2025 CAP Congress / Congrès de l'ACP 2025

Session

(DPMB) M1-9 From Photons to Physiology: Innovations in Imaging Hardware and Techniques | Des photons à la physiologie : innovations dans le matériel et les techniques d'imagerie (DPMB)

M1-9

9 Jun 2025, 10:15

Conveners

(DPMB) M1-9 From Photons to Physiology: Innovations in Imaging Hardware and Techniques | Des photons à la physiologie : innovations dans le matériel et les techniques d'imagerie (DPMB)

• Jessica Rodgers (Dept. of Physics and Astronomy, University of Manitoba)

106. Photon-to-Digital Converters – 3D Integrated Digital Single-Photon Detector Arrays Enabling Time-of-Flight PET and CT

Prof. Serge Charlebois (Université de Sherbrooke)

09/06/2025, 10:15

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral (Non-Student) / Orale (non-étudiant(e))

We develop 3D integrated Photon-to-Digital Converters (PDC) for photon counting applications needing sub-nanosecond timing resolution. Our goal is to provide a detector capable of delivering single photon timing resolution below 50 ps that could enable Time-of-Flight positron emission tomography (ToF-PET) and computed tomography (ToF-CT). We will review the benefits and the challenges posed by...

194. Accuracy of Hyperspectral Near-Infrared Spectroscopy in Measuring Tissue Water Content

Dr Mamadou Diop (Western University & The Lawson Health Research Institute)

09/06/2025, 10:30

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral not-in-competition (Undergraduate Student) / Orale non-compétitive (Étudiant(e) du 1er cycle)

Introduction: Edema, an abnormal increase in tissue water fraction (WF), affects over one million Canadians chronically. Cerebral edema (CE) is especially concerning, as it is a predictor of mortality in stroke and traumatic brain injury. While magnetic resonance imaging and computed tomography can assess WF, they are costly, not readily available, and inappropriate for continuous...

422. Design of Gradient Coil Geometry for a Halbach-Based Ultra Low-Field MRI System

Jacob Beaudoin (Dept. of Biomedical Engineering, University of Calgary)

09/06/2025, 10:45

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

Introduction: Magnetic Resonance Imaging (MRI) is a powerful diagnostic tool that provides detailed images of soft tissues, making it essential for a wide range of medical applications. However, conventional MRI systems rely on high-field (1.5 – 3.0 Tesla [1, 2]) superconducting magnets, resulting in high cost [3, 4], significant infrastructure requirements, and limited accessibility in many...

423. A Fast Method for Mapping pH using Magnetic Resonance Imaging

Nicole Lofroth (Dept. of Biomedical Engineering & Hotchkiss Brain Institute, University of Calgary)

09/06/2025, 11:00

Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

Introduction: Magnetization Transfer (MT) is a Magnetic Resonance Imaging (MRI) contrast enhancement technique that exploits the exchange of magnetization between pools of free-water protons and protons bound to macromolecules in tissue [1]. Chemical Exchange Saturation Transfer (CEST) MRI is a direct application of MT, which can noninvasively image dilute CEST agents (including amide...