Research Topics
| Kazuhiro TsuchiyaSummaryAffiliation: University of Tokyo Country: Japan Publications
| Collaborators
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Detail Information
Publications
Hybrid of opposite-contrast MRA of the brain by combining time-of-flight and black-blood sequences: initial experience in major trunk stenoocclusive diseasesKazuhiro Tsuchiya
Department of Radiology, Kyorin University Faculty of Medicine, Tokyo, Japan
J Magn Reson Imaging 31:56-60. 2010....
Diffusion-weighted MRI of the cervical spinal cord using a single-shot fast spin-echo technique: findings in normal subjects and in myelomalaciaK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2 Shinkawa, Mitaka, 181 8611 Tokyo, Japan
Neuroradiology 45:90-4. 2003..30+/-0.38x10(-3) mm(2)/s) were significantly higher than those of normal volunteers (2.26+/-0.08x10(-3) mm(2)/s). Increased diffusion in areas of cervical myelomalacia, suggesting irreversible damage, can be detected using this technique...- Diffusion-weighted MRI of subdural and epidural empyemasK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2 Shinkawa, Mitaka, 181 8611, Tokyo, Japan
Neuroradiology 45:220-3. 2003..DWI may be an adjunct to conventional sequences for differentiating between subdural and epidural empyemas... - Visualization of extracranial-intracranial bypass using multidetector-row helical computed tomography angiographyKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
J Comput Assist Tomogr 27:231-4. 2003..Our purpose was to determine whether CT angiography using the MDCT system could effectively depict extracranial-intracranial (EC-IC) bypass routes... - MR digital subtraction angiography in the diagnosis of meningiomasKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine 6 20 2, Shinkawa, Mitaka, Tokyo 181 8611, Japan
Eur J Radiol 46:130-8. 2003..We attempted to determine its contribution to the diagnosis of intracranial meningiomas... - Application of multi-detector row helical scanning to postmyelographic CTKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2, Shinkawa, Mitaka, Tokyo 181 8611, Japan
Eur Radiol 13:1438-43. 2003..Postmyelographic CT scans made using a multi-detector row helical CT system provide more information on the dural sac, nerve sleeves, and their contents than other imaging techniques... - MR digital subtraction angiography with three-dimensional data acquisition in the diagnosis of brain tumors: preliminary experienceKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Shinkawa, Mitaka, Tokyo, Japan
Magn Reson Imaging 22:149-53. 2004..Three-dimensional MR DSA using our technique is a useful adjunct to conventional MR imaging for the visualization of tumor hemodynamics and, in some cases, tumor-related vessels and mass effects... - Evaluation of MR cisternography of the cerebellopontine angle using a balanced fast-field-echo sequence: preliminary findingsKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2 Shinkawa, Mitaka, 181 8611 Tokyo, Japan
Eur Radiol 14:239-42. 2004..The bFFE sequence can be promising for MR cisternography in the diagnosis of cerebellopontine angle lesions... - Volume-rendered 3D display of MR angiograms in the diagnosis of cerebral arteriovenous malformationsK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Shinkawa, Mitaka, Tokyo, Japan
Acta Radiol 44:675-9. 2003..To determine whether application of a volume-rendered display of 3D time-of-flight (TOF) MR angiography could assist the diagnosis of cerebral arteriovenous malformations (AVMs)... - MR-angiogram-added surface anatomy scanning of superficial cerebral arteriovenous malformationsKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2, Shinkawa, Mitaka, Tokyo 181 8611, Japan
Eur Radiol 12:2330-4. 2002..33, and 2.67, respectively. The surgical findings also correlated well with the added images. Our technique can noninvasively demonstrate superficial AVMs along with the brain surface and provide information useful for planning surgery... - Visualization of cervical nerve roots and their distal nerve fibers by diffusion-weighted scanning using parallel imagingK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
Acta Radiol 47:599-602. 2006..To report a technique developed for visualizing cervical nerve roots and distal nerve fibers using diffusion-weighted magnetic resonance imaging employing parallel imaging... - Value of diffusion-weighted MR imaging in acute cervical cord injury as a predictor of outcomeKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2, Shinkawa, Mitaka, Tokyo, 181 8611, Japan
