The availability of accurately aligned, whole body, functional PET images has a significant impact on the diagnosis of malignant disease and on identifying and localizing metastasis. Gamma ray attenuation correction is essential in all quantitative PET studies. / The object of this study was to explore the possibility of using beta-gamma coincidence as an attenuation correction technique in order to improve transmission scan image quality. / This study consisted of testing and implementing a beta-gamma attenuation correction technique on an animal PET scanner. In its final form the system uses 68Ge sources enclosed in plastic scintillator cylinders coupled to PMTs. The detection of positrons is activated by the energy loss in the scintillator medium. This system is used in coincidence with one of the animal PET scanner's BGO crystal detectors in order to acquire transmission scans.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.33723 |
| Date | January 2001 |
| Creators | Camborde, Marie-Laure A. |
| Contributors | Thompson, Christopher (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Medical Radiation Physics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001863583, proquestno: MQ78840, Theses scanned by UMI/ProQuest. |
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