the echocardiographic parameters used in this study were left atrial dimension ( lad ) , left ventricular diastolic dimension ( lvdd ) , thickness of the interventricular septum ( ivs ) and the posterior wall of the left ventricle ( lvpw ) , diastolic descent rate of the mitral valve ( ddr ) , left ventricular ejection fraction ( ef ) , mean velocity of circumferential fiber shortening ( mvcf ) , and the ratio of ivs to lvpw ( ivs/lvpw ) .
C0225897
left ventricular
C0026264
mitral valve