Aneurysms visualized by echocardiography. Echocardiographic parasternal short axis view reveals two fusiform aneurysms of the left anterior descending coronary artery. The proximal aneurysm (A1) measures 8.7 mm, and the distal (A2) measures 9.0 mm. The aorta (Ao) and main pulmonary artery (PA) are seen in cross section.