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Figure 3 Long-axis view T1-turbo spin echo images acquired at 3 days (left panels) and 8 weeks (right panels) from 2 animals (top and bottom rows). As in the inversion recovery gradient echo sequence, both extracellular and intravascular gadolinium-chelates produced differential enhancement (arrows) in acute infarctions (left panels). In chronic infarctions, the extracellular agent produced differential enhancement (far right panels, arrows), but not the intravascular agent (middle right panels). Accordingly, intravascular gadolinium-chelate discriminates acute myocardial infarction from scar tissue.
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