Right Ventricular Pre-ejection Myocardial Velocity and Myocardial Acceleration in Normal Fetuses Assessed by Doppler Tissue Imaging
Right Ventricular Pre-ejection Myocardial Velocity and Myocardial Acceleration in Normal Fetuses Assessed by Doppler Tissue Imaging
Kenji Harada, MD, Masaki Ogawa, MD, and Toshinobu Tanaka, MD, Akita, Japan
Myocardial acceleration during isovolumic contraction obtained from Doppler tissue imaging has been introduced as an index of right ventricular contractile function that is unaffected by the shape of the ventricle and loading conditions, but normal value of myocardial acceleration during isovolumic contraction and the effect of aging on the index are not known in normal fetuses.