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Figure 1 Row tomographic display of stress-only Tc-99m sestamibi SPECT in a female with short axis (SA) slices (top), vertical long axis (VLA) slices (middle) and horizontal long axis (HLA) slices (bottom). The top row of each pair is without attenuation correction (non-AC) and the bottom with AC (AC). The white arrows point to the anterior perfusion defect on the non-AC images, and the black arrows on the projection images point to the breast tissue plane.