Tissue Doppler imaging is a recently developed technique that allows direct measurement of regional or global systolic and diastolic myocardial motion velocities. Myocardial velocities may be recorded in the pulsed wave tissue Doppler (PWTD) or color tissue Doppler. Pulsed wave tissue Doppler appears to be relatively independent of preload and provides important information in various heart diseases. Technical basis, normal pattern and clinical utility of PWTD were reviewed in this article.