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Medical Sciences; Health Sciences; Natural Sciences and Engineering; Engineering

Hugo Bouchard

Applications of physics to medicine, in particular radiation therapy and imaging.

Professeur agrégé

Faculté des arts et des sciences - Département de physique

Complexe des sciences, room B-4435

514 343-6111 #34879

h.bouchard@umontreal.ca

Profile

Research expertise

  • Modeling of radiation transport coupled to magnetic fields by the Monte Carlo method.
  • Characterization of tissues by spectral computed tomography.
  • Small field dosimetry.
  • Simulation of the dosimetric response of detectors.
  • Radiation detectors: ionization chambers, radiochromic film, diodes, scintillator, liquid ionization chamber.

education

  • 2010 — PhD — Physique — Université de Montréal
  • 2003 — MSc — Physique médicale — McGill
  • 2001 — BSc — Physique — Université du Québec

For more information…

Affiliations and responsabilities

Research affiliations

Research units

Membre

University service and activities

Activities within organizations or entities of the institution

Teaching and supervision

Teaching

Courses taught (current session only)

Programs

Student supervision

Theses and dissertation supervision (Papyrus Institutional Repository)

2023

Contrôle en temps réel de la précision du suivi indirect de tumeurs mobiles en radiothérapie

Graduate : Remy, Charlotte
Cycle : Doctoral
Grade : Ph. D.
2022

Detector dose response to megavoltage photon beams coupled to magnetic fields

Graduate : Cervantes Espinosa, Yunuen
Cycle : Doctoral
Grade : Ph. D.
2021

Étude de la tomodensitométrie spectrale quantitative et ses applications en radiothérapie

Graduate : Simard, Mikaël
Cycle : Doctoral
Grade : Ph. D.
2021

Plateforme numérique de tomodensitométrie et ses applications en radiothérapie

Graduate : Delisle, Étienne
Cycle : Master's
Grade : M. Sc.
2020

Segmentation automatique de la fibrose pulmonaire sur images de tomodensitométrie en radio-oncologie

Graduate : Fréchette, Nicolas
Cycle : Master's
Grade : M. Sc.
2020

Évaluation de la corrélation inter-substitut pour le suivi de tumeurs pulmonaires indirect

Graduate : Ahumada, Daniel F.
Cycle : Master's
Grade : M. Sc.
2014

Étude des artefacts en tomodensitométrie par simulation Monte Carlo

Graduate : Bedwani, Stéphane
Cycle : Maîtrise / Master's
Grade : M. Sc.

Projects

Research projects

2023 - 2029

Spectrométrie de masse par tomodensitométrie spectrale avec le MARS

Lead researcher : Hugo Bouchard
Funding sources: Université de Montréal
Grant programs: PVXXXXXX-FEI sans restriction
2022 - 2028

Radiothérapie adaptative en ligne améliorée par modélisation physique et intelligence artificielle_(Radiothérapie adaptative intégrée par modélisation physique et intelligence artificielle)

Lead researcher : Hugo Bouchard
Funding sources: FRQNT/Fonds de recherche du Québec - Nature et technologies (FQRNT)
Grant programs: PVXXXXXX-Chaires de recherche en partenariat public-privé (financement partagé entre les fonds de recherche du Québec)
2021 - 2027

Simulation of physical processes with Monte Carlo methods in the keV and MeV energy range

Lead researcher : Hugo Bouchard
Funding sources: CRSNG/Conseil de recherches en sciences naturelles et génie du Canada (CRSNG)
Grant programs: PVX20965-(RGP) Programme de subvention à la découverte individuelle ou de groupe
2022 - 2026

Major Resource Support at the Université de Montréal for Canada's Subatomic Physics Program

Lead researcher : Jean-François Arguin
Co-researchers : Claude Leroy , Hugo Bouchard , Ubi Wichoski , Razvan Gornea , Thomas Koffas , Thomas Brunner , Richard Teuscher , Ziqing Hong , Nikolina Ilic , Kenneth Clark
Funding sources: CRSNG/Conseil de recherches en sciences naturelles et génie du Canada (CRSNG)
Grant programs: PVXXXXXX-(PSA) Projet en physique subatomique
2021 - 2026

Canada Research Chair in Emerging Applications of Spectral Computed Tomography

Lead researcher : Hugo Bouchard
Funding sources: SPIIE/Secrétariat des programmes interorganismes à l’intention des établissements
Grant programs: PVX50399-Chaires de recherche du Canada
2025

Institut TransMedTech Montréal // Validation d’un algorithme de reconstruction spectrale par modélisation Monte Carlo d’un scanner à comptage de photons

