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Figure 3 Pathology score (mean ± SEM) for combined results of echocardiography and nuclear studies. Pathology score 0 = <25% viable myocytes, 1 = 25–50%; 2 = 50–75%; 3 = >75% viable myocytes. DE–/Tl– = both dobutamine echo and Tl-SPECT judged nonviable; DE–/Tl+ = no dobutamine response but viability by Tl-SPECT; DE+/Tl+ = both dobutamine and Tl-SPECT judged viable; DE–/PET– = both dobutamine echo and PET judged nonviable; DE–/PET+ = no dobutamine response but viability by PET; DE+/PET+ = both dobutamine and PET judged viable.