Key result
Tissue Doppler echocardiography measurement of myocardial performance index correlated highly with conventional pulse Doppler in healthy subjects (r=0.94) and DCMP patients (r=0.95, P<0.0001).
Why the study?
Does pulsed-wave tissue Doppler echocardiography accurately measure the myocardial performance index compared to the conventional pulse Doppler method in normal subjects and patients with dilated cardiomyopathy?
Population
15 patients with dilated cardiomyopathy (DCMP) and 15 healthy subjects (total n=30)
Comparison
Measurement of myocardial performance index… vs Measurement of MPI using conventional pulse…
Design
Cross-sectional
Authors
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Tissue Doppler may offer practical MPI alternative; extends validation in DCMP but leaves open outcome impact before practice change.
Cross-Sectional (n=30)
Does pulsed-wave tissue Doppler echocardiography accurately measure the myocardial performance index compared to the conventional pulse Doppler method in normal subjects and patients with dilated cardiomyopathy?
Effect estimate: r = 0.94 to 0.95
p-value: p=<0.0001
Pulsed-wave tissue Doppler echocardiography is a reliable method for measuring the myocardial performance index, showing excellent correlation with the conventional pulse Doppler method in both healthy individuals and patients with dilated cardiomyopathy.
Tekten et al. (2003) conducted a cross-sectional in Dilated cardiomyopathy (DCMP) (n=30). Tissue Doppler echocardiography (TDE) vs. Pulse Doppler method was evaluated on Correlation between MPI by TDE and conventional MPI (r = 0.94 to 0.95, p=<0.0001). Tissue Doppler echocardiography measurement of myocardial performance index correlated highly with conventional pulse Doppler in healthy subjects (r=0.94) and DCMP patients (r=0.95, P<0.0001).
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