| 秦海燕 张迪 韩东 王凯 苏贝尔 曹绍东 申宝忠.64 层螺旋CTA在冠状动脉搭桥术后桥血管评价中的临床应用[J].,2014,14(4):676-681 |
| 64 层螺旋CTA在冠状动脉搭桥术后桥血管评价中的临床应用 |
| Clinical Application of 64-slices spiral CTA on the Evaluation of the by PassGrafts Post-operative the Coronary Artery Bypass Grafts |
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| DOI： |
| 中文关键词: 冠脉旁路搭桥 计算机成像 血管造影 通畅性 64 层 |
| 英文关键词: Coronary artery by pass graft Compute tomography Angiography Patency 64 slices |
| 基金项目:黑龙江省教育厅资助项目（12521220）；黑龙江省卫生厅资助项目（2010-155） |
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| 中文摘要: |
| 目的：评价64 层螺旋CTA 在冠状动脉搭桥术后桥血管评价中的应用价值。方法：收集67 例冠脉搭桥术后64 层螺旋CTA
资料，回顾性分析其成像条件、心电编辑软件对图像质量的影响；薄层容积图像及VR、CPP、MIP等后处理方法对桥血管的显示情
况，并观察桥血管通畅状态。结果：67 例CTA 容积图像质量均满足诊断要求，其中15 例经茁受体阻滞剂控制心率；27 例经过心
电编辑软件后处理；检出正常桥血管107 支，占74.31 %(107/144)；异常静脉桥血管32 支，22.22 %(32/144)，包括近端吻合口尖角
状闭塞13 支，钙化斑块7 支，软斑块8 支，混合斑块1 支；远端吻合口狭窄3 支;正常动脉桥血管35 支，24.31 %(35/144)；异常动
脉桥血管5 支，3.47%(5/144)，包括闭塞内乳动脉桥血管4 支，远端吻合口狭窄1 支。上述多种后处理方法有助于多角度、多方位
显示桥血管近、远端吻合口、桥血管行程及其与毗邻结构关系、有无斑块及管腔狭窄程度等。结论：64 层螺旋CTA 是冠脉搭桥术
后评估桥血管状态准确、安全及简便的影像学检查方法。 |
| 英文摘要: |
| Objective:The aimof this study was to evaluate the value of 64-slices spiral CT angiography on the patency of the by
pass grafts after coronary artery bypass grafts(CABG) surgery.Methods:67 patients with CABG received 64-slices spiral CT angiography
using Aquilion 64-slice spiral CT-scanner in this study. We Retrospectively analyzed the affection of the scanning plans of CTA, and
electrocardiography edit software to image quality. The displaying of arterial and venous bypass graft on thinner slice volume image,
some restructures methods of VR, CPR, MIP and so on. Then we observed the main CTA signs of by pass grafts.Results:The quality of
all CTA volume images were accordance with the diagnosis. There were 15 patients with an irregular or fast heart rate despite 茁-blocker
administration which were not excluded from the study, and 27 patients' volume images were modified by electrocardiography edit soft
ware. In all patients, we found the normal bypass grafts 107, occupied 74.31% (107/144); abnormal venous grafts 32, occupied 22.22 %
(32/144), including 13 proximal anastomoses obstructed like cusp angle, soft plaque 8, mixing plaque1, calcified plaque 7 and distal
anastomoses stenosis 3. normal arterial grafts 35, occupied 24.31% (35/144); abnormal arterial grafts 5, occupied 3.47 % (5/144),
containing occluded internal mammary artery grafts 4 and proximal anastomoses stenosis 1. These post-processing methods as mentioned
above were benefited to display the bypass grafts' proximal and distal anastomoses, course and the relationship with adjacent structure,
plaque types and the lumens occlusion degree of by pass grafts.Conclusion:64-slices spiral CTA can be used practically in the
assessment of bypass grafts after CABG surgery. It is optimal modality for estimating the patency of bypass grafts and it is a fast,
effective, reliable method at present. |
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