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Table of Contents

October 01, 2018; Volume 39,Issue 10

Perspectives

  • You have access
    Perspectives
    Bejoy Thomas
    American Journal of Neuroradiology October 2018, 39 (10) 1775; DOI: https://doi.org/10.3174/ajnr.P0053

Review Article

  • EDITOR'S CHOICEAdult Brain
    Open Access
    Deep Learning in Neuroradiology
    G. Zaharchuk, E. Gong, M. Wintermark, D. Rubin and C.P. Langlotz
    American Journal of Neuroradiology October 2018, 39 (10) 1776-1784; DOI: https://doi.org/10.3174/ajnr.A5543

Practice Perspectives

  • You have access
    Comparison of Advanced Imaging Resources, Radiology Workforce, and Payment Methodologies between the United States and Canada
    H.A. Valand, S. Chu, R. Bhala, R. Foley, J.A. Hirsch and R.K. Tu
    American Journal of Neuroradiology October 2018, 39 (10) 1785-1790; DOI: https://doi.org/10.3174/ajnr.A5755

General Contents

  • EDITOR'S CHOICEAdult Brain
    Open Access
    Clinical Value of Hybrid TOF-PET/MR Imaging–Based Multiparametric Imaging in Localizing Seizure Focus in Patients with MRI-Negative Temporal Lobe Epilepsy
    K. Shang, J. Wang, X. Fan, B. Cui, J. Ma, H. Yang, Y. Zhou, G. Zhao and J. Lu
    American Journal of Neuroradiology October 2018, 39 (10) 1791-1798; DOI: https://doi.org/10.3174/ajnr.A5814

    Twenty patients with MR imaging negative for temporal lobe epilepsy who underwent preoperative evaluation and 10 healthy controls were scanned using PET/MR imaging with simultaneous acquisition of PET and arterial spin-labeling. On the basis of the standard uptake value and CBF, receiver operating characteristic analysis and a logistic regression model were used to evaluate the predictive value for the localization. Complete concordance was noted in lateralization and localization among the PET, arterial spin-labeling, and histopathologic findings in 12/20 patients based on visual assessment. PET/MR imaging–based multiparametric imaging involving arterial spin-labeling may increase the clinical value of localizing the epileptogenic zone by providing concordant and complementary information.

  • EDITOR'S CHOICEAdult Brain
    Open Access
    Longitudinal Persistence of Meningeal Enhancement on Postcontrast 7T 3D-FLAIR MRI in Multiple Sclerosis
    S.N. Jonas, I. Izbudak, A.A. Frazier and D.M. Harrison
    American Journal of Neuroradiology October 2018, 39 (10) 1799-1805; DOI: https://doi.org/10.3174/ajnr.A5796

    Thirty-one subjects with MS were prospectively scanned before and after intravenous contrast administration at 2 time points, approximately 1 year apart. Fifteen subjects in the cohort were scanned at another time approximately 1 year later. Foci of enhancement were categorized into 4 subtypes: subarachnoid spread/fill, subarachnoid nodular, vessel wall, and dural foci. Persistence ranged from 71%–100% at 1 year and 73%–100% at 2 years, depending on the enhancement pattern. Subarachnoid spread/fill and subarachnoid nodular subtypes persisted less often than vessel wall and dural foci. Longitudinal persistence of meningeal enhancement on 3D-FLAIR at 7T in MS varies by pattern of enhancement and correlates with worsening disability; however, it is not significantly different in those on/off treatment.

