We systematically studied the thickness of the myocardium in the left ventricular apical region in patients without a history of myocardial infarction and with no hemodynamically significant coronary artery disease, using contrast-enhanced multidetector spiral computed tomography with submillimeter collimation. We confirmed previous pathology data and reliably detected a small confined region of the normal apical myocardium with a thickness of <or=3 mm, i.e., the left ventricular thin point.