Figure 4From: Tracking of stem cells in vivo for cardiovascular applicationsDelayed contrast-enhanced (DCE) long-axis image (left) demonstrating infarcted myocardium (MI). MR-labeled-MSC injections appear as hypointense areas on fast gradient echo images. Serial imaging at 72Â hours, 1Â week, 2Â weeks, 4Â weeks, and 8Â weeks demonstrates the persistent of the MR-MSC injections. The volume of injections decreases over time. In addition, an injection placed in the normal myocardium (arrow) can no longer be detected at 4Â weeks post-injection. Reprinted with permission from Soto et al.[120].Back to article page