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Low event rate for stress-only perfusion imaging in patients evaluated for chest pain

^* Rhode Island Hospital and Brown University, Providence, Rhode Island, USA

View larger version (129K): [in a new window]   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.

View larger version (85K): [in a new window]   Figure 2 Row tomographic display of stress-only Tc-99m sestamibi SPECT in a male 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 arrows on the reconstructed slices point to an inferior wall perfusion defect on the non-AC images, and the arrow on the projection images point to the diaphragm.

View larger version (12K): [in a new window]   Figure 3 Kaplan-Meier event-free survival curve for cardiac events, including non-fatal myocardial infarction and unstable angina leading to coronary angiography.