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Surgical and Radiologic Anatomy
Published in: Surgical and Radiologic Anatomy 7/2018

01-07-2018 | Original Article

Contrast opacification difference of mural artery and the transluminal attenuation gradient on coronary computed tomography angiography for detection of systolic compression of myocardial bridge

Authors: Yuanliang Xie, Xiang Wang, Wei Xie, Faxiang Chen, Shubo Gao, Yikai Xu

Published in: Surgical and Radiologic Anatomy | Issue 7/2018

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Abstract

Purpose

Myocardial bridges (MB) have traditionally been considered a benign condition, but recent studies have demonstrated that the clinical complications can be dangerous. The transluminal attenuation gradient (TAG) obtained from coronary computed tomography angiography (CCTA) data (Retrospective ECG-triggered method) has been used in detecting significant stenosis in coronary artery caused by atherosclerosis. Contrast opacification difference (COD) was the parameters calculated as the change between attenuation of mural artery and the median attenuation of presumptive vessel segment; it was evaluated along with TAGstandardized (TAGs) and MB length for predicting MB with systolic compression (MB-SC) in patients diagnosed as MB in left anterior descending coronary artery (LAD) by CCTA or invasive coronary angiograph (ICA).

Methods

A total of 107 MB patients were divided into three groups based on systolic compression (SC), including: Group 1 (MB without SC); Group 2 (MB with mild SC); and Group 3 (MB with significant SC). ANOVA and Kruskal–Wallis analysis indicated TAGs showed the most significant differences for MB identification.

Results

This study revealed that TAGs decreasing and COD increasing were dominated in MB with significant SC.

Conclusions

COD had a higher sensitivity and a higher negative predictive value for detecting MB with significant SC than TAGs.
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Metadata
Title
Contrast opacification difference of mural artery and the transluminal attenuation gradient on coronary computed tomography angiography for detection of systolic compression of myocardial bridge
Authors
Yuanliang Xie
Xiang Wang
Wei Xie
Faxiang Chen
Shubo Gao
Yikai Xu
Publication date
01-07-2018
Publisher
Springer Paris
Published in
Surgical and Radiologic Anatomy / Issue 7/2018
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-018-2014-4

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