RCA originated from the left sinus of Valsalva in 3 cases; RCA originated from the proximal segment of LAD in 1 case; Conus coursed between the aortic root and pulmonary artery to the anterior wall of the heart in 1 case.

• 其中,3例RCA开口位于左冠窦,1例RCA开口起源于左前降支(LAD)近端,1例RCA分支圆锥支行走于主动脉和肺动脉之间到达心脏前壁。