This article reports on 15 patients with congenital coronary ateriovenous fistula which were first diagnosed by color Doppler echocardiogram.4 patients underwent surgery for the treatment and the results of the operations proved that the diagnosis was correct. The diagnosis for 1 patient was proved by coronary arteriogram

The coronary arteriovenous fistula we observed drained the blood into the right ventricle (6 patients)

right atria (4 patients)

left airia (2 patients)

and pulmonary artery (l patient). Color Doppler echocardiogram can show the origin

course and the end of coronary arterivenous fistula

and is thus a simple

reliable method for diagnosing coronary arterivenous fistula.