Dynamic Computed Tomography for the Evaluation of Cerebrovascular Disease
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概要
- 論文の詳細を見る
Dynamic computed tomography (DCT) was evaluated as a diagnostic indicator for chronic supratentorial ischemia in 50 cases with or without minor neurological deficits. Peak height (PH, the maximum value of the gamma fitted curve), peak time (PT, the time to PH from the start of DCT), transit time (TT, the time between the first and second inflection points of the gamma fitted curve), and their functional maps were analyzed. Cerebral angiography was then performed in all cases to identify stenotic or occlusive vascular lesions in major cerebral arteries. DCT clearly detected 12 of 13 occlusions of the internal carotid artery (ICA) or middle cerebral artery (MCA), although one ICA occlusion was masked by the contralateral MCA occlusion. However, DCT detected only severe ICA or MCA stenosis (more than 90%). Probably, stenotic lesions of less than 90% did not cause detectable hemodynamic compromise. DCT using PH, PT, and TT functional maps is a useful diagnostic method for hemodynamic changes in ischemic cerebrovascular disease, although bilateral lesions and less stenotic lesions (<90%) are difficult to detect.
- 日本脳神経外科学会の論文
- 1991-10-15
著者
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HAYASHI Seiji
Department of Earth and Planetary Sciences, Graduate School of Science, Nagoya University
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MORIWAKI Hiroshi
Department of Cerebrovascular Medicine, National Cardiovascular Center Hospital
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Terada Tomoaki
Department Of Neurological Surgery Wakayama Medical University
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Moriwaki Hiroshi
Department Of Cerebrovascular Medicine National Cardiovascular Center Hospital
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Hayashi Seiji
Department Of Anatomy And Neurobiology Kyoto Prefectural University Of Medicine
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Terada Tomoaki
Department Of Neurological Surgery Wakayama Medicaj University
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Komai Norihiko
Department Of Neurological Surgery Wakayama Medical College
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Nakamura Yoshinari
Department of Orthopaedic Surgery, Faculty of Medicine, Fukuoka University
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HYOTANI Genhachi
Department of Neurosurgery, Japanese Red Cross Society Wakayama Medical Center
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Hyotani Genhachi
Department Of Neurosurgery Japanese Red Cross Society Wakayama Medical Center
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Hyotani Genhachi
Department Of Neurological Surgery Wakayama Medical College
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NISHIGUCHI Takashi
Department of Neurological Surgery, Wakayama Medical College
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MIYAMOTO Kazuki
Department of Neurological Surgery, Wakayama Medical College
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Hayashi Seiji
Department Of Neurological Surgery Wakayama Medical College
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Nakamura Yoshinari
Department Of Neurosurgery Hidaka General Hospital:department Of Neurological Surgery Wakayama Medic
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Nakamura Yoshinari
Department Of Metal Science And Technology Kyoto University
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Miyamoto Kazuki
Department Of Neurological Surgery Wakayama Medical College
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Nishiguchi Takashi
Department Of Neurological Surgery Wakayama Medical College
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Moriwaki Hiroshi
Department Of Neurosurgery Hidaka General Hospital
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