CONGENITAL HEART MALFORMATION

The arterial canal carries blood from the pulmonary artery to the aorta during fetal life and normally closes within hours after birth. In certain cases, however, the canal remains open increasing blood flow into the pulmonary artery, causing increased pulmonary vascularity. 3D CT scan. The icon at the bottom-right indicates the image's perspective: A : anterior, P : posterior, R : right, L : left, F : foot (viewed from below), H : head (viewed from above).