echocardiographic measurements of the left ventricular dimensions and wall thicknesses at end diastole and end systole , aortic root and left atrial dimensions , mitral valve e-f slope , left ventricular ejection fraction , percent fractional shortening of the left ventricular internal dimension , estimated left ventricular mass and percentage systolic thickening of the ventricular septum and left ventricular free wall were obtained in 105 normal subjects ranging from one day to 23 years of age .
C0026264
mitral valve
C0225897
left ventricular