Left coronary artery fistula identified by color Doppler flow imaging.

Coronary artery fistula (CAF) is an abnormal communication between a coronary artery and a cardiac chamber, great vessel, or other vascular structures. The presence of the fistula is usually identified by angiography. In this paper, the diagnosis of left coronary artery-right ventricle fistula was made by color Doppler before angiography? and it was confirmed by surgery. Color Doppler flow imaging is a non-invasive method which can reveal the proximal dilatation, the course and the draining site of CAF.