Document Detail

Myocardial bridging as evaluated by 16 row MDCT.
MedLine Citation:
PMID:  18023550     Owner:  NLM     Status:  MEDLINE    
PURPOSE: The purpose of this study is to find out the prevalence, appearance and clinical symptoms of myocardial bridging (MB) by MDCT coronary angiography (CTA). MATERIALS AND METHODS: A total of 280 (50 females) consecutive patients followed with coronary artery disease or postoperative stent and bypass control, underwent CTA performed by 16-MDCT scanner between January 2006 and April 2006. Short axis multiplanar reformatted images were evaluated. MBs were classified as complete and incomplete bridges with respect to continuity of the myocardium over the tunneled segment of left anterior descending artery (LAD) in interventricular groove and the cut-off value is 1.3mm. Patients diagnosed with MB on CTA who had prior catheter angiography studies were re-evaluated for the presence of MB. RESULTS: One hundred and twenty MBs [98 (81.6%) on LAD, 2 (1.6%) on diagonal branch, 11 (9.1%) on obtuse marginal, 4 (3.3%) on right coronary artery, 5 (4.1%) on ramus intermedius artery] were detected in 108 (38.5%) patients. Eighty-five (70.8%) of bridged segments in 79 (28.2%) patients were complete and the rest [35 (29.2%) in 34 (12.1%) patients] were incomplete. In 12 patients two MBs (either on different arteries or on the same artery) were detected. The length of bridged segments in patients with complete and incomplete MBs varied between 4-50.9mm (mean 18mm) and 4-37.3mm (mean 13.6mm), respectively, and the depth of myocardium over the artery ranged between 1-6.4mm (mean 2.3mm) and 1-1.2mm (mean 1mm), respectively. Thirty (27.7%) out of 108 patients, in whom MB was detected on CTA, were found to have correlative catheter angiography studies, retrospectively and MB was detected only in 4 (13.3%) out of 30 patients. CONCLUSION: MDCT coronary angiography is a non-invasive, efficient method in the diagnosis of MB avoiding the procedural risks that catheter angiography carries. MDCT coronary angiography allows direct visualization of the bridge itself and may thus give the opportunity to differentiate between complete and incomplete myocardial bridges.
Murat Canyigit; Tuncay Hazirolan; Musturay Karcaaltincaba; Merve Gulbiz Dagoglu; Deniz Akata; Kudret Aytemir; Ali Oto; Ferhun Balkanci; Erhan Akpinar; Aytekin Besim
Publication Detail:
Type:  Journal Article     Date:  2007-11-26
Journal Detail:
Title:  European journal of radiology     Volume:  69     ISSN:  1872-7727     ISO Abbreviation:  Eur J Radiol     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2009-01-22     Completed Date:  2009-05-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106411     Medline TA:  Eur J Radiol     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  156-64     Citation Subset:  IM    
Hacettepe University, Faculty of Medicine, Department of Radiology, Sihhiye, 06100 Ankara, Turkey.
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MeSH Terms
Aged, 80 and over
Coronary Angiography / methods*
Middle Aged
Myocardial Bridging / radiography*
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed / methods*
Young Adult

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