Document Detail


Recurrent coronary artery stenosis: assessment with three-dimensional MR imaging.
MedLine Citation:
PMID:  15332244     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To assess the diagnostic value of three-dimensional coronary magnetic resonance (MR) angiography with fat saturation and navigator echo in the setting of restenosis after percutaneous transluminal coronary angioplasty (PTCA). MATERIALS AND METHODS: Thirty consecutive patients who had PTCA and were referred for elective coronary reangiography underwent MR imaging and coronary angiography. The pulse sequence was a cardiac triggered, single-slab, three-dimensional, gradient-echo sequence, employing a spin-echo navigator echo measurement to track the variation of the diaphragm during the scan. The following segments of the coronary arteries were included in this prospective study: left main coronary artery, proximal and middle left anterior descending, proximal and middle left circumflex, proximal and middle right coronary artery, and intermediate branch, if present. The quality of the MR images was graded from 0 to 5. RESULTS: In total, 221 coronary artery segments could be identified. Mean image quality was 3.3. Overall accuracy for segments with an image quality of grade 2 or more was 90%. To achieve a positive predictive value >70% for a significant stenosis/restenosis, only segments with quality >/=3 could be assessed, whereas an acceptable negative predictive value could be achieved for nearly all segments. CONCLUSION: Our preliminary data suggest that MR coronary angiography may be most helpful as a screening test in selected patients to exclude clinically relevant stenoses or to assess restenoses after PTCA or in patients in whose coronary angiography is relatively contraindicated.
Authors:
Markus F Müller; Martin Fleisch
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of magnetic resonance imaging : JMRI     Volume:  20     ISSN:  1053-1807     ISO Abbreviation:  J Magn Reson Imaging     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-08-27     Completed Date:  2004-12-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105850     Medline TA:  J Magn Reson Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  383-9     Citation Subset:  IM    
Copyright Information:
Copyright 2004 Wiley-Liss, Inc.
Affiliation:
Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden. markus.muller@vgregion.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Angioplasty, Transluminal, Percutaneous Coronary
Coronary Stenosis / diagnosis*,  therapy
Female
Humans
Imaging, Three-Dimensional*
Magnetic Resonance Angiography / methods*
Male
Middle Aged
Predictive Value of Tests
Prospective Studies
Recurrence
Sensitivity and Specificity

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


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