Akio Hiwatashi

Summary

Affiliation: University of Rochester
Country: USA

Publications

  1. ncbi request reprint Fractional anisotropy is higher in Heschl's gyrus than in superior temporal gyrus in normal subjects
    Akio Hiwatashi
    Department of Imaging Science, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642 8648, USA
    Acad Radiol 13:73-6. 2006
  2. ncbi request reprint CNS vasculitis and vasculopathy: efficacy and usefulness of diffusion-weighted echoplanar MR imaging
    Toshio Moritani
    Division of Neuroradiology, Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Clin Imaging 28:261-70. 2004
  3. ncbi request reprint Conspicuity of diffuse axonal injury lesions on diffusion-weighted MR imaging
    Toshibumi Kinoshita
    Department of Radiology, Division of Neuroradiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Eur J Radiol 56:5-11. 2005
  4. ncbi request reprint Secondary degeneration of the substantia nigra and corticospinal tract after hemorrhagic middle cerebral artery infarction: diffusion-weighted MR findings
    Toshibumi Kinoshita
    Department of Radiology, Division of Neuroradiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Magn Reson Med Sci 1:175-8. 2002
  5. ncbi request reprint Hypointensity on diffusion-weighted MRI of the brain related to T2 shortening and susceptibility effects
    Akio Hiwatashi
    Department of Diagnostic Radiology, University of Rochester Medical Center, Box 648, 601 Elmwood Ave, Rochester, NY 14642 8648, USA
    AJR Am J Roentgenol 181:1705-9. 2003
  6. ncbi request reprint Diffusion tensor MR imaging of the cervical spinal cord in patients with multiple sclerosis
    Yoshimitsu Ohgiya
    Division of Diagnostic and Interventional Neuroradiology, Department of Imaging Science, University of Rochester Medical Center, Rochester, NY, USA
    Eur Radiol 17:2499-504. 2007
  7. ncbi request reprint Cement leakage during vertebroplasty can be predicted on preoperative MRI
    Akio Hiwatashi
    Division of Diagnostic and Interventional Neuroradiology, Department of Imaging Services, University of Rochester Medical Center, Rochester, NY, USA
    AJR Am J Roentgenol 188:1089-93. 2007
  8. ncbi request reprint Sickle cell cerebrovascular disease: usual and unusual findings on MR imaging and MR angiography
    Toshio Moritani
    Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Clin Imaging 28:173-86. 2004
  9. ncbi request reprint Kyphoplasty versus vertebroplasty to increase vertebral body height: a cadaveric study
    Akio Hiwatashi
    Department of Radiology, University of Rochester Medical Center, 601 Elmwood Ave, Box 648, Rochester, NY 14642 8648, USA
    Radiology 237:1115-9. 2005
  10. ncbi request reprint Diffusion-weighted MR imaging of neuro-Behçet's disease: a case report
    Akio Hiwatashi
    Department of Diagnostic Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642 8648, USA
    Neuroradiology 45:468-71. 2003

