Incorporation of a two metre long PET scanner in STIR

C. Tsoumpas*, C. Brain, T. Dyke, D. Gold

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
28 Downloads (Pure)

Abstract

The Explorer project aims to investigate the potential benefits of a total-body 2 metre long PET scanner. The following investigation incorporates this scanner in STIR library and demonstrates the capabilities and weaknesses of existing reconstruction (FBP and OSEM) and single scatter simulation algorithms. It was found that sensible images are reconstructed but at the expense of high memory and processing time demands. FBP requires 4 hours on a core; OSEM: 2 hours per iteration if ran in parallel on 15-cores of a high performance computer. The single scatter simulation algorithm shows that on a short scale, up to a fifth of the scanner length, the assumption that the scatter between direct rings is similar to the scatter between the oblique rings is approximately valid. However, for more extreme cases this assumption is not longer valid, which illustrates that consideration of the oblique rings within the single scatter simulation will be necessary, if this scatter correction is the method of choice.

Original languageEnglish
Title of host publicationJournal of Physics
Subtitle of host publicationConference Series
Number of pages4
Volume637
DOIs
Publication statusPublished - 16-Sept-2015
Externally publishedYes
EventInternational Conference on Bio-Medical Instrumentation and Related Engineering and Physical Sciences, BIOMEP 2015 - Athens, Greece
Duration: 18-Jun-201520-Jun-2015

Conference

ConferenceInternational Conference on Bio-Medical Instrumentation and Related Engineering and Physical Sciences, BIOMEP 2015
Country/TerritoryGreece
CityAthens
Period18/06/201520/06/2015

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