BSA — m²
Continuity-equation AVA, indexed AVA, VTI ratio and velocity ratio
AVA = LVOT CSA × LVOT VTI / AV VTI, with AVA/BSA, the dimensionless VTI ratio, and the peak-velocity ratio.
Quick reference:↑ Aortic stenosis
cm
cm
BSA (from context)—m²
Enter LVOT diameter, LVOT VTI, AV VTI (CW) to calculate.
Quick tool: no study or demographics required. Values entered here are shared with other tools in this tab until New study.