両側性同時頸動脈撮影法—特に前大脳動脈閉塞における診断的有意性

SIMULTANEOUS BILATERAL CAROTID ANGIOGRAPHY:Accurate diagnostic evaluation of anterior cerebral artery occulsion

I．緒言

　頸動脈写は一般に一側性に行なわれており，両側同時に行なうSimultaneous Bilateral Carotid Angiegraphy（以下SBCAと略）については，わずか2,3の欧米文献^1）2）に接するのみであり，臨床診断的には特に顧みられることなくすごされてきた。

　今回，われわれはこのSBCAを各種脳疾患患者に施行し，若干の新知見を得たが，特に前大脳動脈閉塞につきあらたなる診断的意義を有することを見いだしたのでここに紹介，提唱する。

Carotid angiography is, in general, carried out separately on each side, while reports of Simultaneous Bilateral Carotid Angiography (SBCA) have been rarely found in literatures.

It has been generally admitted this SBCA possessed the following abvantages: 1) a decrease in the neces-sary exposure and a reduction of procedure to carry out angiography, 2) comparison of circulation and vascular trees of both carotid system, 3) precise re-search after circulatory change in vascular malforma-tion and pressure effect caused by space taking mass.

Moreover, this method is disclosed to have a spe-cial diagnostic evaluation of anterior cerebral artery occlusion, whereas it excludes false occlussive phen-omen which occasionally takes place through circula-tory changes of cross flow depending on hemodynamic influence upon both anterior cerebral arteries.

In addition, investigations of intracerebral circula-tion in both cerebral injury and migraine attack, and changes of striatum area in apoplexy by seriogram of SBCA are discussed.