Fig. 4From: CT imaging features of atrioventricular shunts: what the radiologist must knowNormal anatomy of the AV canal. It is divided into a right canal with a tricuspid AV valve (circle) separating the right atrium and the right ventricle and a left canal with a bicuspid (mitral) AV valve (star) separating the left atrium and the left ventricle. The aortic valve (triangle) and the pulmonary valve (square) are located anterior of the AV valvesBack to article page