CT slices showing delayed contrast and LV volume, and matching histology.

<p>Areas of delayed iodine contrast enhancement in the infarcted myocardium are visible in micro-CT images (4A) due to contrast agent retention in fibrotic tissue. These portions of infarcted myocardial tissue appear on stained histological slices (4B). Indicators for infarcted myocardium are comparable in location, shape, and volume in both CT grayscale images and stained histological slices. At bottom, CT images of the same subject after administration of an iodinated lipid blood pool contrast agent. Images acquired during diastole (4C) and systole (4D) were used to calculate the ejection fraction.