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Heart Valve Area (Gorlin Formula)

Cardiac Output
L/min
Heart Rate
bpm
Diastolic Filling Period
s/beat cycle
Systolic Ejection Period
s/beat cycle
Mean Valve Gradient
mmHg
Mitral Valve Area:
cm2
Aortic Valve Area:
cm2
Tricuspid Valve Area:
cm2
Pulmonary Valve Area:
cm2

Calculation Formula

Heart Valve Area = CO/(K*HR*(DFP or SEP)*√MVG

Explanation

Catheter method to measure heart valve area.

K is the coefficient: 37.7 for mitral valve, 44.3 for other valves.

References

Research Paper Gorlin R, et al. Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I. Am Heart J. 1951;41(1):1-29.
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