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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

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Published on: August 28, 2018

Detection of myocardial bridging by 64-row computed tomography angiography of the coronaries

Christopher Johansen1, Jacobo Kirsch, Philip Araoz

  • 1Department of Radiology, Mayo Clinic Graduate School of Medicine, 200 SW First Street, Rochester, MN 55905, USA. Johansen.christopher@mayo.edu

Journal of Computer Assisted Tomography
|June 4, 2008
PubMed

Insights

Electrocardiogram-gated 64-slice computed tomography effectively detects myocardial bridging, a congenital coronary artery condition. This noninvasive method shows promise for higher sensitivity compared to traditional catheter angiography.

Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • Myocardial bridging is a congenital condition where a coronary artery segment is encased by heart muscle.
  • Historically diagnosed via catheter angiography, its detection has limitations.

Purpose of the Study:

  • To evaluate the effectiveness of electrocardiogram-gated 64-slice multidetector computed tomography (MDCT) for diagnosing myocardial bridging.
  • To compare MDCT's diagnostic capability with traditional methods.

Main Methods:

  • Retrospective review of 167 patients undergoing coronary computed tomography angiography.
  • Analysis of myocardial bridging presence, location (American Heart Association classification), and association with body mass index and heart rate.

Main Results:

  • Myocardial bridging was detected in 49 out of 152 eligible participants (32%).
  • The mid-left anterior descending coronary artery (segment 7) was the most frequent site (69% of cases).
  • Body mass index and heart rate did not impact detection rates.

Conclusions:

  • Electrocardiogram-gated 64-slice MDCT is a feasible and noninvasive tool for detecting myocardial bridging.
  • This imaging technique may offer superior sensitivity for diagnosing myocardial bridging compared to catheter angiography.
Abstract

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