Jennifer K Lyons

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BACKGROUND Gadolinium (Gd)-based delayed-enhancement MRI (DEMRI) identifies nonviable myocardium but is nonspecific and may overestimate nonviable territory. Manganese (Mn(2+))-enhanced MRI (MEMRI) denotes specific Mn(2+) uptake into viable cardiomyocytes. We performed a dual-contrast myocardial assessment in a porcine ischemia-reperfusion (IR) model to(More)
BACKGROUND The exact mechanism of stem cell therapy in augmenting the function of ischemic cardiomyopathy is unclear. In this study, we hypothesized that increased viability of the peri-infarct region (PIR) produces restorative benefits after stem cell engraftment. A novel multimodality imaging approach simultaneously assessed myocardial viability(More)
Human Amnion-derived Mesenchymal Stem Cells (hAMSCs) were transplanted into the infarct and peri-infarct regions of a pig ischemia-reperfusion model. The hAMSC therapy improved cardiac systolic function post-MI, compared to control animals, and Cardiac MRI with Manganese-Enhanced MRI (MEMRI) was able to detect increased CNR from live populations of hAMSCs(More)
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