Supratentorial Dynamic Computed Tomography for the Diagnosis of Vertebrobasilar Ischemic Stroke
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概要
- 論文の詳細を見る
rights: 本文データは日本脳神経外科学会の許諾に基づきCiNiiから複製したものであるDynamic computed tomography (CT) is an established method for the evaluation of per fusion in acute ischemic stroke, but is not frequently used to assess infratentorial ischemia. Eleven patients with vertebrobasilar ischemia underwent dynamic CT on admission and/or during the follow-up period. The time of appearance (TA) and time to peak (TTP) were mapped and differences in TA (ΔTA) and TTP (ΔTTP) between the bilateral middle cerebral artery and posterior cerebral artery (PGA) territories were calculated. Conventional angiography and brain imaging including CT and magnetic resonance imaging were also performed. The TA and TTP maps obtained within 48 hours after onset exhibited time delay in eight of nine patients in the bilateral PGA territories. ΔTA and ΔTTP were greater in patients with stenosis or occlusion of the bilateral vertebral arteries or the basilar artery, and in patients without collateral circulation via the posterior communicating arteries than in control subjects. Furthermore, TA and TTP normalized dramatically in patients with recanalization of the arteries. ΔTA and ΔTTP were also normalized. ΔTA and ΔTTP were negatively correlated with the time from onset to examination. Dynamic CT can provide important information in patients with vertebrobasilar ischemic stroke, and may allow the diagnosis of acute ischemia and monitoring of the course.
- 日本脳神経外科学会の論文
- 2004-03-15
著者
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NISHIJIMA Michiharu
Department of Neurosurgery, Aomori Prefectural Central Hospital
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ENDO Shunro
Department of Neurosurgery, Faculty of Medicine, University of Toyama
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KUWAYAMA Naoya
Department of Neurosurgery, University of Toyama
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HIRASHIMA Yutaka
Department of Neurosurgery, University of Toyama
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Hirashima Yutaka
Physiological Chemistry Faculty Of Pharmaceutical Sciences Teikyo University
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Kuwayama Naoya
Department Of Neurosurgery Faculty Of Medicine University Of Toyama
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UMEMURA Kimiko
Department of Neurosurgery, University of Toyama
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KUBO Michiya
Department of Neurosurgery, University of Toyama
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NAGAHORI Takeshi
Department of Neurosurgery of Takaoka Social Insurance Hospital
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Umemura Kimiko
Department Of Neurosurgery University Of Toyama
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Kubo Michiya
Department Of Neurosurgery University Of Toyama
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Kubo Michiya
Department Of Neurosurgery Toyama University
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Hirashima Yutaka
Departments Of Neurosurgery Toyama Medical And Pharmaceutical University
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Nagahori Takeshi
Department Of Electrical Engineering Keio University:(present Address) Opto-electronics Research Lab
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Endo Shunro
Department Of Neurosurgery Faculty Of Medicine University Of Toyama
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Nishijima Michiharu
Department Of Neurosurgery Aomori Prefectural Central Hospital
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Nishijima Michiharu
Department Of Neurosurgery Of Aomori Center Hospital
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Kuwayama Naoya
Department Of Neurosurgery Toyama Medical And Pharmaceutical University
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Kubo Michiya
Department Of Neurosurgery Saiseikai Toyama Hospital
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Hirashima Yutaka
Department Of Neurosurgery Toyama Medical And Pharmaceutical University
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Umemura Kimiko
Department Of Neurosurgery Faculty Of Medicine University Of Toyama
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Hirashima Yutaka
Department of Materials Science, Toyohashi University of Technology
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