  • Adult Brain
    Open Access
    Automated Integration of Multimodal MRI for the Probabilistic Detection of the Central Vein Sign in White Matter Lesions
    J.D. Dworkin, P. Sati, A. Solomon, D.L. Pham, R. Watts, M.L. Martin, D. Ontaneda, M.K. Schindler, D.S. Reich and R.T. Shinohara
    American Journal of Neuroradiology October 2018, 39 (10) 1806-1813; DOI: https://doi.org/10.3174/ajnr.A5765
  • Adult Brain
    You have access
    Predicting Genotype and Survival in Glioma Using Standard Clinical MR Imaging Apparent Diffusion Coefficient Images: A Pilot Study from The Cancer Genome Atlas
    C.-C. Wu, R. Jain, A. Radmanesh, L.M. Poisson, W.-Y. Guo, D. Zagzag, M. Snuderl, D.G. Placantonakis, J. Golfinos and A.S. Chi
    American Journal of Neuroradiology October 2018, 39 (10) 1814-1820; DOI: https://doi.org/10.3174/ajnr.A5794
  • Adult Brain
    You have access
    Near-Term Decrease in Brain Volume following Mild Traumatic Injury Is Detectible in the Context of Preinjury Volumetric Stability: Neurobiologic Insights from Analysis of Historical Imaging Examinations
    A.E. Goldman-Yassen, K.X. Chen, D. Edasery, K. Hsu, K. Ye and M.L. Lipton
    American Journal of Neuroradiology October 2018, 39 (10) 1821-1826; DOI: https://doi.org/10.3174/ajnr.A5769
  • Adult Brain
    You have access
    3D Black-Blood Luminal Angiography Derived from High-Resolution MR Vessel Wall Imaging in Detecting MCA Stenosis: A Preliminary Study
    X. Bai, P. Lv, K. Liu, Q. Li, J. Ding, J. Qu and J. Lin
    American Journal of Neuroradiology October 2018, 39 (10) 1827-1832; DOI: https://doi.org/10.3174/ajnr.A5770
  • Adult Brain
    You have access
    Clinical Evaluation of Highly Accelerated Compressed Sensing Time-of-Flight MR Angiography for Intracranial Arterial Stenosis
    S.s. Lu, M. Qi, X. Zhang, X.h. Mu, M. Schmidt, Y. Sun, C. Forman, P. Speier and X.n. Hong
    American Journal of Neuroradiology October 2018, 39 (10) 1833-1838; DOI: https://doi.org/10.3174/ajnr.A5786
  • FELLOWS' JOURNAL CLUBAdult Brain
    You have access
    Cerebrovascular Reactivity during Prolonged Breath-Hold in Experienced Freedivers
    V.C. Keil, L. Eichhorn, H.J.M.M. Mutsaerts, F. Träber, W. Block, B. Mädler, K. van de Ven, J.C.W. Siero, B.J. MacIntosh, J. Petr, R. Fimmers, H.H. Schild and E. Hattingen
    American Journal of Neuroradiology October 2018, 39 (10) 1839-1847; DOI: https://doi.org/10.3174/ajnr.A5790

    Fifteen male freedivers underwent repetitive 3T pseudocontinuous ASL and 31P-/1H-MR spectroscopy before, during, and after a 5-minute breath-hold (split into early and late phases) and gave temporally matching venous blood gas samples. The spatial coefficient of variation of CBF (by arterial spin-labeling) decreased during the early breath-hold phase whereas CBF remained almost stable during this phase and increased in the late phase. Cerebrovascular reactivity differed between the anterior and the posterior circulation during all phases. The cerebral energy metabolism of trained freedivers withstands severe hypoxic hypercarbia in prolonged breath-hold due to a complex cerebrovascular hemodynamic response.

  • FELLOWS' JOURNAL CLUBInterventional
    Open Access
    Reasons for Reperfusion Failures in Stent-Retriever-Based Thrombectomy: Registry Analysis and Proposal of a Classification System
    J. Kaesmacher, J. Gralla, P.J. Mosimann, F. Zibold, M.R. Heldner, E. Piechowiak, T. Dobrocky, M. Arnold, U. Fischer and P. Mordasini
    American Journal of Neuroradiology October 2018, 39 (10) 1848-1853; DOI: https://doi.org/10.3174/ajnr.A5759

    An intention-to-treat single-center cohort (n= 592) was re-evaluated for all patients in whom no reperfusion could be achieved (n = 63). Baseline characteristics were compared between patients with and without reperfusion failures. After qualitative review of all cases with reperfusion failures, a classification system was proposed and relative frequencies were reported. Reasons for reperfusion failure in stent-retriever thrombectomy are heterogeneous. The failure to establish intracranial or cervical access is almost as common as stent-retriever failure after establishing intracranial access. Systematic reporting standards of reasons may help to further estimate relative frequencies and thereby guide priorities.

