Schematic illustration of the relationship between transmitral Doppler pattern and pressure behaviour in the left atrium and ventricle in diastole.

<p>LV: Left ventricle; LA: left atrium; E: peak early diastolic velocity; A: peak late diastolic velocity; DT: deceleration time; dP₁: atrioventricular pressure gradient; dP₂: ventriculoatrial pressure gradient; A_m: area of the mitral orifice; F₂: force applied to the blood; m: mass of the blood; a_d: deceleration of early mitral inflow.