An evaluation of occupational health and safety changes to eye lens dose in nuclear medicine and interventional departments of Lower Mainland Medical Imaging
department or school: Medicine, Faculty of
department or school: Population and Public Health (SPPH), School of
data provider: DSpace
degree campus: UBCV
creator: Chester, Clayton Marshall
issued: 2022-12-21T00:56:32Z
issued: 2023
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: The eye lens is particularly sensitive to ionizing radiation, and workplace exposures may potentially contribute to cataract development. This paper summarizes unattenuated eye lens dose readings within seven hospitals under the jurisdiction of Lower Mainland Medical Imaging. Unattenuated dose readings were captured from eye lens and collar dosimeters. An attenuated chest dose reading was also captured for comparison and model building. Unattenuated and attenuated dose readings above the limit of detection were analyzed for participants of two similarly exposed groups (Lower Mainland Nuclear Medicine and Lower Mainland Interventional), as determined by duration and proximity (less than one metre) to ionizing radiation. The median unattenuated eye lens dose readings for all participants were below WorkSafeBC’s eye lens exposure limits. Readings from Lower Mainland Nuclear Medicine were particularly low and did not approach action limits. Lower Mainland Interventional included readings which exceeded the internal quarterly action limit of 6.25 milliSieverts. Finally, unattenuated collar dose readings moderately explained the variance in unattenuated eye lens dose readings.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/83459
note: AN EVALUATION OF OCCUPATIONAL HEALTH ANDSAFETY CHANGES TO EYE LENS DOSE IN NUCLEARMEDICINE AND INTERVENTIONAL DEPARTMENTS OFLOWER MAINLAND MEDICAL IMAGINGbyCLAYTON MARSHALL CHESTERBPHE (Honours), Queen’s University, 2011A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THEREQUIREMENTS FOR THE DEGREE OFMASTER OF SCIENCEinTHE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES(Occupational and Environmental Hygiene)THE UNIVERSITY OF BRITISH COLUMBIA(Vancouver)December 2022© Clayton Marshall Chester, 2022The following individuals certify that they have read, and recommend to the Faculty of Graduate andPostdoctoral Studies for acceptance, the thesis entitled:An evaluation of occupational health and safety changes to eye lens dose in nuclear medicine andinterventional departments of Lower Mainland Medical Imagingsubmitted by Clayton Marshall Chester in partial fulfillment of the requirements forthe degree of Master of Sciencein Occupational and Environmental HygieneExamining Committee:Karen Bartlett, Professor, Occupational and Environmental Hygiene, University of British ColumbiaSupervisorYogesh Thakur, Medical Physics Lead, Vancouver Coastal HealthSupervisory Committee MemberSarah Henderson, Scientific Director, British Columbia Centre for Disease ControlSupervisory Committee MemberCheryl Peters, Senior Scientist, British Columbia Centre for Disease ControlAdditional ExamineriiAbstractThe eye lens is particularly sensitive to ionizing radiation, and workplace exposures may potentially con-tribute to cataract development. This paper summarizes unattenuated eye lens dose readings within sevenhospitals under the jurisdiction of Lower Mainland Medical Imaging. Unattenuated dose readings were cap-tured from eye lens and collar dosimeters. An attenuated chest dose reading was also captured for comparisonand model building. Unattenuated and attenuated dose readings above the limit of detection were analyzedfor participants of two similarly exposed groups (Lower Mainland Nuclear Medicine …
has type: Thesis/Dissertation
date issued: 2023-05
is shown at: 10.14288/1.0422749
language: eng
degree discipline: Occupational and Environmental Hygiene
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Bartlett, Karen H.
type: Text
identifier URI: http://hdl.handle.net/2429/83459