Aortic Valve Area Calculator

Aortic Valve Area (AVA) Calculator

Formula (Continuity Equation)

AVA = (CSA_LVOT × VTI_LVOT) ÷ VTI_AV

Where CSA_LVOT = π × (LVOT Diameter ÷ 2)²

Input Parameters

Enter left ventricular outflow tract diameter in centimeters
Enter velocity time integral at LVOT in centimeters
Enter velocity time integral at aortic valve in centimeters

Results

Calculated AVA
— cm²
CSA LVOT
— cm²
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