目的:尽管前几代多层计算机断层扫描(CT)被证明可以准确检出移植血管桥梗阻性疾病,但是冠状动脉疾病的进展是冠状动脉搭桥术后缺血性症状的更常见原因。采用64层CT检测冠状动脉搭桥术后的有症状患者的移植血管和自体冠状动脉,了解其诊断价值。方法和结果:用64层CT检测52例冠状动脉搭桥术后10±5年的有症状患者。 PURPOSE: Although previous generations of multi-slice computed tomography (CT) have demonstrated the ability to accurately detect transplanted vascular bridge obstructive disease, the progression of coronary artery disease is the more common cause of ischemic symptoms after coronary artery bypass surgery. 64-slice CT was used to detect the grafted vessels and autologous coronary arteries in symptomatic patients after coronary artery bypass grafting, so as to understand its diagnostic value. Methods and Results: Fifty-two symptomatic patients of 52 patients after coronary artery bypass grafting 10 ± 5 years were examined by 64-slice CT.