OMPI Seminar: Kevin Britton and Jennifer Renaud

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Thursday, November 23, 2017

Time: 3:30 - 5:00 pm. Refreshments start at 3:15 pm.

Location: Room RPB 205 (boardroom), Health Canada, 775 Brookfield Road, Ottawa. Please check in at the front desk.


1) "A radium series multimedia model as a tool in health physics"

By Kevin Britton, MSc student in Earth Sciences, University of Ottawa

Supervisor: Dr. Trevor Stocki

Abstract: Health Canada is responsible for collecting and utilizing information to protect Canadians from health risks associated with radionuclides in food and the environment. Improved modelling of radionuclides enables better human dose assessments. The present study is to develop the easy to use and adaptable Hg Environmental Ratios Multimedia Ecosystem Sources (HERMES) model to estimate concentrations of radium-226, lead-210 and polonium-210 in waterways that may be elevated by location and / or human activity. This sub-series is prevalent at significant concentrations in air, soil, water and organisms. The series comprises about 30% of ingestion doses to humans, and more significant overall doses to many populations and species. Lead-210 and polonium-210 are more difficult to measure than other radionuclides in potential human food sources. The model can inform sampling design optimization where media and biota data are difficult to collect or not available.


2) "Canadian technology for rubidium-82 PET: perfusion imaging and blood flow quantification"

By Jennifer Renaud, MscUniversity of Ottawa Heart Institute

Abstract:Cardiovascular disease remains the leading cause of death worldwide. Traditionally, relative perfusion imaging with SPECT has been the most commonly used technique for the diagnosis and prognosis of coronary artery disease. However, the reduced supply of Tc-99m has motivated the investigation of alternative methods. PET imaging with rubidium-82 is gaining more widespread use due to its superior diagnostic accuracy and its availability without the need for an onsite cyclotron. The Canadian-developed technology for delivery of rubidium-82 to patients and its utility in PET perfusion imaging and blood flow quantification will be the focus of this presentation.