Mitral Valve Area Calculator

Calculate mitral valve area from echo. Continuity equation.

Echo Doppler Data

Pht

PHT: The time required for the transmitral pressure gradient to decrease to half its peak value.

MVA

Mitral Valve Area2.20cm²MVA

Normal / Mild

Severity Index

ASE Stenosis Grading

Normal4.0 - 6.0 cm²

Moderate1.0 - 1.5 cm²

Severe< 1.0 cm²

Disclaimer: This tool is for informational purposes only and is not a substitute for professional medical advice.

About this calculator

Overview

MVA from PHT: 220/PHT. <1.5 severe.

Fun Facts

Formula: MVA = 220 / PHT (ms). Or continuity: MVA = LVOT area × LVOT VTI / MV VTI.