Intra- and interobserver agreement of measurements of RV volumes and function by 2D TTE using the proposed cone-pyramid formula (CPF).

Intra- and interobserver agreement of 2D TTE calculations using the proposed cone-pyramid formula (CPF) of RV end-diastolic volume (RV EDV), RV end-systolic volume (RV ESV) and RV ejection fraction (RV EF) in 25 randomly selected patients by re-measurements of the initial observer 1 and by a second observer 2.