Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-7-18
pubmed:abstractText
Coronary arteriogram of 34 patients who underwent percutaneous transluminal coronary angioplasty (PTCA) were evaluated visually and by computer-assisted analysis, that employed an edge detection method and cine-videodensitometry. The results of visual estimation were in general agreement with those of computer-assisted analysis for determination of percent area of stenosis in severe stenosis, and percent diameter of stenosis in slightly stenotic lesions. Before PTCA, the findings obtained by densitometry agreed with those using the edge detection method. However, after PTCA, the results were significantly different. This discrepancy may have been due to asymmetric morphologic changes in the luminal cross sectional area immediately after PTCA, which could not be assessed by the edge detection method in a single-plane view. Through these studies it was concluded that the densitometry is most useful for evaluating the effects of PTCA.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0452-3458
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
N
pubmed:pagination
255-60
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
[Evaluation of coronary arterial stenosis before and after PTCA: visual estimation versus computer-assisted analysis].
pubmed:affiliation
Second Department of Medicine, Kyoto Prefectural University of Medicine.
pubmed:publicationType
Journal Article, English Abstract