Aortic Valve Area Calculator
Estimate the Aortic Valve Area (AVA) using the continuity equation from echocardiography.
Input Parameters
Enter details for calculation.
Aortic Valve Area
Expert Tip
Normal AVA is 3-4 cm². Severe aortic stenosis is defined as AVA < 1.0 cm².
Calculation Methodology & Details
Formula
Continuity equation based on flow velocity ratios between LVOT and aortic valve.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How AVA is Calculated
Follow these steps to use this calculator:
Input Diameters
Left ventricular outflow tract diameter.
Input Velocities
LVOT and AV jet velocities from Doppler.
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ℹ️ About this Calculation
This clinical cardiovascular calculator provides precise hemodynamics assessment, ischemic heart disease risk stratification, electrophysiology calculations, and vascular disease evaluation based on ACC/AHA guidelines.
Variable Glossary
Vascular & ECG Data
Systolic/diastolic blood pressure, pulse rate, ECG intervals (QT/RR), or ankle-brachial Doppler pressures.
Hemodynamic Scores
Mean arterial pressure (MAP), corrected QTc interval, ASCVD 10-year risk percentage, or ejection fraction.
How to Calculate Step-by-Step
Step 1
Input hemodynamic vitals, lab values, or ECG measurement parameters.
Step 2
Select patient demographics, clinical comorbidities, or exercise test responses.
Step 3
Review calculated risk scores, hemodynamic parameters, and clinical classification recommendations.