  • Interventional
    Open Access
    Thrombus Permeability on Dynamic CTA Predicts Good Outcome after Reperfusion Therapy
    Z. Chen, F. Shi, X. Gong, R. Zhang, W. Zhong, R. Zhang, Y. Zhou and M. Lou
    American Journal of Neuroradiology October 2018, 39 (10) 1854-1859; DOI: https://doi.org/10.3174/ajnr.A5785
  • Interventional
    Open Access
    Identification of Hostile Hemodynamics and Geometries of Cerebral Aneurysms: A Case-Control Study
    B.J. Chung, F. Mut, C.M. Putman, F. Hamzei-Sichani, W. Brinjikji, D. Kallmes, C.M. Jimenez and J.R. Cebral
    American Journal of Neuroradiology October 2018, 39 (10) 1860-1866; DOI: https://doi.org/10.3174/ajnr.A5764
  • Interventional
    Open Access
    Integrating 3D Rotational Angiography into Gamma Knife Planning
    H. Hasegawa, S. Hanakita, M. Shin, M. Kawashima, T. Kin, W. Takahashi, M. Shojima, A.K. Nomoto, S. Aoki and N. Saito
    American Journal of Neuroradiology October 2018, 39 (10) 1867-1870; DOI: https://doi.org/10.3174/ajnr.A5763
  • Interventional
    Open Access
    Quantification of Blood Velocity with 4D Digital Subtraction Angiography Using the Shifted Least-Squares Method
    Y. Wu, G. Shaughnessy, C.A. Hoffman, E.L. Oberstar, S. Schafer, T. Schubert, K.L. Ruedinger, B.J. Davis, C.A. Mistretta, C.M. Strother and M.A. Speidel
    American Journal of Neuroradiology October 2018, 39 (10) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A5793
  • FELLOWS' JOURNAL CLUBHead & Neck
    You have access
    Correlation between Human Papillomavirus Status and Quantitative MR Imaging Parameters including Diffusion-Weighted Imaging and Texture Features in Oropharyngeal Carcinoma
    M. Ravanelli, A. Grammatica, E. Tononcelli, R. Morello, M. Leali, S. Battocchio, G.M. Agazzi, M. Buglione di Monale e Bastia, R. Maroldi, P. Nicolai and D. Farina
    American Journal of Neuroradiology October 2018, 39 (10) 1878-1883; DOI: https://doi.org/10.3174/ajnr.A5792

    A group of 59 patients with untreated histologically proved T2–T4 oropharyngeal squamous cell carcinoma were retrospectively analyzed. Human papillomavirus status was determined by viral DNA detection on tissue samples. MR imaging protocol included T2-weighted, contrast-enhanced T1-weighted, and DWI sequences. Parametric maps of ADC were obtained from DWI sequences. Texture analysis was performed on T2 and volumetric-interpolated brain examination sequences and on ADC maps. ADC was significantly lower in oropharyngeal squamous cell carcinoma positive for human papillomavirus compared with oropharyngeal squamous cell carcinoma negative for it. ADC and smoking status allowed noninvasive prediction of human papillomavirus status with a good accuracy.

