States that the volume of blood that passes through the mitral valve should be equal to the volume that passes through the aortic valve. SV = systolic range; LVOT = left ventricular outflow tract; VTI = integral velocity time.
The detailed evaluation involves multiple key parameters that make up the equation that determines the area of the aortic valve (AVA). Since ultrasound is the gold standard for evaluating and diagnosing the severity of aortic stenosis.
The continuity equation involves 4 key elements:
TSVI CSA (A1)
LVOT VTI (V1)
AV CSA (A2)
VTI AV peak (V2)
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