Fig. 4.9 Right parasternal location, long-axis reference view.

It is convention to display dorsally positioned structures on the right side of the screen.

From the right parasternal location, right-sided structures are closest to the transducer and therefore displayed at the top of the screen.

Key: RA, right atrium; RV, right ventricle; IVS, interventricular septum; LA, left atrium; Lv, left ventricle.