Conclusion:
In conclusion, our study is the largest study to date to compare a
multiparameter echo-Doppler assessment of RV systolic function with RVEF
determined by cardiac MR for validation. Our results suggest the
superiority of lateral RV free wall strain to other conventional
echocardiographic parameters for detecting RV systolic dysfunction.
Lateral RV free wall strain of <23.5% accurately detects
moderately reduced RVEF and lateral RV free wall strain <20.5
% accurately detects severely reduced RV systolic function.
Conflict of interest/Disclosures: None of the authors have any
disclosures. Informed, written consent was obtained from all individuals
for whom information is included in this article. The authors have
conformed to institutional guidelines and those of the American
Physiological Society.
Funding :
This research did not receive any specific grant from funding agencies
in the public, commercial, or not-for-profit sectors.