Key result
Pulsed-wave tissue Doppler measured systematically higher peak systolic myocardial velocities than color tissue Doppler (7.51 vs 5.54 cm/sec, P<0.001), overestimating true tissue motion.
Why the study?
Does color tissue Doppler compared to pulsed-wave tissue Doppler better approximate true tissue motion in echocardiography?
Population
71 patients
Comparison
Color tissue Doppler (CTD) echocardiography vs Pulsed-wave tissue Doppler echocardiography and…
Design
Cross-sectional
Authors
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PWTD overestimation warrants caution in velocity thresholds; cross-sectional data leaves open which method better approximates true motion.
Cross-Sectional (n=71)
Does color tissue Doppler compared to pulsed-wave tissue Doppler better approximate true tissue motion in echocardiography?
Mean Difference: 1.97
Absolute Event Rate: 7.51% vs 5.54%
p-value: p=<0.001
Color tissue Doppler measures numerically smaller tissue velocities than pulsed-wave tissue Doppler, primarily because PWTD overestimates true tissue motion, though both methods demonstrate good agreement and reproducibility.
Olsen et al. (2009) reported a cross-sectional. Pulsed-wave tissue Doppler (PWTD) vs. Color tissue Doppler (CTD) was evaluated on Peak myocardial velocity during systole (Sm) (MD 1.97, p=<0.001). Pulsed-wave tissue Doppler measured systematically higher peak systolic myocardial velocities than color tissue Doppler (7.51 vs 5.54 cm/sec, P<0.001), overestimating true tissue motion.
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