Bypass graft and native postanastomotic coronary artery patency: Assessment with computed tomography
Bypass graft and native postanastomotic coronary artery patency: Assessment with computed tomography
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DOI：
10.1016/j.athoracsur.2007.01.030
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发表时间：
2007-05-01
影响因子：
4.6
通讯作者：
Pepi, Mauro
中科院分区：
文献类型：
--
作者：
Andreini, Daniele;Pontone, Gianluca;Pepi, Mauro
背景资料。在以前的研究中，多探测器计算机断层扫描已被证明在冠状动脉搭桥术的评估中是有用的。我们研究了多层螺旋CT在检测移植物和自体吻合口后冠状动脉的通畅性和显著狭窄方面的准确性。应用16层螺旋CT对96例患者的216支血管进行检查，其中左乳动脉98支，右乳动脉8支，桡动脉8支，静脉102支。此外，还对吻合后冠状动脉进行了评估。不能保持40次S屏气的患者被排除在外。将CT数据与常规血管造影结果进行比较。在以节段为基础的模型中，对于搭桥术的总的可行性为98.1%(212/216)，对于吻合后的冠状动脉为93.1%(201/216)。吻合口后冠状动脉不可行的主要原因是检查的血管直径较小(
Background. Multidetector computed tomography has been shown to be useful in the evaluation of coronary artery bypass grafts in previous studies. We studied the accuracy of multidetector computed tomography in the detection of patency and significant stenosis of both grafts and native postanastomotic coronary arteries.Methods. Ninety-six patients with 216 grafts (98 left mammary artery, 8 right mammary artery, 8 radial artery, and 102 venous grafts) were investigated by 16-slice computed tomography. Native postanastomotic coronary arteries were also evaluated. Patients unable to maintain a breath hold of 40 s were excluded. Computed tomography data were compared with the results of conventional angiography.Results. On a segment-based model, the overall feasibility of computed tomography was 98.1% (212 of 216 grafts) for bypass grafts and 93.1% (201 of 216 segments) for postanastomotic coronary arteries. The leading cause of unfeasibility for postanastomotic coronary arteries was the small diameter of the examined vessel (