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Index by author

May 01, 2019; Volume 40,Issue 5

  1. Hiramatsu, M.

    1. 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

  2. Hishikawa, T.

    1. 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

  3. Hiwatashi, A.

    1. 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.

  4. Honda, H.

    1. 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.

  5. Huang, Y.-C.

    1. Spine
      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

  6. Huda, F.

    1. 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

  7. Hwang, W.

    1. Interventional
      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

  8. Hwang, W.D.

    1. 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.

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