16层计算机断层扫描与传统血管造影术评估冠状动脉支架通畅性的比较。
Comparison of 16-slice computed tomography with conventional angiography to evaluate coronary artery stent patency.
作者信息
Durur-Subasi Irmak, Kantarci Mecit, Durur-Karakaya Afak, Okur Adnan
机构信息
Yozgat State Hospital, Department of Radiology, Yozgat, Turkey.
Ataturk University, Faculty of Medicine, Department of Radiology, Erzurum, Turkey.
出版信息
Eurasian J Med. 2009 Apr;41(1):4-9.
OBJECTIVE
In this study, we evaluated the utility of 16-slice MDCT (multidetector computed tomography) to assess stent patency after coronary artery stenting.
MATERIALS AND METHODS
Retrospective ECG-gated CT-angiography using 16-slice MDCT was performed in 52 consecutive patients with coronary artery stents. Qualitative assessment of 61 coronary stent lumens by MDCT is reported, and the reasons preventing assessment were investigated.
RESULTS
All non-assessable stents were non-assessable due to partial volume effects and metal artifacts. To evaluate instent restenosis, conventional coronary angiography was performed on the 54 assessable stents in 48 patients, and the results were compared with the MDCT results. Based on the results of the conventional coronary angiography, MDCT correctly detected four in-stent restenosis.
CONCLUSION
Despite some limitations, 16-slice MDCT provides sufficient evaluations of some coronary stents, and can detect in-stent restenosis with high accuracy.
目的
在本研究中，我们评估了16层螺旋CT（多排螺旋计算机断层扫描）评估冠状动脉支架置入术后支架通畅性的效用。
材料与方法
对52例连续的冠状动脉支架置入患者进行回顾性心电图门控CT血管造影，使用16层螺旋CT。报告了通过MDCT对61个冠状动脉支架管腔的定性评估，并对妨碍评估的原因进行了调查。
结果
所有无法评估的支架均因部分容积效应和金属伪影而无法评估。为评估支架内再狭窄，对48例患者中54个可评估的支架进行了传统冠状动脉造影，并将结果与MDCT结果进行比较。基于传统冠状动脉造影的结果，MDCT正确检测出4例支架内再狭窄。
结论
尽管存在一些局限性，但16层螺旋CT对某些冠状动脉支架提供了充分的评估，并且能够高精度检测支架内再狭窄。
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