Myocardial bridging is a condition in which a segment of major epicardial coronary artery (most in the left anterior descending) is tunneled within myocardium.

• 摘要正常之冠状动脉是走在心肌层上的表面，而心肌内冠状动脉过渡之血管，是指部份之冠状动脉走入心肌层内，最常发生在左前降动脉。