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Non-isotropic noise correlation in PET data reconstructed by FBP but not by OSEM demonstrated using auto-correlation

Pasha Razifar1, Mark Lubberink, Harald Schneider

  • 1Uppsala University, Centre for Image Analysis, Lägerhyddsvägen 3, SE-752 37 Uppsala, Sweden. ewert@cb.uu.se.

BMC Medical Imaging
|May 17, 2005
PubMed
Summary

Positron emission tomography (PET) reconstruction methods impact image noise. Filtered back projection (FBP) can create non-isotropic noise correlations, unlike iterative ordered subsets expectation maximisation (OSEM), which produces isotropic noise.

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