A modified myocardial performance (Tei) index based on the use of valve clicks improves reproducibility of fetal left cardiac function assessment

Objective To determine whether a modified myocardial performance index (Mod‐MPI) involving assessment of the movements (clicks) of the mitral valve (MV) and aortic valve (AV), improves intra‐ and interobserver agreement as compared to the previously reported method for MPI estimation. Methods The Mod‐MPI was recorded by two experienced operators in the left cardiac chambers of 25 normally grown fetuses using pulsed Doppler ultrasonography. The...