Figure 1. RVOT can be thought of as a cylinder that wraps around LVOT. RVOT courses anterior to the LVOT, from a rightward inferior to a leftward superior direction, such that the pulmonary valve lies to the left and anteriorly to the aortic valve. The pulmonary annulus is cephalad to the aortic annulus thus the structure immediately anterior to the aortic valve, specifically the right coronary cusp and part of the left coronary cusp, is the posterior muscular infundibular portion of the RVOT.