Journal Article Acute rheumatic fever Carditis E/A, E wave/A wave ratio E/e‘, mitral flow E wave velocity/lateral annular e‘ wave velocity by TDI Lat a‘, lateral annular a‘ wave velocity by TDI (cm. sec) Lat e‘, lateral annular e‘ wave velocity by TDI (cm. sec) Left ventricular diastolic function Left ventricular systolic function MVA vel, mitral valve flow A wave velocity (cm. sec) MVAD, mitral valve A wave duration (ms) MVDT, mitral valve deceleration time (ms) MVE vel, mitral valve flow E wave velocity (cm. sec) Polyarthralgia Polyarthritis Rheumatic heart disease Sickle cell disease TDI, tissue doppler imaging Tissue doppler imaging e‘/a‘, e‘ wave/a‘ wave ratio