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Investigations into a positron emission imaging algorithm
Includes abstract.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Physics
2015
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| _version_ | 1867613203270205440 |
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| access_status_str | Open Access |
| author | Bickell, Matthew |
| author2 | Buffler, Andy |
| author_browse | Bickell, Matthew Buffler, Andy |
| author_facet | Buffler, Andy Bickell, Matthew |
| author_sort | Bickell, Matthew |
| collection | Thesis |
| description | Includes abstract. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/12106 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:24.523Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Physics |
| publisherStr | Department of Physics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/12106 Investigations into a positron emission imaging algorithm Bickell, Matthew Buffler, Andy Govender, Indresan Physics Includes abstract. Includes bibliographical references. A positron emission imaging algorithm which makes use of the entire set of lines-of-response in list-mode form is presented. The algorithm parameterises the lines-of-response by a Cartesian mesh over the field-of-view of a Positron Emission Tomography (PET) scanner to find their density distribution throughout the mesh. The algorithm is applied to PET image reconstruction and Positron Emission Particle Tracking (PEPT). For the PET image reconstruction, a redistribution of the lines-of-response is employed to remove the discrete nature of the data caused by the finite size of the detector cells, and once the density distribution has been determined, it is filtered and corrected for attenuation. The algorithm is applied to static and dynamic systems of hard phantoms, biological specimens and fluid flow through a column. In the dynamic systems, timesteps as low as 1 second are achieved. The results from the algorithm are compared to the standard Radon transform reconstruction algorithm, and the presented algorithm is observed to produce images with superior edge contrast, smoothness and representation of the physical system. 2015-01-11T13:32:48Z 2015-01-11T13:32:48Z 2012 Master Thesis Masters MSc http://hdl.handle.net/11427/12106 eng application/pdf Department of Physics Faculty of Science University of Cape Town |
| spellingShingle | Physics Bickell, Matthew Investigations into a positron emission imaging algorithm |
| thesis_degree_str | Master's |
| title | Investigations into a positron emission imaging algorithm |
| title_full | Investigations into a positron emission imaging algorithm |
| title_fullStr | Investigations into a positron emission imaging algorithm |
| title_full_unstemmed | Investigations into a positron emission imaging algorithm |
| title_short | Investigations into a positron emission imaging algorithm |
| title_sort | investigations into a positron emission imaging algorithm |
| topic | Physics |
| url | http://hdl.handle.net/11427/12106 |
| work_keys_str_mv | AT bickellmatthew investigationsintoapositronemissionimagingalgorithm |