From the PSLA RVIT view, which tricuspid valve leaflets are visualized?

• A. Posterior and anterior
• B. Anterior and septal
• C. Septal and posterior
• D. Anterior and posterior

Answer: (A)

In the PSLA RVIT view, the imaging plane passes through the tricuspid valve in the right atrial–inflow direction, so the two leaflets opposite each other along the inflow tract are the ones that are most clearly visualized: the anterior and posterior leaflets. The septal leaflet sits close to the interventricular septum and is not well seen in this particular orientation, so it is not the leaflet pair you’d expect to visualize here. This is why the anterior and posterior leaflets are the ones described for this view.