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Figure 2 (a) Tomographic myocardial perfusion study of the right ventricle at rest and during dipyrdamole stress demonstrating moderate reversible perfusion defects in the anterior wall from the apex to the mid-ventricle (frames A2-5 and B5-8); there is also a fixed perfusion defect in the inferior wall (frames A4-7 and B5-8). The anatomy of the myocardial segments is shown schematically in Figure 1b. (b) Schematic representation demonstrating the orientation of the right ventricle in the perfusion study described in a; the approximate transthoracic echocardiographic plane is indicated.
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