Avoidance of upward creep artifact during TI-201 myocardial perfusion tomography using adenosine infusion. A case report.

Upward motion of the heart during tomographic data acquisition of stress TI-201 myocardial perfusion images may lead to artifacts in the reconstructed tomograms. The authors report a patient in whom this occurred, giving the impression of reversible perfusion defects. Although correction of the raw data abolished the artifact, a separate study using adenosine vasodilation produced normal images. The authors conclude that adenosine vasodilation should be considered in preference to dynamic exercise in patients at risk of this artifact, such as those with a high exercise tolerance.