Figure 1

Echocardiographic measurements. Schematic illustration of echocardiographic measurements from apical four-chamber view. EF, ejection fraction measured according to Simpson Biplane; EDV, end diastolic volume; ESV end systolic volume; MAPSE, mitral annular plane systolic excursion; GS, global strain; E and A denotes blood velocities over the mitral valve during diastole.