Clinical Resources

Mitral Valve Area (PHT)

Pressure Half-Time Method — Hatle Formula

Input Method

Pressure Half-Time (PHT)

ms

Deceleration Time (DT)

ms

Results

Pressure Half-Time —

Mitral Valve Area —

Severity —

Enter PHT or DT above

Reference

Hatle et al. 1979 — Noninvasive assessment of atrioventricular pressure half-time by Doppler ultrasound. Circulation 60(5):1096-104