Aortic peak & mean gradient (Bernoulli)

Peak pressure gradient across the aortic valve from Vmax. Enter the LVOT velocity too (if > 1 m/s) for the modified Bernoulli; enter a mean velocity for the mean gradient.

Shared values — enter once, reused everywhere

Height

Weight

Heart rate

bpm

Enter height and weight to derive BSA for indexed results (AVA index, cardiac index). Stays in your browser; nothing is sent anywhere.

Aortic valve Vmax

LVOT Vmax (optional)

For modified Bernoulli when > 1 m/s

Aortic mean velocity (optional)

From the traced envelope, for mean gradient

Peak gradient = 64 mmHg

Simplified Bernoulli

Worked steps

Peak gradient (simplified Bernoulli)
ΔP = 4v² = 4 × 4.0² = 64 mmHg

Reference: ASE/EACVI aortic stenosis quantitation (2017). Use the modified Bernoulli when LVOT velocity exceeds ~1 m/s; peak gradient is instantaneous, not the catheter peak-to-peak.

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