Neuroradiology 48:803-8. 2006..We analyzed the findings of diffusion-weighted (DW) imaging using the single-shot fast spin-echo sequence in acute cervical cord injury and evaluated the usefulness of this method for predicting the prognosis... - Cerebral CT angiography using a reduced dose of contrast material at high iodine concentration in combination with a saline flushK Tsuchiya
Department of Radiology, Kyorin University Faculty of Medicine, 6 20 2 Shinkawa, Mitaka, Tokyo 181 8611, Japan
Clin Radiol 63:1332-5. 2008..To determine whether cerebral computed tomography (CT) angiography with a 16-detector row system can be performed using a reduced dose of contrast material... - Three-dimensional MR digital subtraction angiography using parallel imaging and keyhole data sampling in cerebrovascular diseases: initial experienceKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2, Shinkawa, Mitaka, Tokyo, 181 8611, Japan
Eur Radiol 14:1494-7. 2004..Although inferior to conventional angiography, this technique can provide both anatomical and hemodynamic information of CVDs... - Demonstration of spinal cord and nerve root abnormalities by diffusion neurographyKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Tokyo, Japan
J Comput Assist Tomogr 32:286-90. 2008..We modified this technique using a fluid-attenuated inversion-recovery-based diffusion-tensor scan using parallel imaging and evaluated its feasibility in demonstrating spinal cord and nerve root abnormalities... - Diffusion tensor tractography of the lower spinal cordKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6 20 2, Shinkawa, Mitaka, Tokyo 181 8611, Japan
Neuroradiology 50:221-5. 2008..We employed a diffusion-tensor (DT) imaging technique involving a single-shot echo-planar sequence in combination with parallel imaging for tractography of the lower spinal cord and assessed the feasibility of this technique... - Hybrid of opposite-contrast magnetic resonance angiography of the brain by combining time-of-flight and black blood sequences: its value in moyamoya diseaseKazuhiro Tsuchiya
Department of Radiology, Kyorin University Faculty of Medicine, Tokyo, Japan
J Comput Assist Tomogr 34:242-6. 2010..We assessed the value of a new magnetic resonance angiography (MRA) technique named hybrid of opposite-contrast (HOP) MRA in the diagnosis of moyamoya disease... - Neurography of the spinal nerve roots by diffusion tensor scanning applying motion-probing gradients in six directionsKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine
Magn Reson Med Sci 6:1-5. 2007..Diffusion-weighted (DW) magnetic resonance (MR) imaging of the nerve roots and peripheral nerves has been reported. We applied a sequence similar to brain diffusion tensor (DT) tractography to such a technique and assessed its feasibility... - Preliminary evaluation of volume-rendered three-dimensional display of time-of-flight MR angiography in the diagnosis of intracranial aneurysmsK Tsuchiya
Department of Radiology, Kyorin University, Tokyo, Japan
Neuroradiology 43:633-6. 2001..3D volume-rendered MRA can be effectively added to conventional imaging techniques for diagnosis of intracranial aneurysms... - CT angiography covering both cervical and cerebral arteries using high iodine concentration contrast material with dose reduction on a 16 multidetector-row systemAkira Fujikawa
Department of Radiology, Japan Self Defense Forces Central Hospital, 1 2 24, Ikejiri, Setagaya, Tokyo, 154 8532, Japan
Neuroradiology 52:291-5. 2010.... - Postoperative assessment of extracranial-intracranial bypass by time-resolved 3D contrast-enhanced MR angiography using parallel imagingKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Tokyo, Japan
AJNR Am J Neuroradiol 26:2243-7. 2005..CONCLUSION: CE MRA by using the parallel imaging technique can increase image acquisition speed with sufficient image quality. This technique is at least equivalent to 3D-TOF MRA to evaluate the postoperative status of EC-IC bypass... - Diffusion-weighted MR imaging in acute spinal cord ischemiaAkira Fujikawa
Department of Radiology, Japan Self Defense Forces Central Hospital, 1 2 24 Ikejiri, Setagaya, 154 8532 Tokyo, Japan
