Conveners
T1-11 Medical Imaging (DMBP) / Imagerie médicale (DPMB)
- Melanie Martin (University of Winnipeg)
Prof.
Melanie Campbell
(University of Waterloo)
6/16/15, 8:45 AM
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Oral (Non-Student) / orale (non-étudiant)
PURPOSE. Calculations of retinal blur and eye power are developed and used to study blur on the retina of the growing chick eye. The decrease in defocus and optical blur during growth is known to be an active process. Here we show that the rate of defocus reduction is proportional to the amount of blur on the retina.
METHODS. From literature values of chick eye parameters, the amounts of...
Dr
Esmat Elhami
(University of Winnipeg)
6/16/15, 9:00 AM
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Introduction: Positron emission tomography (PET) is a highly sensitive, quantitative and non-invasive detection method that provides 3D information on biological functions inside the body. There are several factors affecting the image data, including normalization, scattering, and attenuation. In this study we have quantified the effect of scattering and attenuation corrections on the PET...
Dr
Alan Wilman
(University of Alberta)
6/16/15, 9:15 AM
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Invited Speaker / Conférencier invité
Magnetic Resonance Imaging (MRI) is a powerful imaging method for examining hydrogen protons and their local environment. Inferences can be made about the local environment from the signal relaxation (decay or recovery) or phase evolution. For many years, phase images were largely discarded in favor of magnitude images only, which dominate clinical MRI. Although the sensitive nature of...
Prof.
Melanie Martin
(Physics, University of Winnipeg, Radiology, University of Manitoba)
6/16/15, 9:45 AM
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Mouse brain white matter (WM) damage following the administration of cuprizone was studied weekly using diffusion tensor imaging, quantitative magnetization transfer imaging, T2-weighted MRI (T2w), and electron microscopy (EM). A previous study examined correlations between MR metrics and EM measures after 6 weeks of feeding. The addition of weekly *ex vivo* tissue analysis allows for a more...
Dr
Bill Whelan
(Dept of Physics, University of Prince Edward Island)
6/16/15, 10:00 AM
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Oral (Non-Student) / orale (non-étudiant)
Optical spectroscopy has become a valuable tool in biomedical diagnostics because of its ability to provide biochemical information on endogenous and exogenous chromophores present in tissues. In this work, point radiance spectroscopy using a white light source is investigated 1) to measure the optical properties of bulk tissues and 2) to detect localized gold nanoparticles in tissue mimicking...
