Akio Hiwatashi

Summary

Affiliation: Graduate School
Country: Japan

Publications

  1. doi request reprint Regional gray and white matter volume abnormalities in obsessive-compulsive disorder: a voxel-based morphometry study
    Osamu Togao
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Psychiatry Res 184:29-37. 2010
  2. doi request reprint Arterial spin labelling at 3-T MR imaging for detection of individuals with Alzheimer’s disease
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Higashi ku, Fukuoka, Japan
    Eur Radiol 19:2819-25. 2009
  3. doi request reprint Arterial spin labeling of hemangioblastoma: differentiation from metastatic brain tumors based on quantitative blood flow measurement
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka, 812 8582, Japan
    Neuroradiology 54:809-13. 2012
  4. doi request reprint Age-related microstructural changes in subcortical white matter during postadolescent periods in men revealed by diffusion-weighted MR imaging
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka 812 8582, Japan
    Hum Brain Mapp 30:3142-50. 2009
  5. doi request reprint Differentiating primary CNS lymphoma from glioblastoma multiforme: assessment using arterial spin labeling, diffusion-weighted imaging, and ¹⁸F-fluorodeoxyglucose positron emission tomography
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Neuroradiology 55:135-43. 2013
  6. doi request reprint Accelerated territorial arterial spin labeling based on shared rotating control acquisition: an observer study for validation
    Hironori Kamano
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka, 812 8582, Japan
    Neuroradiology 54:65-71. 2012
  7. doi request reprint Simultaneous arterial spin labeling cerebral blood flow and morphological assessments for detection of Alzheimer's disease
    Tuvshinjargal Dashjamts
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Acad Radiol 18:1492-9. 2011
  8. doi request reprint Morphologic change in vertebral body after percutaneous vertebroplasty: follow-up with MDCT
    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 195:W207-12. 2010
  9. doi request reprint Arterial spin labeling in patients with chronic cerebral artery steno-occlusive disease: correlation with (15)O-PET
    Hironori Kamano
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Acta Radiol 54:99-106. 2013
  10. 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

