Is this PISA Calculator free to use?

Yes, PISA Calculator is 100% free to use online with no installation or account required.

How do I use the PISA Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Can I use PISA Calculator on mobile devices?

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

PISA Calculator — Free Online Tool

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PISA Calculator

Calculate Proximal Isovelocity Surface Area and EROA for valve regurgitation

Echocardiography Guidelines: The PISA method calculates regurgitant flow rate and Effective Regurgitant Orifice Area (EROA) from color Doppler echocardiography parameters. Enter radius, aliasing velocity, and peak velocity below.

Echocardiography Parameters Input

1. PISA Radius ($r$ in cm)

2. Aliasing Velocity ($V_a$ in cm/s)

3. Peak Regurgitant Jet Velocity ($V_{\max}$ in m/s)

Calculation Results

⚠️ Not medical advice. For cardiology, echocardiography, and clinical reference only. Valvular heart disease assessment and quantification must be supervised strictly by a qualified cardiologist or echocardiographer.

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