Linked Life Data

15143228

Source:http://linkedlifedata.com/resource/pubmed/id/15143228

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-5-14
pubmed:abstractText
Coronary angiography is increasingly performed with multi-detector row computed tomography (CT) in the clinical setting. Successful use of this method, however, depends on the radiologist's knowledge of its potential pitfalls and familiarity with methods for minimizing or avoiding them. To identify artifacts and other pitfalls that commonly degrade image quality and that could result in misinterpretation, contrast-enhanced coronary angiograms acquired with a multi-detector row CT scanner with four detector rows in 110 consecutive patients were analyzed. The problems identified were classified into four broad categories: (a) motion-related artifacts caused by cardiac, pulmonary, or other body motion; (b) beam-hardening effects caused by metallic implants, severe calcifications, or air bubbles in the pulmonary artery that obscured the underlying coronary vessel lumen; (c) structural artifacts produced by adjacent contrast material-filled structures and overlying vessels; and (d) artifacts that resulted from technical errors or limitations. The most frequently observed artifacts were those related to cardiac motion. The most effective methods for minimizing cardiac motion artifacts are (a) premedication with beta-blockers to maintain optimal heart rate during scanning and (b) optimal selection of the reconstruction window.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1527-1323
pubmed:author
pubmed:copyrightInfo
Copyright RSNA, 2004
pubmed:issnType
Electronic
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
787-800
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Pitfalls, artifacts, and remedies in multi- detector row CT coronary angiography.
pubmed:affiliation
Department of Diagnostic Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, South Korea.
pubmed:publicationType
Journal Article, Review