Collaborators

Detail Information

Publications36

  1. doi request reprint Regional gray and white matter volume abnormalities in obsessive-compulsive disorder: a voxel-based morphometry study
    Osamu Togao
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Psychiatry Res 184:29-37. 2010
    ..The results suggested that WM volume abnormalities in the orbitofrontal region, anterior limb of the internal capsule, and anterior cingulate gyrus would imply abnormalities in the pathways of frontal-striatal circuits...
  2. doi request reprint Arterial spin labelling at 3-T MR imaging for detection of individuals with Alzheimer’s disease
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Higashi ku, Fukuoka, Japan
    Eur Radiol 19:2819-25. 2009
    ..861 to 0.877 for absolute and 0.910 to 0.932 for normalized rCBF. Our results suggest that ASL at 3-T MR imaging can be used to help discriminate individuals with AD from normal subjects...
  3. doi request reprint Arterial spin labeling of hemangioblastoma: differentiation from metastatic brain tumors based on quantitative blood flow measurement
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka, 812 8582, Japan
    Neuroradiology 54:809-13. 2012
    ..Hemangioblastoma and metastatic tumors are the major differential diagnoses for the posterior fossa tumors in adults. Our purpose was to evaluate the efficacy of ASL in differentiating hemangioblastomas from metastatic brain tumors...
  4. doi request reprint Age-related microstructural changes in subcortical white matter during postadolescent periods in men revealed by diffusion-weighted MR imaging
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka 812 8582, Japan
    Hum Brain Mapp 30:3142-50. 2009
    ..In these regions, the MD rapidly decreased until middle age and thereafter reached a plateau. Our results revealed microstructural changes in local subcortical WM and suggests a continuing maturational process in postoadolescent periods...
  5. doi request reprint Differentiating primary CNS lymphoma from glioblastoma multiforme: assessment using arterial spin labeling, diffusion-weighted imaging, and ¹⁸F-fluorodeoxyglucose positron emission tomography
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Neuroradiology 55:135-43. 2013
    ....
  6. doi request reprint Accelerated territorial arterial spin labeling based on shared rotating control acquisition: an observer study for validation
    Hironori Kamano
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka, 812 8582, Japan
    Neuroradiology 54:65-71. 2012
    ..Our purpose was to validate the accuracy of the shared rotating control acquisition method in evaluation of vascular territories...
  7. doi request reprint Simultaneous arterial spin labeling cerebral blood flow and morphological assessments for detection of Alzheimer's disease
    Tuvshinjargal Dashjamts
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Acad Radiol 18:1492-9. 2011
    ....
  8. doi request reprint Morphologic change in vertebral body after percutaneous vertebroplasty: follow-up with MDCT
    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 195:W207-12. 2010
    ..The purpose of this prospective study was to evaluate maintenance of spinal canal size and restoration of vertebral height and wedge angle after percutaneous vertebroplasty...
  9. doi request reprint Arterial spin labeling in patients with chronic cerebral artery steno-occlusive disease: correlation with (15)O-PET
    Hironori Kamano
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Acta Radiol 54:99-106. 2013
    ..Heterogeneity of arterial transit time due to cerebral artery steno-occlusive lesions hampers accurate regional cerebral blood flow measurement by arterial spin labeling (ASL)...
  10. 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...
  11. ncbi request reprint Alzheimer's disease: diagnosis by different methods of voxel-based morphometry
    Tuvshinjargal Dashjamts
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Fukuoka Igaku Zasshi 103:59-69. 2012
    ..The purpose of this study was to determine the optimal computational options in voxel-based morphometry (VBM) for discrimination between Alzheimer's disease (AD) patients and healthy control (HC) subjects...
  12. doi request reprint High-resolution three-dimensional diffusion-weighted imaging of middle ear cholesteatoma at 3.0 T MRI: usefulness of 3D turbo field-echo with diffusion-sensitized driven-equilibrium preparation (TFE-DSDE) compared to single-shot echo-planar imaging
    Koji Yamashita
    Department of Clinical Radiology, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Eur J Radiol 82:e471-5. 2013
    ....
  13. doi request reprint Volumetric asymmetry and differential aging effect of the human caudate nucleus in normal individuals: a prospective MR imaging study
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    J Neuroimaging 21:34-7. 2011
    ..the purpose of this study was to examine interhemispheric asymmetry in volume of the caudate nucleus and its age dependency...
  14. doi request reprint Usefulness of three-dimensional T1-weighted spoiled gradient-recalled echo and three-dimensional heavily T2-weighted images in preoperative evaluation of spinal dysraphism
    Nobuya Murakami
    Department of Neurosurgery, Kyushu University, Fukuoka, Japan
    Childs Nerv Syst 29:1905-14. 2013
    ....
  15. doi request reprint High-resolution STIR for 3-T MRI of the posterior fossa: visualization of the lower cranial nerves and arteriovenous structures related to neurovascular compression
    Akio Hiwatashi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    AJR Am J Roentgenol 199:644-8. 2012
    ..The purpose of this retrospective study was to evaluate whether 3D STIR MRI could simultaneously depict the lower cranial nerves--fifth through twelfth--and the blood vessels in the posterior fossa...
  16. 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...
  17. 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...
  18. ncbi request reprint A case of giant cell glioblastoma: a mimicker of a cerebral metastasis
    Eiki Nagao
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    Fukuoka Igaku Zasshi 101:142-7. 2010
    ..When we find a solitary ring-enhancing intracranial mass with little tendency of invasion, we need to consider the possibility of giant cell GBM as a differential diagnosis...
  19. doi request reprint Ultrashort TE MRI: Usefulness after percutaneous vertebroplasty
    Akio Hiwatashi
    Department of Clinical Radiology, Kyushu University, Higashi ku, Fukuoka, Japan
    AJR Am J Roentgenol 195:W365-8. 2010
    ..The purpose of this study was to assess the feasibility of clinical 3-T ultrashort TE MRI for the visualization of bone cement after percutaneous vertebroplasty...
