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

Christopher Johansen, Jacobo Kirsch, Philip A Araoz, Eric Williamson

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Introduction: Myocardial bridging is a congenital condition in which a section of coronary artery is surrounded by myocardium. Historically, myocardial bridging has been diagnosed by catheter angiography. This study investigates the effectiveness of electrocardiogram-gated 64-slice multidetector computed tomography in detecting myocardial bridging. Materials and Methods: We retrospectively reviewed 167 consecutive patients referred for coronary computed tomography angiography between January 4, 2005, and May 24, 2006. We recorded the number of coronary segments exhibiting myocardial bridging and described the location of each according to the American Heart Association classification system. Association of bridging with factors influencing image quality (body mass index and heart rate) was analyzed. Results: Of 152 eligible participants, 49 (32%) showed myocardial bridging. The mid-left anterior descending coronary artery (segment 7) was the most common location accounting for 69% of positive cases. Body mass index and heart rate did not affect detection rates. Conclusion: Electrocardiogram-gated 64-slice multidetector computed tomography is a feasible, noninvasive method of detecting myocardial bridging which may offer higher sensitivity than catheter angiography for this diagnosis.

Original languageEnglish (US)
Pages (from-to)448-451
Number of pages4
JournalJournal of Computer Assisted Tomography
Volume32
Issue number3
DOIs
StatePublished - May 2008

Fingerprint

Myocardial Bridging
Multidetector Computed Tomography
Coronary Vessels
Angiography
Electrocardiography
Body Mass Index
Catheters
Heart Rate
Computed Tomography Angiography
Myocardium

Keywords

  • Detection
  • Heart rate
  • MDCT
  • Myocardial bridging
  • Obesity

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Detection of myocardial bridging by 64-row computed tomography angiography of the coronaries. / Johansen, Christopher; Kirsch, Jacobo; Araoz, Philip A; Williamson, Eric.

In: Journal of Computer Assisted Tomography, Vol. 32, No. 3, 05.2008, p. 448-451.

Research output: Contribution to journalArticle

Johansen, Christopher ; Kirsch, Jacobo ; Araoz, Philip A ; Williamson, Eric. / Detection of myocardial bridging by 64-row computed tomography angiography of the coronaries. In: Journal of Computer Assisted Tomography. 2008 ; Vol. 32, No. 3. pp. 448-451.
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N2 - Introduction: Myocardial bridging is a congenital condition in which a section of coronary artery is surrounded by myocardium. Historically, myocardial bridging has been diagnosed by catheter angiography. This study investigates the effectiveness of electrocardiogram-gated 64-slice multidetector computed tomography in detecting myocardial bridging. Materials and Methods: We retrospectively reviewed 167 consecutive patients referred for coronary computed tomography angiography between January 4, 2005, and May 24, 2006. We recorded the number of coronary segments exhibiting myocardial bridging and described the location of each according to the American Heart Association classification system. Association of bridging with factors influencing image quality (body mass index and heart rate) was analyzed. Results: Of 152 eligible participants, 49 (32%) showed myocardial bridging. The mid-left anterior descending coronary artery (segment 7) was the most common location accounting for 69% of positive cases. Body mass index and heart rate did not affect detection rates. Conclusion: Electrocardiogram-gated 64-slice multidetector computed tomography is a feasible, noninvasive method of detecting myocardial bridging which may offer higher sensitivity than catheter angiography for this diagnosis.

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