Figure 5

Late gadolinium enhanced end diastolic images from one of the stromal cell animals on the day of infarction, left, and at 12 weeks, right. The initial image demonstrates a large infarct with a central area of no enhancement. Such a pattern is often seen with extensive microvascular injury leading to "no reflow" and failure of delivery of tracer to the central zone of infarction. The 12 week image demonstrates a considerable reduction in the extent of infarction, and thinning of the infarct area, with loss of this no reflow effect, and cavitary dilatation.