论文部分内容阅读
目的探讨冠状动脉瘘(coronary artery fistula,CAF)的双源CT影像学表现和诊断价值。方法回顾性分析经手术或临床证实的7例CAF患者的双源CT资料,对获得的数据进行容积再现(VR)、多平面重组(MPR)、最大密度投影(MIP)、曲面重组(CPR)等后处理,分析CAF的起源、走行及引流部位。结果冠状动脉肺动脉瘘4例,分别为左、右冠状动脉肺动脉瘘2例,右冠状动脉及左前降支肺动脉瘘各1例,均于肺动脉主干表面形成迂曲、明显强化的血管网,其中3例可见典型“射血征”;冠状动脉左房瘘2例分别为无冠状动脉窦发出的血管及左回旋支发出的侧支血管参与供血;右冠状动脉左室瘘1例,继发左室扩大,主动脉增宽。7例中6例可见汇入瘘口前瘘血管的瘤样扩张。结论双源CT扫描获得的横断位图像,结合多种图像后处理技术可以清晰显示冠状动脉的起源、走行和终止位置,对CAF的诊断有重要价值。
Objective To investigate the dual-source CT findings and diagnostic value of coronary artery fistula (CAF). Methods The double-source computed tomography (CT) data of 7 patients with CAF confirmed by surgery or clinic were retrospectively analyzed. Volumetric reconstruction (VR), multiplanar reconstruction (MPR), maximum density projection (MIP), surface reconstruction (CPR) After treatment, analysis of the origin of CAF, walking and drainage site. Results 4 cases of coronary artery pulmonary fistula, left and right coronary artery in 2 cases of pulmonary fistula, right coronary artery and left anterior descending pulmonary fistula in 1 case, both in the main pulmonary artery surface tortuous and significantly enhanced vascular network, of which 3 cases Can be seen typical “ejection ejection ”; 2 cases of coronary artery left atrial fistula were no coronary sinus issued by the blood vessels and the collateral vessels of the left circumflex artery involved in blood supply; right coronary artery left ventricular fistula in 1 case, secondary to left Room expansion, aortic widening. In 7 cases, 6 cases showed tumor-like dilatation of the anterior fistula. Conclusion The cross-sectional images acquired by dual-source CT scan combined with multiple image postprocessing techniques can clearly show the origin, migration and termination of coronary arteries, which is of great value in the diagnosis of CAF.