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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
719
|
| pubmed:dateCreated |
1988-2-10
|
| pubmed:abstractText |
Digital subtraction angiography (DSA) allows the degree of arterial patency or stenosis to be rapidly quantified. We have assessed the accuracy with which a single-plane DSA system is able to quantify area patency by densitometric and geometric methods. Arterial phantoms were designed to test for systematic error; intra-arterial DSA images of critical lesions of the carotid bifurcation and the lower abdominal and peripheral vessels were used to determine intra- and interobserver reproducibility. The densitometric method, which was more accurate than the geometric method, had a mean systematic error of up to 4% and a mean intra-observer variability of about 15% (coefficient of variation). We have identified the principal sources of inaccuracy and ways in which it may be reduced.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Nov
|
| pubmed:issn |
0007-1285
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
60
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1083-8
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:3318998-Arteriosclerosis,
pubmed-meshheading:3318998-Humans,
pubmed-meshheading:3318998-Radiographic Image Enhancement,
pubmed-meshheading:3318998-Reference Standards,
pubmed-meshheading:3318998-Reference Values,
pubmed-meshheading:3318998-Subtraction Technique,
pubmed-meshheading:3318998-Vascular Patency
|
| pubmed:year |
1987
|
| pubmed:articleTitle |
The accuracy of digital subtraction angiography for the quantification of atherosclerosis.
|
| pubmed:affiliation |
Department of Medical Physics, Bristol General Hospital.
|
| pubmed:publicationType |
Journal Article
|