血流导向支架治疗颅内动脉瘤随访中CTA、时间分辨4D CE-MRA及DSA的评估：单例经验
Evaluation of CTA, time-resolved 4D CE-MRA and DSA in the follow-up of an intracranial aneurysm treated with a flow diverter stent: Experience from a single case.
作者信息
Kapsas Georgios, Budai Caterina, Toni Francesco, Patruno Francesco, Federica Marliani Anna, Leonardi Marco, Cirillo Luigi
机构信息
Department of Radiology, University Hospital of Alexandroupolis, Greece.
Department of Radiology, University of Bologna, Italy.
出版信息
Interv Neuroradiol. 2015 Feb;21(1):69-71. doi: 10.15274/inr-2014-10092.
Abstract
Endovascular treatment of giant, fusiform and dissecting aneurysms with flow diverter stents is becoming more and more popular. However, very few studies on the follow-up have been published. We describe a patient with a dissecting aneurysm of the right vertebral artery treated with flow diverter stent placement. The patient was followed up with CT angiography (CTA), time-resolved contrast-enhanced MR angiography (CE-MRA) and digital subtraction angiography (DSA). CTA had false negative results in two instances, whereas time-resolved CE-MRA and DSA were the most accurate in depicting the residual flow in the aneurysmal sac. However, in the case of DSA the demonstration of residual flow proved quite difficult and required a very thorough examination with oblique projections. Our 2.5-year experience with this patient led us to believe that time-resolved CE-MRA is a valuable tool in the follow-up of flow diverter-treated stents.
摘要
使用血流导向支架对巨大、梭形和夹层动脉瘤进行血管内治疗正变得越来越普遍。然而，关于随访的研究发表得很少。我们描述了一名接受血流导向支架置入术治疗的右椎动脉夹层动脉瘤患者。对该患者进行了CT血管造影（CTA）、时间分辨对比增强磁共振血管造影（CE-MRA）和数字减影血管造影（DSA）随访。CTA在两个病例中出现了假阴性结果，而时间分辨CE-MRA和DSA在描绘动脉瘤腔内的残余血流方面最为准确。然而，在DSA检查中，显示残余血流相当困难，需要用斜位投照进行非常彻底的检查。我们对该患者2.5年的经验使我们相信，时间分辨CE-MRA是血流导向支架治疗后随访的一种有价值的工具。
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