成人冠状动脉瘘的CT血管成像特点

发布时间：2018-10-24 18:07

【摘要】：目的探讨冠状动脉瘘(CAF)的CT血管成像特征。方法分析45例接受DSCT(31例)及256iCT(14例)成像CAF患者的图像质量、辐射剂量及影像学特征。结果 45例CAF患者的CTCA图像质量均满足诊断需要,平均有效剂量为(12.92±3.73)mSv。CAF起自左冠状动脉23例、右冠状动脉13例、起自两者7例,起自右冠状动脉及支气管动脉1例,起自右冠状动脉及头臂干1例。CAF单一瘘管33例,多发瘘管12例。瘘入右心系统共40例,其中瘘入肺动脉31例、冠状窦4例、右心房3例、右心室1例、上腔静脉1例;瘘入左心系统5例,其中瘘入左心房2例、左心室2例、肺静脉1例。瘘血管可有纡曲、血管丛样、扩张或动脉瘤形成等表现。结论 CTCA检查可无创、准确地显示CAF的部位、走行及并发畸形,可作为临床诊断CAF的首选检查方法。
[Abstract]:Objective to investigate the characteristics of CT angiography of coronary artery fistula (CAF). Methods the image quality, radiation dose and imaging features of 45 CAF patients receiving DSCT (31 cases) and 256iCT (14 cases) were analyzed. Results the quality of CTCA images in 45 patients with CAF met the diagnostic needs. The average effective dose was (12.92 卤3.73) mSv.CAF from left coronary artery in 23 cases, right coronary artery in 13 cases, both from both in 7 cases, and from right coronary artery and bronchial artery in 1 case. 1 case originated from right coronary artery and trunk of head and arm, 33 cases with CAF single fistula, 12 cases with multiple fistula. There were 40 cases of fistula into the right cardiac system, including 31 cases of pulmonary artery fistula, 4 cases of coronary sinus, 3 cases of right atrium, 1 case of right ventricle, 1 case of superior vena cava, 5 cases of fistula into left atrium, 2 cases of left ventricle and 1 case of pulmonary vein. Fistula vessels can be tortuous, plexiform, dilatation or aneurysm formation and other manifestations. Conclusion CTCA can be used as the first choice for the diagnosis of CAF. It can accurately show the location, course and complicated malformation of CAF.
【作者单位】：天津市胸科医院放射科;
【基金】：天津市卫生局自然科技基金资助项目(2012KZ055)
【分类号】：R543;R816.2

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