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A myocardial muscle bridge spans a segment of a major epicardial coronary artery that is located in the myocardium. This anatomic configuration can be responsible for angina pectoris, arrhythmias or even death. The current reference standard for diagnosis is conventional x-ray coronary angiography showing systolic compression of an epicardial vessel and the typical angiographic “milking effect. ” We report the case of a patient with myocardial bridging on the left anterior descending artery, in whom a combination of noninvasive high resolution display of the coronary artery lumen, visualization of the myocardium and functional assessment of blood flow during dobutamine stimulation by cardiovascular magnetic resonance imaging was performed. In myocardial bridging, a segment of a major epicardial coro-nary artery, the “tunnelled artery, ” is located intramurally in the myocardium (1). Usually this does not give rise to overt symp-toms, and patients are rarely referred for coronary angiography. Therefore, the incidence of myocardial bridging found varies consistently between angiographic (0.5–2.5%) and pathologi-cal (15–85%) series (2). In some cases, myocardial bridging is responsible for angina pectoris, myocardial infarction, life-threatening arrhythmias or even death (3). Combined assessment of morphology and function may, therefore, be important. We report the case of a patient with myocardial bridging of the left anterior descending artery (LAD), who underwent mor