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Index by author

October 01, 2018; Volume 39,Issue 10

  1. Morello, R.

    1. FELLOWS' JOURNAL CLUBHead and Neck Imaging
      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.

  2. Morris, J.M.

    1. Spine Imaging and Spine Image-Guided Interventions
      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

  3. Mosimann, P.J.

    1. FELLOWS' JOURNAL CLUBNeurointervention
      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.

  4. Mu, X.h.

    1. Adult Brain
      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

  5. Mut, F.

    1. Neurointervention
      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

  6. Mutsaerts, H.J.M.M.

    1. FELLOWS' JOURNAL CLUBAdult Brain
      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.

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