Linked Life Data

9173696

Source:http://linkedlifedata.com/resource/pubmed/id/9173696

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-6-2
pubmed:abstractText
Electron beam tomography (EBT) is a computed tomography technique with unique spatial and temporal resolution. The aim of the study was to establish and evaluate a protocol for the non-invasive visualization and detection of stenoses of the coronary arteries. Following phantom studies, 103 patients were investigated. Among these, 25 patients after coronary angioplasty (PTCA) were included in a prospective, blinded comparison to coronary angiography. After injection of contrast agent in a peripheral vein, 40 axial cross sections of the heart were acquired, triggered to the ECG (slice thickness 3 mm, 1 mm overlap, pixel size 0.29 x 0.29 mm). Three-dimensional reconstructions of the heart and coronary arteries were performed in the form of "shaded surface display," the results were compared to coronary angiography. In the reconstructions, the proximal and mid section of the LAD was visualized in 94% and 85%, image quality was reduced for the right coronary artery (89%/64%) and left circumflex (74%/54%), mainly due to movement artifacts. EBT displayed a sensitivity of 100% (9/9) for the detection of occlusions and high-grade restenoses in patients after PTCA, due to one false-positive result, specificity was 92% (12/13). Three PTCA patients could not be evaluated due to respiration artifacts. Contrast-enhanced electron beam tomography (EBT) permits the visualization of coronary arteries and the detection of stenoses and occlusions with high sensitivity and specificity.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0300-5860
pubmed:author
pubmed:issnType
Print
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
121-30
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
[Noninvasive coronary angiography with electron beam tomography: methods and clinical evaluation in post-PTCA follow-up].
pubmed:affiliation
Medizinische Klinik II mit Poliklinik, Friedrich-Alexander-Universität, Erlangen-Nürnberg.
pubmed:publicationType
Journal Article, English Abstract