Document Detail

Comparison of quantitative coronary angiography with intracoronary ultrasound. Can quantitative coronary angiography accurately estimate the severity of a luminal stenosis?
MedLine Citation:
PMID:  18508852     Owner:  NLM     Status:  MEDLINE    
In this study we investigated the accuracy of monoplane and biplane quantitative coronary angiography in estimating the luminal dimensions, using intracoronary ultrasound as gold standard. Biplane angiography and intracoronary ultrasound were performed in 24 arterial segments. The end-diastolic intracoronary ultrasound frames were manually selected and segmented. In 2 end-diastolic X ray projections, quantitative coronary angiography was performed and a novel methodology was applied to register the segmented frames onto the processed angiographic images. The luminal areas determined by quantitative coronary angiography in 1 (monoplane) and 2 projections (mean) were compared with those determined by intracoronary ultrasound. The obtained correlation coefficients for the monoplane and mean estimations were 0.69 +/- 0.12 and 0.77 +/- 0.08, respectively. It would appear that by increasing the angle between the biplane projections, the correlation between intracoronary ultrasound and mean estimations improves. Our results provide evidence that orthogonal biplane angiography is more reliable and should be preferred to assess luminal dimensions.
Christos V Bourantas; Ann C Tweddel; Michail I Papafaklis; Petros S Karvelis; Dimitrios I Fotiadis; Christos S Katsouras; Lampros K Michalis
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2008-05-28
Journal Detail:
Title:  Angiology     Volume:  60     ISSN:  1940-1574     ISO Abbreviation:  Angiology     Publication Date:    2009 Apr-May
Date Detail:
Created Date:  2009-04-20     Completed Date:  2009-05-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0203706     Medline TA:  Angiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  169-79     Citation Subset:  IM    
Department of Academic Cardiology, University of Hull, Castle Hill Hospital, East Yorkshire, United Kingdom.
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MeSH Terms
Aged, 80 and over
Coronary Angiography / methods*
Coronary Stenosis / diagnosis*
Coronary Vessels / ultrasonography*
Follow-Up Studies
Image Processing, Computer-Assisted / methods*
Middle Aged
Reproducibility of Results
Severity of Illness Index
Ultrasonography, Interventional / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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