    Susceptibility-Weighted Angiography for the Follow-Up of Brain Arteriovenous Malformations Treated with Stereotactic Radiosurgery
    S. Finitsis, R. Anxionnat, B. Gory, S. Planel, L. Liao and S. Bracard
    American Journal of Neuroradiology May 2019, 40 (5) 792-797; DOI: https://doi.org/10.3174/ajnr.A6053
  • Adult Brain
    You have access
    Image Processing to Improve Detection of Mesial Temporal Sclerosis in Adults
    F. Dahi, M.S. Parsons, H.L.P. Orlowski, A. Salter, S. Dahiya and A. Sharma
    American Journal of Neuroradiology May 2019, 40 (5) 798-801; DOI: https://doi.org/10.3174/ajnr.A6022
  • Interventional
    Open Access
    Visualization of Aneurysmal Neck and Dome after Coiling with 3D Multifusion Imaging of Silent MRA and FSE-MR Cisternography
    T. Satoh, T. Hishikawa, M. Hiramatsu, K. Sugiu and I. Date
    American Journal of Neuroradiology May 2019, 40 (5) 802-807; DOI: https://doi.org/10.3174/ajnr.A6026
  • EDITOR'S CHOICEInterventional
    You have access
    Usefulness of Silent MR Angiography for Intracranial Aneurysms Treated with a Flow-Diverter Device
    H. Oishi, T. Fujii, M. Suzuki, N. Takano, K. Teranishi, K. Yatomi, T. Kitamura, M. Yamamoto, S. Aoki and H. Arai
    American Journal of Neuroradiology May 2019, 40 (5) 808-814; DOI: https://doi.org/10.3174/ajnr.A6047

    Silent MRA is a procedure using an ultrashort TE and arterial spin-labeling techniques, which efficiently visualizes the status after the treatment of intracranial aneurysms. In Silent MRA, the 3D image is reconstructed by subtracting the control image from the image obtained by the labeling pulse. Seventy-eight large, unruptured internal carotid aneurysms in 78 patients were the subjects of this study. After 6 months of treatment, they underwent follow-up digital subtraction angiography, Silent MRA, and TOF-MRA, performed simultaneously. The authors found Silent MRA is superior for visualizing blood flow images inside flow-diverter devices compared with TOF-MRA. Furthermore, Silent MRA enables the assessment of aneurysmal embolization status. Silent MRA is useful for assessing the status of large and giant unruptured internal carotid aneurysms after flow-diverter placement.

