Linked Life Data

4064633

Source:http://linkedlifedata.com/resource/pubmed/id/4064633

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1986-1-8
pubmed:abstractText
In order to assess the capability for measuring blood flow in small vessels, the cardiac output was measured directly by either the microsphere reference sample technique or by obtaining blood samples simultaneously with the CT scan. The cardiac output was also measured in vivo by dynamic CT scanning and intravenous contrast as the indicator in an indicator dilution curve. Cardiac output was then calculated by two convolution back projection algorithms which optimized for either contrast or spatial resolution. The results of this study suggest that CT scanners are capable of accurately averaging intravascular changes in contrast density. Although it is good to optimize contrast resolution, the convolution back projection algorithm selected must have a pixel matrix which is much smaller than the vessel being analyzed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0730-4862
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
287-90
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:articleTitle
The critical importance of convolution function (algorithm) selection in the measurement of blood flow in small blood vessels by computed tomography scanning.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.