Abstract：
:In this paper, the authors review the field of resolution modeling in positron emission tomography (PET) image reconstruction, also referred to as point-spread-function modeling. The review includes theoretical analysis of the resolution modeling framework as well as an overview of various approaches in the literature. It also discusses potential advantages gained via this approach, as discussed with reference to various metrics and tasks, including lesion detection observer studies. Furthermore, attention is paid to issues arising from this approach including the pervasive problem of edge artifacts, as well as explanation and potential remedies for this phenomenon. Furthermore, the authors emphasize limitations encountered in the context of quantitative PET imaging, wherein increased intervoxel correlations due to resolution modeling can lead to significant loss of precision (reproducibility) for small regions of interest, which can be a considerable pitfall depending on the task of interest.
journal_name
Med Physjournal_title
Medical physicsauthors
Rahmim A,Qi J,Sossi Vdoi
10.1118/1.4800806subject
Has Abstractpub_date
2013-06-01 00:00:00pages
064301issue
6eissn
0094-2405issn
2473-4209journal_volume
40pub_type
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