Document Detail


Absolute flow measurements using pulsed Doppler US. Work in progress.
MedLine Citation:
PMID:  3515426     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Quantitative flow measurements were assessed in both laboratory and canine models using pulsed Doppler ultrasonography (US). A hydrodynamic model consisting of a Harvard pulsatile pump, a water bath, tubing, and a variable resistance reservoir was used to obtain absolute volumetric flow measurements. Parameters including angle of incidence, size of tubing, stroke volume, stroke rate, sample volume, and transducer frequency were changed independently. The effect of varying these parameters on the determination of absolute flow was analyzed. Absolute flow measurements using duplex US were performed in the canine aorta and femoral artery with reference to the electromagnetic flow probe. These data are presented, along with methods to reduce error in flow measurements that can be directly applied to quantitative estimates of blood flow in humans.
Authors:
J P Walter; J P McGahan; B M Lantz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Radiology     Volume:  159     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1986 May 
Date Detail:
Created Date:  1986-05-19     Completed Date:  1986-05-19     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  545-8     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Aorta / physiology
Blood Flow Velocity*
Dogs
Femoral Artery / physiology
Models, Structural
Rheology
Ultrasonography / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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