  • Head & Neck
    You have access
    Negative Predictive Value of NI-RADS Category 2 in the First Posttreatment FDG-PET/CT in Head and Neck Squamous Cell Carcinoma
    P. Wangaryattawanich, B.F. Branstetter, M. Hughes, D.A. Clump, D.E. Heron and T.J. Rath
    American Journal of Neuroradiology October 2018, 39 (10) 1884-1888; DOI: https://doi.org/10.3174/ajnr.A5767
  • Head & Neck
    You have access
    The Diagnostic Value of Diffusion-Weighted Imaging in Differentiating Metastatic Lymph Nodes of Head and Neck Squamous Cell Carcinoma: A Systematic Review and Meta-Analysis
    C.H. Suh, Y.J. Choi, J.H. Baek and J.H. Lee
    American Journal of Neuroradiology October 2018, 39 (10) 1889-1895; DOI: https://doi.org/10.3174/ajnr.A5813
  • Head & Neck
    You have access
    Radiologic-Pathologic Correlation of Tumor Thickness and Its Prognostic Importance in Squamous Cell Carcinoma of the Oral Cavity: Implications for the Eighth Edition Tumor, Node, Metastasis Classification
    E.A.M. Weimar, S.H. Huang, L. Lu, B. O'Sullivan, B. Perez-Ordonez, I. Weinreb, A. Hope, L. Tong, D. Goldstein, J. Irish, J.R. de Almeida, S. Bratman, W. Xu and E. Yu
    American Journal of Neuroradiology October 2018, 39 (10) 1896-1902; DOI: https://doi.org/10.3174/ajnr.A5782
  • Head & Neck
    Open Access
    MR Imaging of the Facial Nerve through the Temporal Bone at 3T with a Noncontrast Ultrashort Echo Time Sequence
    J.P. Guenette, R.T. Seethamraju, J. Jayender, C.E. Corrales and T.C. Lee
    American Journal of Neuroradiology October 2018, 39 (10) 1903-1906; DOI: https://doi.org/10.3174/ajnr.A5754
  • Head & Neck
    You have access
    CT versus MR Imaging in Estimating Cochlear Radiation Dose during Gamma Knife Surgery for Vestibular Schwannomas
    A.M. Faramand, H. Kano, S. Johnson, A. Niranjan, J.C. Flickinger and L.D. Lunsford
    American Journal of Neuroradiology October 2018, 39 (10) 1907-1911; DOI: https://doi.org/10.3174/ajnr.A5808
  • Pediatrics
    Open Access
    Multidelay Arterial Spin-Labeling MRI in Neonates and Infants: Cerebral Perfusion Changes during Brain Maturation
    H.G. Kim, J.H. Lee, J.W. Choi, M. Han, S.-M. Gho and Y. Moon
    American Journal of Neuroradiology October 2018, 39 (10) 1912-1918; DOI: https://doi.org/10.3174/ajnr.A5774
  • Pediatrics
    Open Access
    The Impact of Persistent Leukoencephalopathy on Brain White Matter Microstructure in Long-Term Survivors of Acute Lymphoblastic Leukemia Treated with Chemotherapy Only
    N.D. Sabin, Y.T. Cheung, W.E. Reddick, D. Bhojwani, W. Liu, J.O. Glass, T.M. Brinkman, S.N. Hwang, D. Srivastava, C.-H. Pui, L.L. Robison, M.M. Hudson and K.R. Krull
    American Journal of Neuroradiology October 2018, 39 (10) 1919-1925; DOI: https://doi.org/10.3174/ajnr.A5791
  • Pediatrics
    You have access
    Apparent Diffusion Coefficient Levels and Neurodevelopmental Outcome in Fetuses with Brain MR Imaging White Matter Hyperintense Signal
    E. Katorza, G. Strauss, R. Cohen, M. Berkenstadt, C. Hoffmann, R. Achiron, E. Barzilay and O. Bar-Yosef
    American Journal of Neuroradiology October 2018, 39 (10) 1926-1931; DOI: https://doi.org/10.3174/ajnr.A5802
  • Pediatrics
    Open Access
    Longitudinal Findings of MRI and PET in West Syndrome with Subtle Focal Cortical Dysplasia
    Y. Sakaguchi, H. Kidokoro, C. Ogawa, Y. Okai, Y. Ito, H. Yamamoto, A. Ohno, T. Nakata, T. Tsuji, T. Nakane, H. Kawai, K. Kato, S. Naganawa and J. Natsume
    American Journal of Neuroradiology October 2018, 39 (10) 1932-1937; DOI: https://doi.org/10.3174/ajnr.A5772
  • Pediatrics
    Open Access
    Imaging of Clival Hypoplasia in CHARGE Syndrome and Hypothesis for Development: A Case-Control Study
    C.M. de Geus, J.E.H. Bergman, C.M.A. van Ravenswaaij-Arts and L.C. Meiners
    American Journal of Neuroradiology October 2018, 39 (10) 1938-1942; DOI: https://doi.org/10.3174/ajnr.A5810
  • Pediatrics
    You have access
    Multiple Brain Developmental Venous Anomalies as a Marker for Constitutional Mismatch Repair Deficiency Syndrome
    S.I. Shiran, L. Ben-Sira, R. Elhasid, J. Roth, U. Tabori, M. Yalon, S. Constantini and R. Dvir
    American Journal of Neuroradiology October 2018, 39 (10) 1943-1946; DOI: https://doi.org/10.3174/ajnr.A5766
  • Pediatrics
    You have access
    Spinal Imaging Findings of Open Spinal Dysraphisms on Fetal and Postnatal MRI
    U.D. Nagaraj, K.S. Bierbrauer, C.B. Stevenson, J.L. Peiro, F.Y. Lim, B. Zhang and B.M. Kline-Fath
    American Journal of Neuroradiology October 2018, 39 (10) 1947-1952; DOI: https://doi.org/10.3174/ajnr.A5760
  • Spine
    You have access
    Dilated Vein of the Filum Terminale on MRI: A Marker for Deep Lumbar and Sacral Dural and Epidural Arteriovenous Fistulas
    W. Brinjikji, C.A. Hilditch, J.M. Morris, A.A. Dmytriw, H. Cloft, V. Mendes Pereira, G. Lanzino and T. Krings
    American Journal of Neuroradiology October 2018, 39 (10) 1953-1956; DOI: https://doi.org/10.3174/ajnr.A5784
  • Spine
    You have access
    Spinal Instrumentation Rescue with Cement Augmentation
    A. Cianfoni, M. Giamundo, M. Pileggi, K. Huscher, M. Shapiro, M. Isalberti, D. Kuhlen and P. Scarone
    American Journal of Neuroradiology October 2018, 39 (10) 1957-1962; DOI: https://doi.org/10.3174/ajnr.A5795

