How To Calculate Deceleration Time Echo. Echo can calculate this pressure by adding the peak systolic tricuspid regurgitation velocity and right atrial pressure (rap). The deceleration time (dt) is the time from the v max to where the velocity is equal to zero.

15 cardiac cycles with nonlinear deceleration slopes and fusion of early and late mitral flow velocity were excluded from the analysis. The mitral valve area is equal to 759 divided by the deceleration time. Refer back to our prior blog that explains how to obtain these values.