Please use this identifier to cite or link to this item:
Title: Non-circular orifice flowfields in valvular regurgitation
Authors: Green, Derek W. 
Myers, Jerry G. 
Anayiotos, Andreas 
Keywords: Biomechanics;Flow meters;Holes
Issue Date: 1995
Publisher: ASME
Source: ASME International Mechanical Congress and Exposition, 1995, San Francisco, United States
Abstract: The proximal flowfield (PFF) is a primary tool in quantifying valvular regurgitation when using Color Doppler Ultrasound (CDU) in-vivo. Regurgitant flow calculations are made using the proximal isovelocity surface area (PISA) method and the aliasing technique such that flow rate = V alias*(PISA). However, the actual PFF in non-circular orifices has not been extensively validated. In this study, the PFFs for circular and non-circular orifices are compared in-vitro by Laser Doppler Velocimetry (LDV) and CDU. This comparison defines the details of the PFF, and may prove useful in quantifying valvular regurgitation independent of orifice shape.
Rights: © ASME
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

Show full item record

Page view(s)

Last Week
Last month
checked on Nov 13, 2018

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.