Objective To explore the value of coronary computed tomography angiography (CTA) in the diagnosis of coronary artery fistula (CAF) by retrospective analysis of images obtained from multi-slice CT. Methods Retrospectively collected coronary CTA images from Jiande First People's Hospital and Jinhua Municipal Central Hospital from January 2014 to December 2022.Image post-processing was performed using maximum intensity projection,volume rendering,curved planar reconstruction,and multiplanar reconstruction.The study analyzed the origin and number of feeding arteries of CAF,the drainage endpoint of CAF,the maximum diameter of the CAF fistula,the presence of aneurysm formation,the maximum diameter of the aneurysm,and the presence of thrombus formation.Results The feeding arteries of CAF were predominantly found in the left anterior descending artery(66.88％),with 115 cases having a single feeding artery.The drainage endpoint of CAF was most commonly the pulmonary artery(79.62％),with 153 cases having a single drainage endpoint.The maximum diameter of the fistula in cases with multiple feeding arteries was larger than that in cases with a single feeding artery[3.05(2.3,3.98)mm VS. 2.50(1.70,3.70)mm],which was statistically significant.The maximum diameter of the fistula in cases with vascular drainage endpoints was larger than that in cases with cardiac chamber drainage endpoints[2.80(2.10,3.80)mm VS.1.80(1.45,4.17)mm],and the difference was statistically significant.18 cases of CAF were combined with aneurysmal dilatation of the fistula,with a diameter of approximately(13.03±8.14)mm,and 2 cases were accompanied by thrombus formation within the aneurysm.Conclusion CAF has typical CT imaging features,which can be employed comprehensively to assess the origin,endpoint position,and the presence of aneurysm,playing an important role in clinical diagnosis and evaluation.
万方数据
维普