  20. pmc Amide proton transfer imaging of adult diffuse gliomas: correlation with histopathological grades
    Osamu Togao
    Department of Molecular Imaging and Diagnosis, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan O T Department of Clinical Radiology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan O T, T Y, A H, K Y, K K, H H Philips Research, Hamburg, Germany J K Philips Electronics Japan, Tokyo, Japan Y S Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan S O S, T I Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan N H, M M, K Y Advanced Imaging Research Center, UT Southwestern Medical Center, Dallas, Texas K S, M T
    Neuro Oncol 16:441-8. 2014
    ..We prospectively assessed the usefulness of APT imaging in predicting the histological grade of adult diffuse gliomas...
  21. doi request reprint Intra- and interhemispheric variations of diffusivity in subcortical white matter in normal human brain
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Eur Radiol 20:227-33. 2010
    ..Our results revealed significant intra- and interhemispheric regional variations in MD in subcortical WM, which may be related to different densities of axons and myelin sheaths...
  22. doi request reprint Asymmetrical cerebral perfusion demonstrated by noninvasive arterial spin-labeling perfusion imaging in a patient with corticobasal degeneration
    Tuvshinjargal Dashjamts
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Jpn J Radiol 28:75-8. 2010
    ..In addition, ASL rCBF mapping demonstrated asymmetrical hypoperfusion areas in locations typical for CBD, proving its potential usefulness for routine clinical differential diagnosis...
  23. doi request reprint Diffusivity of intraorbital lymphoma vs. IgG4-related DISEASE: 3D turbo field echo with diffusion-sensitised driven-equilibrium preparation technique
    Akio Hiwatashi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka, 812 8582, Japan
    Eur Radiol 24:581-6. 2014
    ..The purpose of this study was to differentiate intraorbital lymphoma from immunoglobulin G4-related disease (IgG4-RD) using the apparent diffusion coefficient (ADC) derived from DSDE-TFE...
  24. 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)...
  25. doi request reprint Contributing factors in the pathogenesis of acquired cholesteatoma: size analysis based on MDCT
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Higashi ku, Fukuoka, Japan
    AJR Am J Roentgenol 196:1172-5. 2011
    ..The purpose of this article is to explore the factors that contribute to the occurrence of cholesteatoma. We studied the size of the mastoid air cells and the tympanic cavity using high-resolution CT...
  26. ncbi request reprint Pseudoprogression following concurrent temozolomide and radiotherapy in a patient with glioblastoma: findings on functional imaging techniques
    Yuko Shirakawa
    Departments of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
    Fukuoka Igaku Zasshi 101:257-64. 2010
    ..The lesion was pathologically diagnosed as pseudoprogression after additional surgical resection...
  27. ncbi request reprint Intraarterial therapy for acute ischemic stroke: investigation of prognostic factors
    Tomoyuki Noguchi
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    Fukuoka Igaku Zasshi 98:320-8. 2007
    ..However, the criteria for the indications, the choice of the thrombolytic agents, and the use of adjunctive agents are controversial. We retrospectively analyzed the prognostic factors of IAT...
  28. doi request reprint Deterioration of abstract reasoning ability in mild cognitive impairment and Alzheimer's disease: correlation with regional grey matter volume loss revealed by diffeomorphic anatomical registration through exponentiated lie algebra analysis
    Takashi Yoshiura
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812 8582, Japan
    Eur Radiol 21:419-25. 2011
    ..To determine which brain regions are relevant to deterioration in abstract reasoning as measured by Raven's Colored Progressive Matrices (CPM) in the context of dementia...
  29. doi request reprint Usefulness of cone-beam CT before and after percutaneous vertebroplasty
    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 191:1401-5. 2008
    ..The usefulness of cone-beam C-arm CT for percutaneous vertebroplasty has not been fully evaluated. The purpose of this study was to assess the feasibility of cone-beam CT for evaluation before and after vertebroplasty...
  30. 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
  31. doi request reprint Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT
    Koji Yamashita
    Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Higashi ku, Fukuoka, Japan
    Acta Radiol 52:229-33. 2011
    ..Inner ear malformations may cause sensorineural hearing loss (SNHL). However, the correlation between the small lateral semi-circular canal (LSCC) and SNHL is controversial...
  32. ncbi request reprint The origin of right inferior phrenic artery on multidetector row helical CT
    Akio Hiwatashi
    Department of Radiology, Fukuoka City Hospital, Yoshizukahonmachi 13 1, Hakata Ku, Fukuoka 812 0046, Japan
    Clin Imaging 27:298-303. 2003
    ..The sensitivity of CT was 92%. Multidetector row helical CT provides valuable anatomical information for angiographer...
  33. doi request reprint Executive function and diffusion in frontal white matter of adults with moyamoya disease
    Akira Nakamizo
    Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan Electronic address
    J Stroke Cerebrovasc Dis 23:457-61. 2014
    ..Apparent diffusion coefficient (ADC) in normal-appearing white matter on conventional magnetic resonance imaging correlates with cerebral hemodynamics in the frontal lobe...
  34. 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...
  35. doi request reprint Utility of 3-T FLAIR and 3D short tau inversion recovery MR imaging in the preoperative diagnosis of hippocampal sclerosis: direct comparison with 1.5-T FLAIR MR imaging
    Kimiaki Hashiguchi
    Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Higashi ku, Fukuoka, Japan
    Epilepsia 51:1820-8. 2010
    ....
  36. doi request reprint Acute onset antenatal fetal neurological injury suspected prenatally based on abnormalities in antenatal testing: a case report
    Satomi Iwasaki
    Department of Gynecology and Obstetrics, Graduate School of Medical Sciences, Kyushu University, 3 1 1 Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    J Matern Fetal Neonatal Med 22:1207-10. 2009
    ..Following delivery, the infant was diagnosed with hypoxic ischemic encephalopathy by DWI in the first 24 h after birth, despite having a normal postnatal brain ultrasound...