Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Multiple linear regression analysis examining the independent effect of the BWTT on transvalvular pressure gradients obtained by either echocardiographic or invasive evaluation. Independent variables: Aortic systolic blood pressure; Aortic valve area (estimated by the Gorlin formula); Aortic characteristic impedance; Systemic vascular resistance; Total arterial compliance; gender and height.
