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目的:分析冠状动脉瘘的双源CT(DSCT)血管成像表现,并与冠状动脉血管造影(CAG)比较,评价其诊断价值。方法:回顾性分析13例经CAG确诊为冠状动脉瘘的患者,均行DSCT冠状动脉血管成像,其中10例进行了手术治疗。分析每例患者的DSCT表现,并与CAG及术后结果进行对照。结果:13例冠状动脉瘘DSCT血管成像均获得正确诊断,并可以清楚显示异常冠状动脉的起源、走行、汇入心腔或心外的准确解剖位置以及瘘口的大小和数量。DSCT诊断3例患者合并其他心脏畸形,1例并发感染性心内膜炎引起肺动脉栓塞。患者的DSCT有效辐射剂量(ED)为(2.9±1.1)mSv。结论:DSCT血管成像对先天性冠状动脉瘘有较高的诊断价值,并可发现伴随的其他病变,是无创性诊断本病的可靠方法。
Objective: To analyze the dual-source computed tomography (DSCT) angiography of coronary fistula and evaluate its diagnostic value by comparing with coronary angiography (CAG). Methods: Thirteen patients with coronary artery fistula diagnosed by CAG were retrospectively analyzed. All the patients underwent DSCT coronary angiography, of which 10 were undergone surgical treatment. The DSCT findings of each patient were analyzed and compared with CAG and postoperative results. Results: DSCT angiography of 13 cases of coronary artery fistula were correctly diagnosed, and the origin of coronary arteries and the origin of the abnormal coronary arteries and the exact anatomic location of the heart or heart were clearly shown. The size and number of the fistula were also clearly demonstrated. DSCT diagnosis of 3 patients with other cardiac malformations, 1 case of complicated endocarditis caused by pulmonary embolism. The patient’s DSCT effective radiation dose (ED) was (2.9 ± 1.1) mSv. Conclusion: DSCT angiography has a high diagnostic value for congenital coronary artery fistula, and other accompanying lesions can be found. It is a reliable method for noninvasive diagnosis of this disease.