Abstract
The Value of Longitudinal Strain versus Coronary Angiography in Detection of Coronary Artery Disease
Highlights
Coronary artery disease is characterized by atherosclerosis in the epicardial coronary arteries
For the stenosis in left anterior descending artery, the current study showed that the longitudinal strain was a good predictor for presence of significant stenosis with a sensitivity of (93.8%), specificity (75%) and accuracy (91.7%) compared with coronary angiography
All images were taken at end expiration to avoid left ventricular (LV) apical foreshortening and reducing sector width and depth was used to increase frame rate for better image resolution
Summary
Coronary artery disease is characterized by atherosclerosis in the epicardial coronary arteries. The reduction in coronary artery flow may be symptomatic or asymptomatic, occurs with exertion or at rest, and culminate in myocardial infarction or angina, depending on obstruction severity and the rapidity of development [1]. Recent studies have suggested that decreased left ventricular (LV) compliance accompanies both coronary artery disease and acute myocardial infarction. Many facilities measure only left ventricular ejection fraction (LVEF) and left ventricular end-diastolic pressure (LVEDP) when assessing left ventricular dysfunction in patients with coronary artery disease (CAD) [2, 3]. Speckle-tracking echocardiography is a new noninvasive ultrasound imaging technique that allows for an objective and quantitative evaluation of global and regional myocardial function independently from the angle of insonation and from cardiac translational movements [4,5,6,7]
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