  • Interventional
    You have access
    Pointwise Encoding Time Reduction with Radial Acquisition with Subtraction-Based MRA during the Follow-Up of Stent-Assisted Coil Embolization of Anterior Circulation Aneurysms
    Y.J. Heo, H.W. Jeong, J.W. Baek, S.T. Kim, Y.G. Jeong, J.Y. Lee and S.-C. Jin
    American Journal of Neuroradiology May 2019, 40 (5) 815-819; DOI: https://doi.org/10.3174/ajnr.A6035
  • Interventional
    You have access
    Treatment of Wide-Neck Intracranial Aneurysms with the Woven EndoBridge Device Associated with Stenting: A Single-Center Experience
    F. Cagnazzo, R. Ahmed, C. Dargazanli, P.-H. Lefevre, G. Gascou, I. Derraz, S.A. Kalmanovich, C. Riquelme, A. Bonafe and V. Costalat
    American Journal of Neuroradiology May 2019, 40 (5) 820-826; DOI: https://doi.org/10.3174/ajnr.A6032
  • Interventional
    You have access
    Image Quality of Low-Dose Cerebral Angiography and Effectiveness of Clinical Implementation on Diagnostic and Neurointerventional Procedures for Intracranial Aneurysms
    J. Choi, B. Kim, Y. Choi, N.Y. Shin, J. Jang, H.S. Choi, S.L. Jung and K.J. Ahn
    American Journal of Neuroradiology May 2019, 40 (5) 827-833; DOI: https://doi.org/10.3174/ajnr.A6029
  • Interventional
    Open Access
    Differences in Cerebral Aneurysm Rupture Rate According to Arterial Anatomies Depend on the Hemodynamic Environment
    S. Fukuda, Y. Shimogonya and N. Yonemoto on behalf of the CFD ABO Study Group
    American Journal of Neuroradiology May 2019, 40 (5) 834-839; DOI: https://doi.org/10.3174/ajnr.A6030
  • Interventional
    You have access
    Impact of Balloon-Guiding Catheter Location on Recanalization in Patients with Acute Stroke Treated by Mechanical Thrombectomy
    D.E. Jeong, J.W. Kim, B.M. Kim, W. Hwang and D.J. Kim
    American Journal of Neuroradiology May 2019, 40 (5) 840-844; DOI: https://doi.org/10.3174/ajnr.A6031
  • Interventional
    You have access
    Angiographic and Clinical Features of Noninvoluting Congenital Hemangiomas
    A. Patel, R. De Leacy and A. Berenstein
    American Journal of Neuroradiology May 2019, 40 (5) 845-848; DOI: https://doi.org/10.3174/ajnr.A6044
  • Head & Neck
    Open Access
    Reduced Jet Velocity in Venous Flow after CSF Drainage: Assessing Hemodynamic Causes of Pulsatile Tinnitus
    H. Haraldsson, J.R. Leach, E.I. Kao, A.G. Wright, S.G. Ammanuel, R.S. Khangura, M.K. Ballweber, C.T. Chin, V.N. Shah, K. Meisel, D.A. Saloner and M.R. Amans
    American Journal of Neuroradiology May 2019, 40 (5) 849-854; DOI: https://doi.org/10.3174/ajnr.A6043
  • Head & Neck
    You have access
    The Black Turbinate Sign, A Potential Diagnostic Pitfall: Evaluation of the Normal Enhancement Patterns of the Nasal Turbinates
    Q. Han and E.J. Escott
    American Journal of Neuroradiology May 2019, 40 (5) 855-861; DOI: https://doi.org/10.3174/ajnr.A6037
  • Pediatrics
    You have access
    Neuroimaging Findings in Moebius Sequence
    D.A. Herrera, N.O. Ruge, M.M. Florez, S.A. Vargas, M. Ochoa-Escudero and M. Castillo
    American Journal of Neuroradiology May 2019, 40 (5) 862-865; DOI: https://doi.org/10.3174/ajnr.A6028
  • Pediatrics
    You have access
    Comparison of Iterative Model Reconstruction versus Filtered Back-Projection in Pediatric Emergency Head CT: Dose, Image Quality, and Image-Reconstruction Times
    R.N. Southard, D.M.E. Bardo, M.H. Temkit, M.A. Thorkelson, R.A. Augustyn and C.A. Martinot
    American Journal of Neuroradiology May 2019, 40 (5) 866-871; DOI: https://doi.org/10.3174/ajnr.A6034
  • FELLOWS' JOURNAL CLUBPediatrics
    You have access
    Pediatric Atypical Teratoid/Rhabdoid Tumors of the Brain: Identification of Metabolic Subgroups Using In Vivo 1H-MR Spectroscopy
    B. Tamrazi, S. Venneti, A. Margol, D. Hawes, S.Y. Cen, M. Nelson, A. Judkins, J. Biegel and S. Blüml
    American Journal of Neuroradiology May 2019, 40 (5) 872-877; DOI: https://doi.org/10.3174/ajnr.A6024

    Twenty patients with confirmed atypical teratoid/rhabdoid tumors who underwent MR spectroscopy were included in this study. In vivo metabolite levels of atypical teratoid/rhabdoid tumors were compared with molecular subtypes assessed by achaete-scute homolog 1 expression. In vivo creatine concentrations were higher in tumors that demonstrated achaete-scute homolog 1 expression compared with those without achaete-scute homolog 1 expression. Additionally, levels of myo-inositol were significantly different, whereas lipids approached significance in these 2 cohorts. Higher brain-specific creatine kinase levels were observed in the cohort with achaete-scute homolog 1 expression.