Eur Radiol 14:2076-8. 2004..DW imaging of the spinal cord can contribute to the early detection of spinal cord vascular compromise... - Diffusion tractography of the cervical spinal cord by using parallel imagingKazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 161-8611, Japan
AJNR Am J Neuroradiol 26:398-400. 2005..By setting one region of interest in the cerebral peduncle and another in the entire cord on source images, tracts on each side were visualized. This method is promising for tractography of the cervical cord... - Comparison of MRI sequences to detect ventriculitisAkira Fujikawa
Department of Radiology, Japan Self-Defense Forces Central Hospital, 1-2-24, Ikejiri, Setagaya, Tokyo 154-8532, Japan
AJR Am J Roentgenol 187:1048-53. 2006..FLAIR imaging was superior to contrast-enhanced T1-weighted imaging for depicting ventricular wall abnormalities--a less common finding that also is suggestive of ventriculitis... - [Cerebral venous thrombosis]Yoshifumi Konishi
Department of Neurosurgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan
No To Shinkei 57:470-8. 2005 - Case report: spinal cord infarction demonstrated on diffusion-weighted MR imaging with a single-shot fast spin-echo sequenceAkira Fujikawa
Department of Radiology, Japan Self Defencse Forces Central Hospital, Tokyo, Japan
J Comput Assist Tomogr 27:415-9. 2003..SSFSE-DW imaging of the spinal cord may provide additional information for assessment of ischemic changes... - Choroid plexus papilloma of the third ventricle in the fetus. Case illustrationAkio Noguchi
Department of Neurosurgery, Kyorin University School of Medicine, Tokyo, Japan
J Neurosurg 100:224. 2004 - Diffusion-weighted magnetic resonance imaging of dural sinus thrombosisT Yoshikawa
Department of Radiology, University of Tokyo School of Medicine, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
Neuroradiology 44:481-8. 2002..Decrease of ADC value is presumed to reflect severe pathological conditions and indicate possible future development of infarction or hemorrhage... - Differentiation between solitary brain metastasis and high-grade glioma by diffusion tensor imagingK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6-20-2, Shinkawa, Mitaka, Tokyo 181-8611, Japan
Br J Radiol 78:533-7. 2005..Although FA values are not helpful in differentiating between the two groups, visual differences in FA values can allow the differentiation. Displacement of white-matter fibres is another finding suggestive of metastasis... - [Diagnostic imaging of intracranial lesions in AIDS]Kazuhiro Tsuchiya
Department of Radiology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan
No To Shinkei 56:291-9. 2004 - Diffusion-weighted MR imaging of Carmofur-induced leukoencephalopathyA Fujikawa
Department of Radiology, Kyorin University, 6 20 2, Shinkawa, Mitaka, Tokyo, 181 8611, Japan
Eur Radiol 11:2602-6. 2001..Our results suggest that diffusion-weighted MR imaging may be useful to differentiate carmofur-induced leukoencephalopathy from age-related periventricular hyperintensity... - MRI of influenza encephalopathy in children: value of diffusion-weighted imagingK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Tokyo, Japan
J Comput Assist Tomogr 24:303-7. 2000..Our purpose was to describe the MR findings of influenza encephalopathy and assess the value of diffusion-weighted imaging for its diagnosis... - Magnetic resonance imaging system for three-dimensional conformal radiotherapy and its impact on gross tumor volume delineation of central nervous system tumorsH Aoyama
Department of Radiology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Int J Radiat Oncol Biol Phys 50:821-7. 2001..We developed an MRI system for three-dimensional planning in radiotherapy. Its contribution on gross tumor volume (GTV) delineation of central nervous system (CNS) diseases was evaluated... - Impact of respiratory movement on the computed tomographic images of small lung tumors in three-dimensional (3D) radiotherapyS Shimizu
Department of Radiology, Hokkaido University School of Medicine, Sapporo, Japan
Int J Radiat Oncol Biol Phys 46:1127-33. 2000..We investigated the impact of respiratory movement on the free-breathing CT images of small lung tumors using sequential CT scanning at the same table position... - Diffusion-weighted MR imaging in multiple sclerosis: comparison with contrast-enhanced studyK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
