Computed cerebral angiotomography (脳血管CT) によるMoyamoya病の診断について

概要

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Biplane computed cerebral angiotomography of Moyamoya disease is demonstrated in this paper. The specific features of Moyamoya disease by the computed cerebral angiotomography are as follows; none or poor visualization of the carotid fork and the abnormal cloudy region consisted of irregular tortuous or patchy high density vascular components extending from the basal cistern to the basal ganglia. Modified coronal CT and intravenous minimum dose bolus injection method seemed to be more useful for visualization of these features. Before carotid angiography we can suspected Moyamoya disease to find these features on CT image definitely. Cerebral angiography has been the only diagnostic method of Moyamoya disease. Instead of this invasive examination, computed cerebral angiotomography could be useful enough to detect Moyamoya disease conveniently and non-invasively. So that, we conclude that computed cerebral angiotomography is very useful method for screening and follow up study of Moyamoya disease.