Fig. 5. Pitfall of RV short-axis evaluation: use different planes together.

Short-axis evaluation of RV requires extra care in basal slice contouring, and it is helpful to use different planes together. Most basal slice (red line) is selected using 4-chamber cine images (A, B), and endocardial contour is drawn in ED and ES phases. In ES phase, since valvular plane moves to apex (basal descent), endocardial contour that can be drawn in ED phase (C) may not be drawn in ES phase (E) at most basal slice. In addition, there may be different endocardial contour along valvular plane between ED (D) and ES phases (F). ED = end-diastolic, ES = end-systolic, RA = right atrium