Mehrnosh Toufan
1, Dina Ashouri
1, Behzad Mohammadi
1, Zahra Golmohammadi
1*1 Cardiovascular Research Center, Tabriz University of Medical Science, Tabriz, Iran.
Abstract
Tissue Doppler imaging (TDI) is a relatively new method that measures regional
myocardial velocities on the basis of color Doppler imaging. The aim of this study was to
investigate both systolic and diastolic parameters to diagnose coronary stenosis at rest.
We examined 73 patients without previous myocardial infarction who underwent
coronary angiography. Peak early and late diastolic velocities, systolic velocity, time to
peak systolic velocities were measured at rest. The patients were divided to those with
coronary artery disease (CAD) in the presence of stenosis of more than 50% in one
coronary artery and the control group. We found no significant differences between two
groups. Tissue Doppler imaging is not a reliable tool for diagnosis of CAD at rest.
Systolic and diastolic velocities by pulsed-wave tissue Doppler imaging were not
sensitive for diagnosing the coronary stenosis.