Linked Life Data

2356461

Source:http://linkedlifedata.com/resource/pubmed/id/2356461

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1990-7-26
pubmed:abstractText
A new 3-French Doppler catheter has recently been developed for direct measurement of blood flow velocity within the vessel. In in-vitro studies Doppler and real flow measurements correlated strongly. To validate this method in-vivo, phasic flow measurements in the aorta ascendens of 11 narcotized Wistar rats using Doppler and an external electromagnetic flowmeters were performed. The individual stroke volume was varied over a wide range. High intraindividual correlations were found (r = 0.92-0.99). However, a considerable variation of the slope a of the regression lines was noted (a = 0.42-1.47). Thus, qualitative registration of phasic flow is possible and relative changes of flow can be determined with sufficient accuracy through intravascular Doppler measurements. Probably due to interindividual differences of the catheter position within the vessel, however, measurements of absolute flow volumes are unreliable in this setting.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0172-4614
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
91-4
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
[Validation of a Doppler catheter for intravascular flow measurement in vivo. A comparison with simultaneous electromagnetic flow measurement].
pubmed:affiliation
Medizinische Klinik III, Physiologisches Institut II der Eberhard-Karls-Universität Tübingen.
pubmed:publicationType
Journal Article, English Abstract