Comparison of the efficacy of conventional echocardiographic parameters in the diagnosis of significant coronary artery stenosis

Iranian Journal of Radiology : a Quarterly Journal Published by the Iranian Radiological Society
Xiao-Zhi ZhengJing Wu

Abstract

For diagnosis of significant coronary artery stenosis, the most accurate parameter among the conventional echocardiographic parameters remains unknown. To assess the diagnostic efficacy of conventional echocardiographic parameters in the diagnosis of significant coronary artery stenosis and their correlation with the percentage of stenosis considering conventional coronary angiography as gold standard. Seventy eight individuals were included in the study. The three echocardiographic parameters including the coronary sinus flow [flow (mL/minute)], the global left ventricular perfusion by dividing the coronary sinus flow by left ventricular mass [flow/LVM (mL/minute)] and the difference between the left ventricular mass at end diastole and peak systole using area-length calculation methods [LV (d-s) mass A-L] were assessed using receiver operating characteristic (ROC) analysis for their accuracy to distinguish between normal subjects and patients with significant (> 50%) coronary artery disease (CAD). Flow (mL/minute), flow/LVM (mL/minuteg) and LV (d-s) mass A-L all correlated significantly with the percentage of stenosis (r = -0.64, P < 0.001; r = -0.47, P < 0.001; r = -0.56, P < 0.001, respectively). With the use of the percent...Continue Reading

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