  • FELLOWS' JOURNAL CLUBPediatrics
    Open Access
    Intravoxel Incoherent Motion MR Imaging of Pediatric Intracranial Tumors: Correlation with Histology and Diagnostic Utility
    K. Kikuchi, A. Hiwatashi, O. Togao, K. Yamashita, R. Kamei, D. Momosaka, N. Hata, K. Iihara, S.O. Suzuki, T. Iwaki and H. Honda
    American Journal of Neuroradiology May 2019, 40 (5) 878-884; DOI: https://doi.org/10.3174/ajnr.A6052

    Between April 2013 and September 2015, seventeen children with intracranial tumors were included in this retrospective study. Intravoxel incoherent motion parameters were fitted using 13 b-values for a biexponential model. The perfusion-free diffusion coefficient, pseudodiffusion coefficient, and perfusion fraction were measured in high- and low-grade tumors. The authors found significant correlations between the histology and IVIM parameters of different pediatric intracranial tumors. These results suggest that IVIM imaging reflects cell density and vascularity across different types of pediatric brain tumors. They also demonstrated that both the diffusion and perfusion parameters measured on IVIM imaging are useful for grading intracranial neuroectodermal tumors in pediatric patients.

  • Pediatrics
    You have access
    Brain and CSF Volumes in Fetuses and Neonates with Antenatal Diagnosis of Critical Congenital Heart Disease: A Longitudinal MRI Study
    N.H.P. Claessens, N. Khalili, I. Isgum, H. ter Heide, T.J. Steenhuis, E. Turk, N.J.G. Jansen, L.S. de Vries, J.M.P.J. Breur, R. de Heus and M.J.N.L. Benders
    American Journal of Neuroradiology May 2019, 40 (5) 885-891; DOI: https://doi.org/10.3174/ajnr.A6021
  • FELLOWS' JOURNAL CLUBPediatrics
    You have access
    Focal Cortical Dysplasia and Refractory Epilepsy: Role of Multimodality Imaging and Outcome of Surgery
    S. Jayalakshmi, S.K. Nanda, S. Vooturi, R. Vadapalli, P. Sudhakar, S. Madigubba and M. Panigrahi
    American Journal of Neuroradiology May 2019, 40 (5) 892-898; DOI: https://doi.org/10.3174/ajnr.A6041

    The authors performed a retrospective analysis of data from 188 consecutive patients with focal cortical dysplasia and refractory epilepsy with at least 2 years of postsurgery follow-up. Predictors of seizure freedom and the sensitivity of neuroimaging modalities were analyzed. MR imaging showed clear-cut FCD in 136 (72.3%) patients. Interictal FDG-PET showed focal hypo-/hypermetabolism in 144 (76.6%); in 110 patients in whom ictal SPECT was performed, focal hyperperfusion was noted in 77 (70.3%). Focal resection was the most common surgery performed in 112 (59.6%) patients. Histopathology revealed type I FCD in 102 (54.3%) patients. At last follow-up, 124 (66.0%) were seizure-free. Complete resection of FCD and type II FCD were predictors of seizure freedom. Localization of FCD on either MR imaging or PET or ictal SPECT had the highest sensitivity for seizure freedom at 97.5%. They conclude that during presurgical multimodality evaluation, localization of the extent of the epileptogenic zone in at least 2 imaging modalities helps achieve seizure freedom in about two-thirds of patients with refractory epilepsy due to FCD. FDG-PET is the most sensitive imaging modality for seizure freedom, especially in patients with type I FCD.

