Right ventricular myocardial velocities and timing estimate pulmonary artery systolic pressure

RV-RA peak pressure drop is the most accurate non-invasive method for assessing PASP. Combining myocardial IVCV and IVRT can be used accurately in estimating PASP being more feasible than RV-RA drop. Such additional measurement might be important in patients follow-up when RV-RA gradient is difficult to obtain.