Panels A and B. Representative CMR images. Oedema T2W images (left column), acute LGE images (center), and ShMOLLI T1-mapping (right column) are displayed. Two sets of images (Panel A and Panel B) corresponding to two separate patients are shown. Top panels (A): a case of transmural inferior STEMI:both oedema (T2W) and LGE depict an area of increased signal intensity; in the same region T1-mapping depicts significantly increased T1 values (shown in red) compared to the remote unaffected myocardium (normal T1 values shown in green). Lower panels (B), a case of subendocardial NSTEMI : Although the T2 W images show only a mild increase in brightness, there is an area of increased T1 values exceeding the area of LGE enhancement. Of note the peak troponin I was significantly different in the two patients (peak troponin I 50 mg/mL in the STEMI patient vs7 mg/mL in the NSTEMI patient). Panels C and D: Correlation between T1 values and T2W normalized SI (Panel C) and between T1 values and LGE normalized SI (Panel D). The SI of T2W (on the × axis, panel C) and LGE (on × axis Panel D), both normalized to the remote unaffected myocardium, are shown to correlate strongly with T1 values.
Dall'Armellina et al. Journal of Cardiovascular Magnetic Resonance 2012 14:15 doi:10.1186/1532-429X-14-15