Balloon test occlusion of internal carotid artery: Angiographic findings predictive of results

• 作者: Akio Hiwatashi Hiroshi Honda Kazufumi Kikuchi Koji Yamashita Osamu Togao Takashi Yoshiura
• 来源期刊: 世界放射学杂志：英文版（电子版）
• 学科: 医学
• 关键词: BALLOON TEST OCCLUSION Cross flow Circle of WILLIS Anterior CIRCULATION POSTERIOR CIRCULATION
• 年，卷（期）: 2014,（8）
• 页码范围: 619-624
• 页数: 6页
• 分类号: R543.4

摘要

AIM: To reveal angiographic findings to predict the re-sult of balloon test occlusion(BTO).METHODS: The cerebral angiograms of 42 consecu-tive patients who underwent cerebral angiography in-cluding both the Matas and Allcock maneuvers and BTO were retrospectively analyzed. Visualization of the an-terior cerebral artery(ACA) and the middle cerebral ar-tery(MCA) by the cross flow on the tested side during the Matas or Allcock maneuver was graded on a 5-point scale. Circle of Willis(COW) anatomy with respect to the presence/absence of a collateral path to reach the tested internal carotid artery(ICA) was classified intofour categories. A univariate logistic analysis was used to analyze the associations between each angiographic finding and the BTO result. Sensitivity, specificity, accu-racy, positive predictive value, and negative predictive value for each finding were calculated. RESULTS: Five patients(12%) were BTO-positive and the remaining 37 patients(88%) were BTO-negative. Visualizations of the ACA and MCA as well as the COW anatomy were significantly associated with the BTO re-sult(P = 0.0051 for ACA, P = 0.0002 for MCA, and P 【 0.0001 for COW anatomy). In particular, good MCA vi-sualization and the presence of an anterior connection(collateral path to the tested ICA from the contralateral ICA via the anterior communicating artery) in the COW were highly predictive for negative BTO(negative pre-dictive value = 100% for both).