FIGURE 1. Postexercise ^99mTc-sestamibi MPS images of 83-y-old asymptomatic man. Perfusion defect is noted in inferior and inferoapical walls in poststress supine images. Poststress prone images are normal, demonstrating that apparent perfusion defect is secondary to soft-tissue attenuation. Normal wall motion was noted on gated SPECT.

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