Author/Authors :
Shakiba Madjid نويسنده , Arjmand Shabestari Abbas نويسنده Department of Radiology, Shahid Modarres Hospital, Shahid
Beheshti University of Medical Sciences, Tehran, Iran , Azma Roxana نويسنده Department of Pediatric Radiology, Shahid Beheshti
University of Medical Sciences, Mofid Children’s Hospital, Tehran,
Iran , Nourmohammad Armin نويسنده Department of Radiology, Shafa Yahyaian Hospital, Tehran
University of Medical Sciences, Tehran, Iran
Abstract :
Background Myocardial bridging (MB) is a congenital anomaly in
which a segment of a major epicardial coronary artery courses through
the myocardium. This anomaly can lead to myocardial ischemia,
arrhythmia, and even death. The effectiveness of coronary computed
tomographic angiography (CCTA) in the detection of MB and its
morphological features, and the accuracy of invasive coronary
angiography (ICA) in the evaluation of systolic compression have been
shown in some prior studies. Objectives The present study aimed to
evaluate the correlation between the depth and the length of MB as
determined using CCTA, and the degree of luminal narrowing of the
involved tunneled segment as calculated using the ICA. Patients and
Methods For this study, 109 consecutive patients diagnosed with
myocardial bridging using CCTA, and who had already undergone ICA, were
studied. The depth and length of the MB was determined in the CCTA,
while the degree of systolic compression was calculated in the ICA. The
correlation between the depth and length of the MB and the systolic
compression were then evaluated. Results The degree of systolic
compression was found to be correlated with the depth of the MB.
However, there was no correlation between the length of the MB and the
degree of systolic compression. Conclusion The systolic compression of
the MB was influenced by the depth of the tunneled segment, not by its
length.
