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Figure 1 Distribution of segmental artifacts on real-time myocardial contrast echocardiography. AL = anterior lateral; AA = apical anterior; BA = basal anterior; BAS = basal antero-septal; BI = basal inferior; BL = basal lateral; BP = basal posterior; BS = basal septal; MA = mid-anterior; MAS = mid antero-septal; ML = mid-lateral; MP = mid-posterior; MI = mid-inferior; MS = mid-septal.