Online Features

  • Letters

    • LETTER
      You have access
      Comment on “Common Origin of Brachiocephalic and Left Common Carotid Arteries: Proposal of New Terminology”
      R. Rajagopal and S. Sharma
      American Journal of Neuroradiology October 2018, 39 (10) E105; DOI: https://doi.org/10.3174/ajnr.A5761
    • LETTER
      You have access
      Reply:
      A.M. Tawfik, D.M. Sobh and N.M. Batouty
      American Journal of Neuroradiology October 2018, 39 (10) E106; DOI: https://doi.org/10.3174/ajnr.A5778
    • LETTER
      You have access
      Quality-Control Assessment to Improve the Accuracy of Dynamic Contrast-Enhanced MR Imaging Perfusion
      A. Lecler, J.C. Sadik and J. Savatovsky
      American Journal of Neuroradiology October 2018, 39 (10) E107; DOI: https://doi.org/10.3174/ajnr.A5787
    • LETTER
      You have access
      Reply:
      S. Karimi
      American Journal of Neuroradiology October 2018, 39 (10) E108; DOI: https://doi.org/10.3174/ajnr.A5826
    • LETTER
      You have access
      Vertebroplasty: Expectation or Evidence-Based Interventional Radiology?
      A. Braillon and S. Bewley
      American Journal of Neuroradiology October 2018, 39 (10) E109; DOI: https://doi.org/10.3174/ajnr.A5762
    • LETTER
      You have access
      Reply:
      R.V. Chandra, J. Maingard, H. Asadi, L.-A. Slater and J.A. Hirsch
      American Journal of Neuroradiology October 2018, 39 (10) E110-E111; DOI: https://doi.org/10.3174/ajnr.A5781
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American Journal of Neuroradiology: 39 (10)
American Journal of Neuroradiology
Vol. 39, Issue 10
1 Oct 2018
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