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Fig. 1 | BMC Cardiovascular Disorders

Fig. 1

From: A hybrid approach for quantifying aortic valve stenosis using impedance cardiography and echocardiography

Fig. 1

Correlation between AVA determined using catheterization data and using the hybrid approach. Catheterization valve areas were calculated using the standard continuity equation; the AVA derived by the hybrid approach was calculated with the equation AVA = SV/transaortic VTI. (r = .76, p < .0001). Abbreviations: AVA; aortic valve area, SV; stroke volume, VTI; velocity-time integral

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