Eur J Radiol 31:165-9. 1999..To assess the utility of cerebral diffusion-weighted MR imaging in the diagnosis of multiple sclerosis (MS) in comparison with contrast-enhanced T1-weighted imaging... - Japanese encephalitis - serial CT findings and neuropathology in an autopsy caseZ Kobayashi
Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
Clin Neuropathol 28:422-9. 2009..We discussed for the first time the correlation of CT and neuropathological findings in a patient with Japanese encephalitis... - Familial amyotrophic lateral sclerosis with posterior column degeneration and basophilic inclusion bodies: a clinical, genetic and pathological studyK Tsuchiya
Department of Laboratory Medicine and Pathology, Metropolitan Matsuzawa Hospital, Tokyo, Japan
Clin Neuropathol 20:53-9. 2001..Based on these clinical, genetic and pathological findings with a review of the literature, we concluded that our case was the first reported case of FALS with posterior column involvement and basophilic inclusion bodies... - A potent antiviral effect on hepatitis C viral dynamics in serum and peripheral blood mononuclear cells during combination therapy with high-dose daily interferon alfa plus ribavirin and intravenous twice-daily treatment with interferon betaY Asahina
Division of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Tokyo, Japan
Hepatology 34:377-84. 2001..Taken together, our data on HCV dynamics provide molecular insight into utilization of combination or twice-daily dosing regimens to increase rates of sustained viral eradication of HCV... - [The utility of coronary magnetic resonance angiography in children under six years of age with Kawasaki disease]A Takemura
Department of Radiology, Tokyo Teishin Hospital, Japan
Nihon Hoshasen Gijutsu Gakkai Zasshi 64:874-6. 2008..To follow up coronary arterial lesions due to Kawasaki disease (KD) using noninvasive magnetic resonance coronary angiography (MRCA), we studied a method to improve the quality of images in young children... - Distribution of cerebral cortical lesions in Pick's disease with Pick bodies: a clinicopathological study of six autopsy cases showing unusual clinical presentationsK Tsuchiya
Department of Laboratory Medicine and Pathology, Tokyo Metropolitan Matsuzawa Hospital, 2 1 1 Kamikitazawa, Setagaya Ku, Tokyo, 156 0057, Japan
Acta Neuropathol 102:553-71. 2001.... - A new MRI technique for demonstrating the surface of the brain together with the cortical veinsK Tsuchiya
Department of Radiology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan
Neuroradiology 41:425-7. 1999..This simple technique is useful for demonstrating brain surface structures, especially in patients from whom one plans to excise a lesion... - Computerized detection of intracranial aneurysms for three-dimensional MR angiography: feature extraction of small protrusions based on a shape-based difference image techniqueHidetaka Arimura
Department of Health Sciences, School of Medicine, Kyushu University, 3 1 1, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
Med Phys 33:394-401. 2006..The computer-aided diagnostic (CAD) scheme may be robust and useful in assisting radiologists in the detection of intracranial aneurysms for MRA... - Magnetic resonance imaging of lymphomatoid granulomatosis: punctate and linear enhancement preceding hemorrhageHiroyuki Miura
Fifth Department of Internal Medicine, Tokyo Medical University, 3 20 1, Chuo, Ami, Inashiki, Ibaraki 300 0395, Japan
Eur Radiol 13:2192-5. 2003..The diagnostic value of these lesions observed with contrast MR images is discussed. We consider that enhancing areas correspond to walls of small vessels affected by LG... - [Neuroradiological study of progressive multifocal leukoencephalopathy associated with acquired immunodeficiency syndrome by MR imaging including diffusion-weighted imaging]Ayumi Uchibori
Department of Internal Medicine and Neurology, School of Medicine, Kyorin University
Rinsho Shinkeigaku 44:531-6. 2004..Based on comparative assessment of these MR images, it was speculated that the PML lesion appeared to be constituted of three parts from the margin to the center: cytotoxic edema, vasogenic edema, and liquefied lesion such as necrosis... - [Imaging of Sturge-Weber syndrome: cranial CT and MR findings]Yasuhiro Nakata
Department of Radiology, Faculty of Medicine, University of Yamanashi
Nippon Igaku Hoshasen Gakkai Zasshi 64:210-5. 2004..A combination of findings of plain CT and MRI (including postcontrast MRI and MR venography) are useful for diagnosing SWS...