Collaborators

Detail Information

Publications22

  1. ncbi request reprint Fractional anisotropy is higher in Heschl's gyrus than in superior temporal gyrus in normal subjects
    Akio Hiwatashi
    Department of Imaging Science, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642 8648, USA
    Acad Radiol 13:73-6. 2006
    ..We examined if it were possible to differentiate the subcortical white matter of the HG from the superior temporal gyrus (STG) using diffusion tensor (DT) imaging...
  2. ncbi request reprint CNS vasculitis and vasculopathy: efficacy and usefulness of diffusion-weighted echoplanar MR imaging
    Toshio Moritani
    Division of Neuroradiology, Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Clin Imaging 28:261-70. 2004
    ..DWI seems useful in assessing the treatment and patient outcome...
  3. ncbi request reprint Conspicuity of diffuse axonal injury lesions on diffusion-weighted MR imaging
    Toshibumi Kinoshita
    Department of Radiology, Division of Neuroradiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Eur J Radiol 56:5-11. 2005
    ....
  4. ncbi request reprint Secondary degeneration of the substantia nigra and corticospinal tract after hemorrhagic middle cerebral artery infarction: diffusion-weighted MR findings
    Toshibumi Kinoshita
    Department of Radiology, Division of Neuroradiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Magn Reson Med Sci 1:175-8. 2002
    ..A corresponding apparent diffusion coefficient map revealed a uniformly decreased signal in the same area. This represents secondary degeneration and should not be mistaken for other pathological conditions, such as a new infarction...
  5. ncbi request reprint Hypointensity on diffusion-weighted MRI of the brain related to T2 shortening and susceptibility effects
    Akio Hiwatashi
    Department of Diagnostic Radiology, University of Rochester Medical Center, Box 648, 601 Elmwood Ave, Rochester, NY 14642 8648, USA
    AJR Am J Roentgenol 181:1705-9. 2003
  6. ncbi request reprint Diffusion tensor MR imaging of the cervical spinal cord in patients with multiple sclerosis
    Yoshimitsu Ohgiya
    Division of Diagnostic and Interventional Neuroradiology, Department of Imaging Science, University of Rochester Medical Center, Rochester, NY, USA
    Eur Radiol 17:2499-504. 2007
    ..The mean ADC was 0.810 x 10(-3) mm(2)/s for plaques and 0.722 x 10(-3) mm(2)/s for NAWM, as compared with 0.640 x 10(-3) mm(2)/s for CS. FA and ADC showed significant differences between plaques, NAWM and control WM(P < 0.01)...
  7. ncbi request reprint Cement leakage during vertebroplasty can be predicted on preoperative MRI
    Akio Hiwatashi
    Division of Diagnostic and Interventional Neuroradiology, Department of Imaging Services, University of Rochester Medical Center, Rochester, NY, USA
    AJR Am J Roentgenol 188:1089-93. 2007
    ..Previous studies have shown that cement leakage into an adjacent disk space is a risk factor for new fracture after vertebroplasty. The purpose of this study was to investigate the use of preoperative MRI for predicting such cement leakage...
  8. ncbi request reprint Sickle cell cerebrovascular disease: usual and unusual findings on MR imaging and MR angiography
    Toshio Moritani
    Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642, USA
    Clin Imaging 28:173-86. 2004
    ..MRI and MRA are useful in defining the basis for stroke and assessing the effects of chronic transfusion therapy...
  9. ncbi request reprint Kyphoplasty versus vertebroplasty to increase vertebral body height: a cadaveric study
    Akio Hiwatashi
    Department of Radiology, University of Rochester Medical Center, 601 Elmwood Ave, Box 648, Rochester, NY 14642 8648, USA
    Radiology 237:1115-9. 2005
    ..To prospectively compare the vertebral height restoration achieved with kyphoplasty and vertebroplasty in fresh cadavers by using multi-detector row computed tomography (CT)...
  10. ncbi request reprint Diffusion-weighted MR imaging of neuro-Behçet's disease: a case report
    Akio Hiwatashi
    Department of Diagnostic Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642 8648, USA
    Neuroradiology 45:468-71. 2003
    ..DWI is useful for differentiating an acute exacerbation of neuro-Behçet's disease from acute infarction...
  11. ncbi request reprint Vertebroplasty: cement leakage into the disc increases the risk of new fracture of adjacent vertebral body
    Edward P Lin
    Department of Radiology, Division of Diagnostic and Interventional Neuroradiology, University of Rochester Medical Center, Rochester, NY 14642, USA
    AJNR Am J Neuroradiol 25:175-80. 2004
    ..This study analyzed the risk of new fractures of adjacent vertebral bodies in relationship to cement leakage into the disk...
  12. ncbi request reprint Axial loading during MR imaging can influence treatment decision for symptomatic spinal stenosis
    Akio Hiwatashi
    Department of Diagnostic Radiology, Division of Diagnostic and Interventional Neuroradiology, University of Rochester Medical Center, Rochester, NY 14642, USA
    AJNR Am J Neuroradiol 25:170-4. 2004
    ..However, the clinical significance is unclear. The purpose of this study was to determine whether the narrowing of the spinal canal with axial loading during MR imaging could influence treatment decision for spinal stenosis...
  13. ncbi request reprint Increase in vertebral body height after vertebroplasty
    Akio Hiwatashi
    Department of Diagnostic Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642 8648, USA
    AJNR Am J Neuroradiol 24:185-9. 2003
    ..The purpose of this study was to document the frequency and degree of changes in vertebral body height after vertebroplasty...
  14. ncbi request reprint Diffusion-weighted MR imaging of posterior reversible leukoencephalopathy syndrome: a pictorial essay
    Toshibumi Kinoshita
    Department of Radiology, Division of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue Box 648, Rochester, NY 14642, USA
    Clin Imaging 27:307-15. 2003
    ..We will emphasize the role of diffusion-weighted imaging for the discrimination of irreversible ischemic injury from reversible vasogenic edema...
  15. ncbi request reprint Reply to Preoperative MR findings predictive of cement leakage during vertebroplasty: low signal intensity linear lesion in intervertebral disk
    Akio Hiwatashi
    AJR Am J Roentgenol 190:W165. 2008
  16. doi request reprint Cortical damage in Alzheimer's disease estimation in medial and lateral aspects of the cerebrum using an improved mapping method based on diffusion-weighted magnetic resonance imaging
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Acad Radiol 15:193-200. 2008
    ..We improved on this method to visualize the cortical damage in Alzheimer's disease (AD) in the lateral and medial aspects of the cerebral hemispheres and to provide anatomic references...
  17. doi request reprint MR tractography based on directional diffusion function validation in somatotopic organization of the pyramidal tract
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Acad Radiol 15:186-92. 2008
    ..To validate the DDF-based tractography method, we studied the somatotopic organization of the pyramidal tract in the posterior limb of the internal capsule (PLIC)...
  18. ncbi request reprint [Percutaneous vertebroplasty]
    Akio Hiwatashi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    Fukuoka Igaku Zasshi 98:337-45. 2007
  19. ncbi request reprint Quantitative perfusion imaging with pulsed arterial spin labeling: a phantom study
    Tomoyuki Noguchi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Magn Reson Med Sci 6:91-7. 2007
    ..We compared the true and theoretical flow rates in a flow phantom to confirm the analytical validity of quantitative perfusion imaging with Q2TIPS sequence...
  20. ncbi request reprint Cortical thickness difference across the central sulcus visualized in the presence of vasogenic edema
    Osamu Togao
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812 8582, Japan
    Eur J Radiol 66:274-81. 2008
    ..To confirm the cortical thickness difference across the central sulcus (CS) visualized in the presence of vasogenic edema on MRI...
  21. ncbi request reprint Clinically silent choroid plexus cyst: evaluation by diffusion-weighted MRI
    Toshibumi Kinoshita
    Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, Tottori 683 8504, Japan
    Neuroradiology 47:251-5. 2005
    ....
  22. doi request reprint MRI of glossopharyngeal neuralgia caused by neurovascular compression
    Akio Hiwatashi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    AJR Am J Roentgenol 191:578-81. 2008
    ..Glossopharyngeal neuralgia is rare but causes severe pain. We retrospectively evaluated preoperative MR images of patients with glossopharyngeal neuralgia caused by neurovascular compression...