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Figure 1 Comparison of (a) in vivo diastolic cine image, (b) in vivo gadolinium-enhanced cardiovascular magnetic resonance, (c) gross specimen of sections from an explanted heart, and (d) histologic sections stained with sirius red. All images are to the same scale. After fixation, considerable contraction has occurred. Regions of gadolinium enhancement correlate with regions of macroscopic unstained pale myocardium and regions of red-stained collagen. A representative mesocardial region, which is well defined, is marked by an arrow.
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