Key result
Tissue Doppler imaging and M-mode echocardiography correlated with LVEF even in patients with poor image quality (r=0.42 for Sm, P<0.05; r=0.61 for MAM, P<0.001).
Why the study?
Can mitral annulus velocity by TDI and mitral annulus motion by M-mode echocardiography reliably estimate LVEF in patients with poor image quality?
Population
110 patients undergoing simultaneous tissue Doppler imaging (TDI) and M-mode echocardiography
Design
Cross-sectional
Authors
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May aid LVEF estimation via mitral annulus parameters when 2D quality is poor; leaves open need for prospective validation before clinical adoption.
Observational (n=110)
Can mitral annulus velocity by TDI and mitral annulus motion by M-mode echocardiography reliably estimate LVEF in patients with poor image quality?
Effect estimate: r = 0.42 for mean Sm; r = 0.61 for mean MAM (in poor image quality)
p-value: p=<0.05 for mean Sm; <0.001 for mean MAM (in poor image quality)
TDI and M-mode echocardiography of the mitral annulus provide reliable estimates of LVEF even when standard 2D echocardiographic image quality is poor.
Yuda et al. (2006) conducted an observational in Left ventricular ejection fraction assessment (n=110). Tissue Doppler imaging and M-mode echocardiography was evaluated on Correlation of mean mitral annular peak systolic velocities (Sm) and mean mitral annular motions (MAM) with LVEF (r = 0.42 for mean Sm; r = 0.61 for mean MAM (in poor image quality), p=<0.05 for mean Sm; <0.001 for mean MAM (in poor image quality)). Tissue Doppler imaging and M-mode echocardiography correlated with LVEF even in patients with poor image quality (r=0.42 for Sm, P<0.05; r=0.61 for MAM, P<0.001).
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