Linked Life Data

15947773

Source:http://linkedlifedata.com/resource/pubmed/id/15947773

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2005-6-10
pubmed:abstractText
We prospectively tested the diagnostic accuracy of Doppler transthoracic echocardiography in detection of coronary artery stenoses throughout the main coronary arterial tree. In all, 84 patients referred for diagnostic quantitative coronary angiography were studied. Coronary artery stenosis was identified with color Doppler as local spot of turbulence, and local flow velocity was measured using pulsed wave Doppler. Angiography showed significant stenoses (diameter reduction > 50%) in 33 patients. An abnormal maximal-to-prestenotic blood flow velocity ratio greater than 2.0 in subtotal stenoses, or the detection of collateral blood flow in the absence of normal antegrade flow in the case of total occlusion (N = 6), resulted in overall sensitivity of 82% and specificity of 92%. The sensitivity and specificity were, respectively, 73% and 92% for left anterior descending coronary artery, 63% and 96% for right coronary artery, and 38% and 99% for left circumflex coronary artery stenoses. Transthoracic echocardiography is a promising noninvasive technique to diagnose significant coronary artery stenoses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1097-6795
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
679-85
pubmed:dateRevised
2007-11-2
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Transthoracic Doppler echocardiography as a noninvasive tool to assess coronary artery stenoses--a comparison with quantitative coronary angiography.
pubmed:affiliation
Department of Clinical Physiology, Turku University Hospital, Turku, Finland.
pubmed:publicationType
Journal Article, Comparative Study, Controlled Clinical Trial