Value of 256-slice CTA for evaluation of coronary artery fistula / 实用放射学杂志

ABSTRACT

Objective To investigate the clinical value of 256-slice CT angiography (CTA) in diagnosing coronary artery fistula(CAF).Methods A total of 18 patients with CAF were analyzed retrospectively.The raw data were transferred to the work station.Image reconstruction techniques were employed, including multiplanar reconstruction (MPR),curved planar reconstruction (CPR),maximum intensity projection (MIP) and volume render (VR).Results Coronary artery angiography showed fistula affluxed to the pulmonary artery in 5 cases,affluxed to the coronary sinus in 5 cases,affluxed to the right atrium in 3 cases,affluxed to the left atrium in 3 cases, affluxed to the right ventricle in 2 cases.The blood flow from abnormal vessels to pulmonary arteries was demonstrated in 5 patients,and injection sign or hyper-density of contrast material in the main pulmonary artery was seen.The tortuous vascular networks on the surface of the main pulmonary artery trunk were seen in 2 cases.Formation of aneurysm was seen in 3 cases.Conclusion 256-slice CTA can precisely show the detailed anatomy variations and heomodynamic information of CAF, and directly display the abnormal vessels with multiple image reconstruction techniques.