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(a) Of 20 patients who underwent both multidetector CT and SPECT after acute MI, correlation of infarct size (percentage of LV mass) was moderate (y = 0.55x, r = 0.48, P = .01). (b) Bland-Altman analysis showed trend toward underestimation of percentage of infarct size by using multidetector CT as compared with SPECT (mean difference, −7% ± 9), specifically for larger infarcts (>10% of myocardium mass). SD = standard deviation.
