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http://hdl.handle.net/11375/11348
Title: | The Biological Effects of PET Scans with 18F-FDG in Mice |
Authors: | Taylor, Kristina |
Advisor: | Boreham, Douglas |
Department: | Medical Physics |
Keywords: | radiation;diagnostic imaging;PET;Trp53 mice;18F-FDG;cancer risk |
Publication Date: | Oct-2011 |
Abstract: | <p>This research addresses low dose ionizing radiation exposure and risk. While it is well understood that high doses of radiation lead to deleterious health effects, there is controversy surrounding the definitive level of risk associated with exposure to low doses of radiation. These types of low level exposures are relevant to patients undergoing medical imaging procedures. This thesis considers the health effects associated with nuclear medicine, specifically positron emission tomography (PET), with the radiopharmaceutical 2-deoxy-2-(<sup>18</sup>F)fluoro-D-glucose<sup> </sup>(<sup>18</sup>F-FDG). These effects were studied in mice to eliminate the high degree of variability among human patients.</p> <p>The early response to various injection activities of <sup>18</sup>F-FDG was first considered in terms of the DNA damage response in the haematopoietic cells of wild-type <em>Trp53+/+</em> mice. The late effects of PET scans with clinically relevant doses of <sup>18</sup>F-FDG, such as carcinogenesis, were evaluated in cancer prone <em>Trp53+/-</em> mice. The role of p53 in the response to low dose radiation was also investigated to explore how short term responses correlate with p53-mediated cancer risk. This work has helped to advance the understanding of low dose radiation biology and the health risks associated with medical imaging procedures.</p> |
URI: | http://hdl.handle.net/11375/11348 |
Identifier: | opendissertations/6321 7373 2262451 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 1.66 MB | Adobe PDF | View/Open |
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