Occupational radiation dose during the trans-catheter aortic valve replacement procedure
| dc.contributor.author | Shatila, Omar Hani, author | |
| dc.contributor.author | Johnson, Thomas, advisor | |
| dc.contributor.author | Brandl, Alexander, committee member | |
| dc.contributor.author | Miller, Charles, committee member | |
| dc.date.accessioned | 2015-08-28T14:35:47Z | |
| dc.date.available | 2015-08-28T14:35:47Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | Fluoroscopy is an x-ray-imaging technique used during medical procedures such as trans-catheter aortic valve replacement (TAVR). The use of fluoroscopy exposes medical personnel to x-rays scattered from the patient. In this study, radiation dose to personnel at University of Colorado Hospital was measured using Phillips DoseAware dosimeters. The primary physician (0.106 mSv), secondary physician (0.035 mSv), perfusionist (0.027 mSv) received highest median doses of the operating room (OR) personnel. The physicians’ relatively higher doses were expected because of their proximity to the isocenter of the x-ray beam. The perfusionist’s position in the OR, however, is significantly further away from the isocenter than the physicians’ position, suggesting the x-rays scatter unevenly and further away from the isocenter than previously expected. A linear relationship between fluoroscopic output and beam time was not found, however only 21 data points were collected. Factors other than fluoroscopy output can influence dose such as medical personnel movement, beam direction and scatter distribution. A dose map could relate dose to fluoroscopy output without the variability caused by these factors and be a better predictor of medical personnel doses. The dosimeters in this study were susceptible to radio-frequency interference (RF): future studies should consider dosimeters immune to RF. | |
| dc.format.medium | born digital | |
| dc.format.medium | masters theses | |
| dc.identifier | Shatila_colostate_0053N_13242.pdf | |
| dc.identifier.uri | http://hdl.handle.net/10217/167256 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2000-2019 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.title | Occupational radiation dose during the trans-catheter aortic valve replacement procedure | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Environmental and Radiological Health Sciences | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.S.) |
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