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  1. No Access

    Article

    Prediction of the origin of intracanalicular neoplasms with high-resolution MR imaging

    Correct diagnosis of intracanalicular neoplasms is important to avoid unnecessary operations or an unsuitable surgical approach. We investigated the capability of high-resolution three-dimensional MR imaging i...

    S. Furuta, S. Takahashi, S. Higano, S. Hashimoto in Neuroradiology (2005)

  2. No Access

    Article

    Colour-coded fractional anisotropy images: differential visualisation of white-matter tracts – preliminary experience

    Diffusion-tensor analysis allows quantitative assessment of diffusion anisotropy. Fractional anisotropy (FA) is commonly used to quantify anisotropy. One of the limitations of FA imaging is, however, that it ...

    T. Murata, S. Higano, H. Tamura, S. Mugikura, S. Takahashi in Neuroradiology (2002)

  3. No Access

    Article

    Investigation of hydrocephalus with three-dimensional constructive interference in steady state MRI

    We report four patients with various types of hydrocephalus in whom constructive interference in steady state (CISS) MRI disclosed the cause of the hydrocephalus. The imaging clearly delineated an abnormal co...

    N. Kurihara, S. Takahashi, H. Tamura, S. Higano, S. Furuta, H. Jokura… in Neuroradiology (2000)

  4. No Access

    Article

    Hemorrhage in pituitary adenoma: correlation of MR imaging with operative findings

    The aim of this study was to correlate MR imaging and operative findings of hemorrhage in pituitary macroadenomas. We retrospectively reviewed MR images of 113 surgically proven pituitary adenomas. All patien...

    N. Kurihara, S. Takahashi, S. Higano, H. Ikeda, S. Mugikura… in European Radiology (1998)

  5. No Access

    Article

    CT and MR imaging of craniopharyngioma

    We reviewed imaging findings of CT and MR imaging in 20 cases of surgically confirmed craniopharyngioma in an attempt to determine their relation to patterns of tumor extent. The relationship between these pa...

    M. Tsuda, S. Takahashi, S. Higano, N. Kurihara, H. Ikeda, K. Sakamoto in European Radiology (1997)

  6. No Access

    Article

    Correlation of lesions in the hippocampal region noted on MR images with clinical features

    The purpose of our work was to compare the MR imaging findings of obvious hippocampal and/or juxtahippocampal lesions with corresponding clinical features. Magnetic resonance images of 63 patients with obviou...

    S. Takahashi, S. Higano, N. Kurihara, S. Mugikura, K. Sakamoto… in European Radiology (1997)

  7. No Access

    Article

    Congenital absence and aberrant course of the internal carotid artery

    We retrospectively reviewed the imaging features of an aberrant course of the internal carotid artery (ICA) in one patient and its unilateral absence in four. Absence of the ICA was initially detected by MRI a...

    S. Takahashi, S. Higano, N. Kurihara, R. Shirane, R. Asai… in European Radiology (1996)

  8. No Access

    Article

    Reye's syndrome with cortical laminar necrosis: MRI

    Serial MRI findings are described in two patients with Reye's syndrome, demonstrating diffuse cortical and white matter changes. In the acute stage, T2-weighted images showed subtle but definite laminar high s...

    T. Kinoshita, S. Takahashi, K. Ishii, S. Higano, K. Matsumoto… in Neuroradiology (1996)

  9. No Access

    Article

    Cerebral oxygen and glucose metabolism and blood flow in mitochondrial encephalomyopathy: a PET study

    Cerebral blood flow (CBF), oxygen metabolism (CMRO2), and glucose metabolism (CMRGlc) were measure using positron emission tomography in five patients diagnosed as having mitochondrial encephalomyopathy. The mola...

    F. Shishido, K. Uemura, A. Inugami, N. Tomura, S. Higano, H. Fujita… in Neuroradiology (1996)

  10. No Access

    Chapter and Conference Paper

    Positron Emission Tomography in Patients with an Acute Embolic Occlusion of the Carotid Artery

    The results of recent experimental studies using animal models have greatly increased our knowledge of the early biochemical, pathophysiological, and histological events in ischemic brain tissue damage [1–7]. ...

    K. Uemura, S. Higano in Thrombolytic Therapy in Acute Ischemic Stroke III (1995)

  11. No Access

    Chapter and Conference Paper

    Large intracranial aneurysm studied by three-dimensional MRI

    We tried to study large intracranial aneurysms by contrast-enhanced three-dimensional (3D) MRI. Contrast-enhanced, axial (or coronal), 3D-FLASH images were obtained followed by 2D partitions and other perpendi...

    N. Kurihara, S. Takahashi, S. Higano… in Proceedings of the XV Symposium Neuroradio… (1995)

  12. No Access

    Chapter and Conference Paper

    Multiplanar MRI of cerebral infarcts along the distribution of the basal perforating arteries

    Multiplanar magnetic resonance (MR) images of 77 discrete infarcts in the basal grey matter region from 71 patients were reviewed for their distribution and extent, in correlation with the distribution of perf...

    S. Takahashi, K. Ishii, K. Matsumoto… in Proceedings of the XV Symposium Neuroradio… (1995)

  13. No Access

    Chapter and Conference Paper

    MRI of obvious lesions in the hippocampus and/or juxtahippocampal region

    The MR images of 38 patients with obvious lesions in the hippocampal and/or juxtahippocampal regions were reviewed and correlated with their clinical features. Based on the MRI and clinical findings, the patie...

    S. Takahashi, K. Ishii, K. Matsumoto… in Proceedings of the XV Symposium Neuroradio… (1995)

  14. No Access

    Chapter and Conference Paper

    CT and MRI of supratentorial intra-axial tumours in children

    MRI and CT of 32 children with pathologically proven supratentorial “intra-axial” tumours were retrospectively reviewed. Twelve histological types were included. The location of tumours is helpful for diagnosi...

    S. Higano, S. Takahashi, N. Kurihara… in Proceedings of the XV Symposium Neuroradio… (1995)

  15. No Access

    Article

    The anterior choroidal artery syndrome

    We reviewed 12 cases of infarcts in the territory of the anterior choroidal artery (AChA) on CT and/or MRI. In each case vascular occlusion in the region was verified angiographically. Although the extent of t...

    S. Takahashi, K. Ishii, K. Matsumoto, S. Higano, T. Ishibashi, M. Suzuki… in Neuroradiology (1994)

  16. No Access

    Article

    Cranial MRI and MR angiography in Menkes' syndrome

    We report two boys with Menkes' syndrome who underwent cranial MRI and MR angiography (MRA). In both, CT and MRI revealed progressive cerebral atrophy with a subdural haematoma or effusion. Delayed myelination...

    S. Takahashi, K. Ishii, K. Matsumoto, S. Higano, T. Ishibashi, M. Zuguchi… in Neuroradiology (1993)

  17. No Access

    Chapter and Conference Paper

    PET in thalamic tumours

    We have studied eight patients with thalamic tumours using positron emission tomography (PET) with 15O-labelled gas and 18F-fluorodeoxyglucose and/or 11C-methionine. PET with 11C-methionine delineated clearly the...

    Dr. Toshihide Ogawa, A. Inugami, I. Kanno… in Proceedings of the XIV Symposium Neuroradi… (1991)