ABSTRACT

Coronary artery anomalies are defined as abnormalities in the origin, course, or distribution of coronary arteries. Traditionally the invasive technique of coronary angiography has been used to identify coronary anomalies. Three-dimensional coronary image reconstruction, from data obtained with magnetic resonance imaging or computed tomography (CT), is extremely helpful and allows easy anatomical interpretation of the coronary anomalies. The majority of all coronary anomalies are benign and coincidental findings during coronary angiography. One of the frequently occurring anomalies is left circumflex artery and right coronary artery arising from the right aortic sinus. Coronary artery fistulae usually involve the right coronary artery. The usual site of termination is in one or more low-pressure structures: right or left atrium, right ventricle, coronary sinus, pulmonary artery, or superior vena cava. Non-invasive CT scanning of the heart allows correct identification of coronary anomalies and three-dimensional reconstruction allows precise insight into the course of the coronary anomalies to identify whether these anomalies are malignant or benign.