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Acute Occlusion of the Middle Cerebral Artery:Early Eval with Triphasic Helical CT-Prelim Results Radiology 207:113-122, Na,D.G.,et al, 1998 See this aricle in Pubmed Article Abstract Thirty-five patients with acute ischemia underwent triphasic helical CT within 6 hours after symptom onset.Early arterial,perfusion,and delayed phase CT scans were obtained 18,30,and 80 seconds,respectively,after contrast material administration.Eighteen patients had proximal middle cerebral arterial occlusion diagnosed at magnetic resonance(MR)or digital subtraction angiography.Triphasic helical CT is useful for early diagnosis of acute proximal middle cerebral arterial occlusion and assessment of the ischemic zone.

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