  • Pediatrics
    You have access
    Persisting Embryonal Infundibular Recess in Morning Glory Syndrome: Clinical Report of a Novel Association
    A. D'Amico, L. Ugga, R. Cuocolo, M. Cirillo, A. Grandone and R. Conforti
    American Journal of Neuroradiology May 2019, 40 (5) 899-902; DOI: https://doi.org/10.3174/ajnr.A6005
  • Pediatrics
    You have access
    Oculodentodigital Dysplasia: A Hypomyelinating Leukodystrophy with a Characteristic MRI Pattern of Brain Stem Involvement
    I. Harting, S. Karch, U. Moog, A. Seitz, P.J.W. Pouwels and N.I. Wolf
    American Journal of Neuroradiology May 2019, 40 (5) 903-907; DOI: https://doi.org/10.3174/ajnr.A6051
  • EDITOR'S CHOICESpine
    Open Access
    Lumbar Spinal Stenosis Severity by CT or MRI Does Not Predict Response to Epidural Corticosteroid versus Lidocaine Injections
    F.A. Perez, S. Quinet, J.G. Jarvik, Q.T. Nguyen, E. Aghayev, D. Jitjai, W.D. Hwang, E.R. Jarvik, S.S. Nedeljkovic, A.L. Avins, J.M. Schwalb, F.E. Diehn, C.J. Standaert, D.R. Nerenz, T. Annaswamy, Z. Bauer, D. Haynor, P.J. Heagerty and J.L. Friedly
    American Journal of Neuroradiology May 2019, 40 (5) 908-915; DOI: https://doi.org/10.3174/ajnr.A6050

    In this secondary analysis of the CT and MR imaging studies of the prospective, double-blind Lumbar Epidural Steroid Injections for Spinal Stenosis (LESS) trial participants, the authors found no differences in baseline imaging characteristics between those receiving epidural corticosteroid and lidocaine and those receiving lidocaine alone injections. No imaging measures of spinal stenosis were associated with a differential response to corticosteroids, indicating that imaging parameters of spinal stenosis did not predict a response to epidural corticosteroids.

  • Spine
    You have access
    It Is Not Necessary to Discontinue Seizure Threshold–Lowering Medications Prior to Myelography
    M. Krupa, H. Salts and F. Mihlon
    American Journal of Neuroradiology May 2019, 40 (5) 916-919; DOI: https://doi.org/10.3174/ajnr.A6027
  • Spine
    You have access
    Assessing Vascularity of Osseous Spinal Metastases with Dual-Energy CT-DSA: A Pilot Study Compared with Catheter Angiography
    Y.-C. Huang, F.-Y. Tsuang, C.-W. Lee, C.-Y. Wu and Y.-H. Lin
    American Journal of Neuroradiology May 2019, 40 (5) 920-925; DOI: https://doi.org/10.3174/ajnr.A6023

35 Years Ago in AJNR

  • 35 Years Ago in AJNR
    You have access
    Celebrating 35 Years of the AJNR
    American Journal of Neuroradiology May 2019, 40 (5) 926; DOI: https://doi.org/10.3174/ajnr.P0081

Online Features

  • Letters

    • LETTER
      You have access
      Use of Balanced Steady-State Free Precession Sequences in Evaluation of Drop Metastases
      A. Vossough and E.R. Melhem
      American Journal of Neuroradiology May 2019, 40 (5) E20; DOI: https://doi.org/10.3174/ajnr.A5964
    • LETTER
      You have access
      Reply:
      K. Buch, S. Rincon, P. Caruso and J.E. Kirsch
      American Journal of Neuroradiology May 2019, 40 (5) E21; DOI: https://doi.org/10.3174/ajnr.A6049
    • LETTER
      You have access
      Across the Pons and to the Milky Way: Where Are the Neuroradiology Publications?
      V.T. Lehman
      American Journal of Neuroradiology May 2019, 40 (5) E22-E23; DOI: https://doi.org/10.3174/ajnr.A6039
    • LETTER
      You have access
      Radiogenomics in Medulloblastoma: Can the Human Brain Compete with Artificial Intelligence and Machine Learning?
      A. Dasgupta and T. Gupta
      American Journal of Neuroradiology May 2019, 40 (5) E24-E25; DOI: https://doi.org/10.3174/ajnr.A6040
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American Journal of Neuroradiology: 40 (5)
American Journal of Neuroradiology
Vol. 40, Issue 5
1 May 2019
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