Successful nitinol stent implantation in a large coronary aneurysm: post-interventional patency assessment by magnetic resonance imaging
Successful nitinol stent implantation in a large coronary aneurysm: post-interventional patency assessment by magnetic resonance imaging
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DOI：
10.1007/s10554-005-9058-3
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发表时间：
2006-06-01
影响因子：
2.1
通讯作者：
Erbel, R
中科院分区：
文献类型：
--
作者：
Breuckmann, F;Nassenstein, K;Erbel, R
镍钛合金支架被认为表现出伪影发生率降低，并且可能适用于支架定位和支架内通畅性的磁共振成像（MRI）评价，即使是在冠状动脉尺寸的覆膜支架中。一名54岁男性患者在左回旋支冠状动脉（LCX）和左前降支冠状动脉（LAD）显著狭窄伴动脉瘤形成的旁边出现右冠状动脉（RCA）的大冠状动脉狭窄后动脉瘤。在将覆膜支架植入LAD和LCX后，将两个聚合物膜覆盖的镍钛合金覆膜支架置入RCA。RCA介入后7天的对照MR检查显示前动脉瘤成功闭塞，无介入后内漏，支架内有亮信号，表明支架通畅。因此，至少在排除可能的内漏方面，在冠状动脉瘤中植入镍钛合金支架后进行冠状动脉MRI对于介入后早期成像控制是可行的。
Nitinol stents are thought to exhibit reduced occurrence of artifacts and may be suitable for magnetic resonance imaging (MRI) evaluation of stent localization and in-stent patency even in coronary-sized stent grafts. A 54-year-old male patient presented with a large coronary post-stenotic aneurysm of the right coronary artery (RCA) beside significant stenoses of the left circumflex coronary artery (LCX) and the left anterior descending coronary artery (LAD) with aneurysm formation. After implantation of stent grafts to the LAD and LCX, two polymermembrane-covered nitinol stent grafts were placed into the RCA. A control MR examination 7 days following the RCA intervention showed successful occlusion of the former aneurysm, no post-interventional endoleak, and bright signal within the stent indicating stent patency. Thus, coronary MRI after nitinol stent implantation in coronary aneurysms is feasible for post-interventional early imaging control at least as far as the exclusion of possible endoleaks is concerned.