Global Longitudinal Strain

**Definition:** Global longitudinal strain (GLS) is a measure of ventricular function derived from 2-dimensional echocardiographic images by quantifying the relative length change in myocardial length between end-diastole and end-systole. GLS is used to predict cardiovascular outcomes and has been proposed to be a better measure of cardiac dysfunction than VENTRICULAR EJECTION FRACTION.

**Tree numbers:** - G09.330.380.375