Temporal Image Fractionation: Rejection of Motion Artifacts in Myocardial SPECT Page 1
unrecognized, creating artifacts in the reconstructed im ages, adversely affecting their visual or …

Myocardial perfusion SPECT imaging accounts for well over 90% of all myocardial perfusion
imaging performed in the United States today. Although clearly superior to the traditional …

A central assumption in SPECT is that the projection data are" consistent," that is, the
camera views an unchanging distribution during acquisition. Several new radiotracers of …

The optimal temporal sampling rate in electrocardiograph-gated myocardial SPECT is
questionable: low rates, typically 8 frames per cardiac beat (8fr/cb), favor image quality …

In this issue of The Journal of Nuclear Medicine, Sharir et al.(1) report normal limits for
quantitative regional motion and thickening measurements by gated myocardial perfusion …

Gated myocardial perfusion SPECT imaging is easily performed with standard camera-
computer systems, and allows the simultaneous collection of function and perfusion …

METhODS Severalapproacheshavebeenproposedto avoidmisinterpre tation of SPECT
images due to attenuationartifact. Observation of rotatingprojectionimagesis helpfulin …

Departments ofRadiology, Nuclear Medicine Section and Medicine, Cardiovascular
Division, and the Cardiovascular ResearchInstitute ofthe University ofCalzfornia …

TO THE EDITOR: We recently reported on a comparison of 4 motion-correction techniques
in SPECT imaging of the heart (1). In that study, we found that the cross-correlation …

Discussion Although some degree of cardiac motion occurs frequently during myocardial
SPECT image acquisition, it usually does not produce significant artifacts during the …