Figure 1.

Transthoracic PLAX RV inflow imaging planes through the TV (9). If the interventricular septum and CS can be seen, the image will most likely demonstrate the septal ± anterior leaflets of the TV (panel A). If the septum and CS are not seen, it is likely to be the anterior and posterior leaflets that are imaged (panel B). Panel B also demonstrates the anatomical relationship between the TV and the anterior and inferior walls of the RV, the liver and the diaphragm. A indicates anterior leaflet of the TV; CS, coronary sinus; IVC, inferior vena cava; P, posterior TV leaflet; S, septal TV leaflet.