Myocardial bridging of the left anterior descending coronary artery

Case contributed by Dr Vougiouklis Nikos

Presentation

A 45 year-old patient underwent 64-slice computed tomography coronary angiography for suspected coronary disease.

Patient Data

Age: 45 years
Gender: Male

Myocardial bridging of the left  anterior descending  artery  displayed by  volume rendering  technique during diastole. Due to the intermyocardial course of the middle segment of LAD this particular segment is not imaged.

The curved planar reformatting CT angiography shows minimal stenosis (arrow) of LAD in the  intermyocardial segment during late diastole (segment 760 ms). The stenosis increases during systole (segment 404 ms).

The oblique axial section during systole reveals the compressed segment.

Case Discussion

Myocardial bridging is the intermyocardial course of a coronary artery. Milking is called the decrease of the diameter of this particular segment during systole. Myocardial bridging usually is found in the left anterior descending artery (LAD). This anatomic variant may alter the technique of coronary surgery or even cause complications.

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Case information

rID: 22836
Case created: 27th Apr 2013
Last edited: 29th Nov 2017
Systems: Vascular, Cardiac
Inclusion in quiz mode: Included

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