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Figure 4 Segmental myocardial blood flow (MBF) data at rest from group I. (A) Comparison of myocardial contrast echocardiography (MCE) and positron emission tomography (PET) by linear regression analysis (solid line). (B) Bland-Altman plot of MCE and PET perfusion data; dashed and dotted lines specify mean ± 1 SD of the measurement difference.
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