Dr. Archambault is a FRQ-S Junior 2 Research Scholar and a radiation physicist with expertise in medical physics, radiation oncology, and medical imaging. He joined the CHU de Québec in 2010 after a postdoctoral fellowship in the division of radiation oncology at the MD Anderson Cancer Center and became a professor in the department of physics, engineering physics, and optics at Laval University in 2013. Hi work focuses on developing new instruments and novel algorithms to make radiation treatments more efficient. His work has been recognized on multiple occasions by the scientific community. Since 2012, he has received the Sylvia Fedoruk prize twice from the Canadian Organization of Medical Physicists (COMP) annually acknowledging the best scientific publication on medical physics by Canadian authors.

Improving the efficiency of radiation treatments

The success of a radiation treatment depends on our ability to focus a high dose of radiation on a tumor target while sparing surrounding tissues. To this end, the complexity of radiation treatment delivery has tremendously increased in recent years, and new tools are required to rapidly and accurately monitor radiation dose delivery. Using materials that emit visible light when irradiated, Dr. Archambault’s team has developed new types radiation dosimeters such as one of the first time-resolved 3D radiation dose detectors. These innovative tools are uniquely positioned to address the challenges of modern radiation treatments (e.g. delivery in the presence of strong magnetic fields) and offer a new way of studying the factors that limit the efficiency of radiation treatments such as anatomical changes.

A second aspect of the research is the development of smart algorithms that automatically analyze data and images produced during radiation treatments to guarantee accurate delivery. Thus, building such a virtual safety net can complement and support the expertise of healthcare professionals to guarantee that every cancer patient treated with radiotherapy receives the best possible treatment. Using machine learning, these algorithms can even predict which patients are likely to require an adaptation of their treatment plan, thus opening new possibilities in personalized radiotherapy.

L'Hôtel-Dieu de Québec
Hôtel-Dieu de Québec
11, côte du Palais, bureau 4331
Québec, Québec
Canada G1R 2J6

Latest news

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41 entries « 1 of 9 »

Piron O, Varfalvy N, Archambault L

Establishing action threshold for change in patient anatomy using EPID gamma analysis and PTV coverage for head and neck radiotherapy treatment.

Journal Article

Med Phys, 2018, ISSN: 0094-2405.

Abstract | Links:

Bourgouin A, Varfalvy N, Archambault L

Thermoplastic wrapped lead sheet to reduce cardiac device cumulative dose.

Journal Article

Med Dosim, 2018, ISSN: 0958-3947.

Abstract | Links:

Mascolo-Fortin J, Matenine D, Archambault L, Despres P

A fast 4D cone beam CT reconstruction method based on the OSC-TV algorithm.

Journal Article

J Xray Sci Technol, 26 (2), pp. 189-208, 2018, ISSN: 0895-3996.

Abstract | Links:

Varfalvy N, Piron O, Cyr MF, Dagnault A, Archambault L

Classification of changes occurring in lung patient during radiotherapy using relative γ analysis and hidden Markov models.

Journal Article

Med Phys, 44 (10), pp. 5043-5050, 2017, ISSN: 0094-2405.

Abstract | Links:

Papaconstadopoulos P, Archambault L, Seuntjens J

Experimental investigation on the accuracy of plastic scintillators and of the spectrum discrimination method in small photon fields.

Journal Article

Med Phys, 44 (2), pp. 654-664, 2017, ISSN: 0094-2405.

Abstract | Links:

41 entries « 1 of 9 »

Active projects

  • An infrastructure for the development of novel optic-based dose sensors and dose-based treatment guidance, Partenariat, Fondation Canadienne pour l'innovation (La), Fonds des leaders John-R.-Evans (FLJR), from 2016-10-01 to 2018-08-31
  • Centre de recherche sur le cancer, Subvention, Institutionnel - BDR, BDR - Centres de recherche reconnus, from 1996-05-01 to 2023-04-30
  • Centre hospitalier universitaire de Québec - CHU de Québec-Université Laval, Subvention, Centre hospitalier universitaire de Québec - Université Laval, Centres de recherche affiliés, from 2017-01-01 to 2099-12-31
  • Development of a urine-based prostate cancer cell bioluminescence imaging nanotechnology for single cell transcriptional characterization, Subvention, Société de recherche sur le cancer, Subvention de fonctionnement, from 2016-09-01 to 2018-08-31
  • New tools and method for monitoring ionizing radiation delivery in medical physics, Subvention, Conseil de recherches en sciences naturelles et génie Canada, Subventions à la découverte SD (individuelles et d'équipe), from 2018-04-01 to 2023-03-31
  • Une radiothérapie plus efficace par un processus évolutif et adaptatif, Subvention, Fonds de recherche du Québec - Santé, Chercheur-boursier Juniors 1 et 2, Seniors, from 2016-07-01 to 2020-06-30

Recently finished projects

  • Accroître la qualité et garantir la précision en radiothérapie par un suivi dosimétrique et anatomique en temps réel et par le développement de stratégies d'intervention personnalisées, Subvention, Fonds de recherche du Québec - Santé, Chercheur-boursier Juniors 1 et 2, Seniors, from 2012-07-01 to 2016-06-30
  • INNOV Phase 1 - Dosimètre multipoint à fibres scintillantes pour la radiothérapie, Subvention, Conseil de recherches en sciences naturelles et génie Canada, De l'idée à l'innovation (INNOV), from 2016-12-20 to 2018-05-19
  • Novel methods and instruments for accurate tracking of ionizing radiation delivery for medical physics, Subvention, Conseil de recherches en sciences naturelles et génie Canada, Subventions à la découverte SD (individuelles et d'équipe), from 2013-04-01 to 2018-03-31
  • Use of adipose-derived stem cells and hyperbaric oxygen therapy to enhance healing of skin wounds in irradiated tissues, Subvention, Instituts de recherche en santé du Canada, Programme de subvention Catalyseur, from 2017-03-01 to 2018-02-28
Data provided by the Université Laval research projects registery