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PT  - JOURNAL ARTICLE
AU  - Badie, Behnam
AU  - Lee Jr., Fred T.
AU  - Pozniak, Myron A.
AU  - Strother, Charles M.
TI  - Intraoperative Sonographic Assessment of Graft Patency during Extracranial-intracranial Bypass
DP  - 2000 Sep 01
TA  - American Journal of Neuroradiology
PG  - 1457--1459
VI  - 21
IP  - 8
4099  - http://www.ajnr.org/content/21/8/1457.short
4100  - http://www.ajnr.org/content/21/8/1457.full
SO  - Am. J. Neuroradiol.2000 Sep 01; 21
AB  - Summary: Extracranial-intracranial (EC-IC) bypass may be necessary to facilitate treatment of unclippable posterior circulation fusiform aneurysms. Although intraoperative digital subtraction angiography (DSA) allows assessment of graft patency, this technique, because of difficulties inherent in performing selective catheterization and angiography in the operating room, has limitations. Duplex sonography, in contrast, is easily performed, and provides information regarding graft patency and blood flow direction during EC-IC bypass procedures. This latter information proved useful in determining the time of parent artery occlusion after two EC-IC bypass procedures performed for treatment of a fusiform midbasilar artery aneurysm.