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Measuring FFR: Measuring FFR: - summitMD.com

Measuring FFR: Measuring FFR: - summitMD.com

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Derivation of <strong>FFR</strong><br />

• <strong>FFR</strong> =<br />

• Flow =<br />

Myocardial Flow (Stenosis)<br />

Myocardial Flow (Normal)<br />

Pressure<br />

Resistance<br />

• at maximal hyperemia<br />

Flow ≈ Pressure<br />

Stanford

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