| 曹新山,赵建农,罗银灯,蒲军.多层螺旋CT在冠状动脉搭桥术后的临床应用[J].中国医学影像技术,2006,22(8):1207~1209 |
| 多层螺旋CT在冠状动脉搭桥术后的临床应用 |
| Clinical application of coronary artery bypass grafts with multi-slice spiral CT |
| 投稿时间：2006-02-22 修订日期：2006-08-03 |
| DOI： |
| 中文关键词: 冠状动脉疾病 冠状动脉搭桥术 体层摄影术,X线计算机 冠状血管造影术 |
| 英文关键词:Coronary disease Coronary artery bypass grafts Tomography, X-ray computed Coronary angiography |
| 基金项目: |
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| 中文摘要: |
| 目的 评价多层螺旋CT(MSCT)在冠状动脉搭桥术后的应用价值。方法 对40例冠状动脉搭桥术后患者,共有搭桥血管93条(乳内动脉30条,大隐静脉63条)。对40例患者分别行螺旋CT增强扫描和选择性冠状动脉造影(SCA)检查。所有MSCT检查采用回顾性心电门控技术、分段数据采集方式和选择75％的时间相位窗,对扫描数据进行后处理,由两位富有经验的医师评估并与SCA结果对照。结果 所有近端桥血管及71.4%的远端搭桥血管通过MSCTA可显示,12条桥血管闭塞,66条通畅,13条有不同程度狭窄,1条远端桥血管狭窄并得到SCA证实,有4条假阳性,1条假阴性导致敏感性为94.5％,特异性为95.7%,阳性预测值80.4％,阴性预测值96.3％。结论 多层螺旋CT可作为一种可靠的检查手段用于冠状动脉搭桥术后的评估。 |
| 英文摘要: |
| Objective To assess the application of multi-slice spiral computed tomography (MSCT) in coronary artery bypass grafts. Methods A total of 40 patients with 93 coronary artery bypass grafts (internal mammary artery, 30; great saphenons vein, 63) underwent MSCTA and selective coronary arteriography (SCA). All CT examination were performed with retrospective ECG-gating, segment method with 75% R-R interval, deal with all datums, and CT findings were compared with SCA by two experienced doctors. Results All bypass grafts and 71.4% of the distal bypass anastomoses could be visualized by MSCTA; 12 bypass grafts occlusions, 66 unobstructed, 13 stenosis, and 1 distal bypass significant stenosis confirmed by SCA. Four false positive and one false negative findings resulted in sensitivity of 94.5%, specificity of 95.7%, positive predictive value of 80.4%, and negative predictive value of 96.3%. Conclusion Multi-slice spiral CT could be used as a reliable way to assess coronary artery bypass grafts. |
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