Lead researcher : Carl-Éric Aubin
Co-researchers : Hugo Bouchard
Funding sources: FRQNT/Fonds de recherche du Québec - Nature et technologies (FQRNT)
Grant programs: PVXXXXXX-Grands défis de société
2023 - 2024

Développement d'un outil de modélisation Monte Carlo d'un scanner à comptage de photons et ses applications en reconstruction spectrale

Lead researcher : Carl-Éric Aubin
Co-researchers : Hugo Bouchard
Funding sources: SPIIE/Secrétariat des programmes interorganismes à l’intention des établissements
Grant programs: PVXXXXXX-Fonds d'excellence en recherche Apogée Canada/Bourse
2019 - 2022

Spectrométrie de masse par tomodensitométrie spectrale avec le MARS

Lead researcher : Hugo Bouchard
Funding sources: FCI/Fondation canadienne pour l'innovation
Grant programs: PVXXXXXX-Fonds des leaders
2015 - 2022

Accurate Monte Carlo simulation of megavoltage beams coupled to external magnetic fields

Lead researcher : Hugo Bouchard
Funding sources: CRSNG/Conseil de recherches en sciences naturelles et génie du Canada (CRSNG)
Grant programs: PVX20965-(RGP) Programme de subvention à la découverte individuelle ou de groupe
2017 - 2021

Performance of an ultrasound probe prototype for tumor motion management in lung radiotherapy

Lead researcher : Hugo Bouchard
Co-researchers : Jean-François Carrier
Funding sources: Elekta Canada , MEDTEQ - Consortium de recherche et d''innovation en technologies médicales du Québec
Grant programs: ,
2015 - 2018

Investigation of tissue characterization techniques for proton therapy

Co-researchers : Hugo Bouchard

Outreach

Publications and presentations

Publications

  1. J Duchaine, D Markel, JL Ley, D Béliveau-Nadeau, K Zerouali, R Doucet, and H Bouchard. Consistency of IAEA’s TRS-483 and AAPM’s extended TG-51 protocols for clinical reference do- simetry of the CyberKnife M6 machine. Journal of Applied Clinical Medical Physics, 24(5) :e13976, 2023

  2. H Cook, M Simard, N Niemann, C Gillies, M Osborne, M Hussein, V Rompokos, H Bouchard, G Royle, J Pettingell, H Palmans, and A Lourenço. Development of optimised tissue-equivalent materials for proton therapy. Physics in Medicine and Biology, 68(7) :075009, 2023

  3. M Yang, P Wohlfahrt, C Shen, and H Bouchard. Dual-andmulti-energyctforparticlestopping- power estimation : current state, challenges and potential. Physics in Medicine and Biology, 68(4) :04TR01, 2023

  4. C Remy and H Bouchard. Uncertainty-driven determination of target measurement times for indirect tracking validation in adaptive radiotherapy. Physics in Medicine & Biology, 68(1) :015009, 2023

  5. M Simard and H Bouchard. One-step iterative reconstruction approach based on eigentis- sue decomposition for spectral photon-counting computed tomography. Journal of Medical Imaging, 9(4) :044003, 2022

  6. C Remy and H Bouchard. Adaptive confidence regions for indirect tracking of moving tumors in radiotherapy. Medical Physics, 49(7) :4273–4283, 2022

  7. J Duchaine, M Wahl, D Markel, and H Bouchard. A probabilistic approach for determining Monte Carlo beam source parameters : II. Impact of beam modeling uncertainties on dosime- tric functions and treatment plans. Physics in Medicine & Biology, 67(4) :045006, 2022

  8. J Duchaine, D Markel, and H Bouchard. A probabilistic approach for determining Monte Carlo beam source parameters : I. Modeling of a CyberKnife M6 unit. Physics in Medicine & Biology, 67(4) :045007, 2022

  9. J Duchaine, D Markel, and H Bouchard. Efficient dose-rate correction of silicon diode relative dose measurements. Medical Physics, 49(6) :4056–4070, 2022

  10. Y Cervantes, S Duane, and H Bouchard. Monte Carlo investigation of electron fluence pertur- bation in MRI-guided radiotherapy beams using six commercial radiation detectors. Physics in Medicine & Biology, 67(3) :035001, 2022

  11. Y Cervantes, J Duchaine, I Billas, S Duane, and H Bouchard. Monte Carlo calculation of detector perturbation and quality correction factors in a 1.5 T magnetic resonance guided radiation therapy small photon beams. Physics in Medicine & Biology, 66(22) :225004, 2021

  12. I Billas, H Bouchard, U Oelfke, and S Duane. Traceable reference dosimetry in MRI guided radiotherapy using alanine : calibration and magnetic field correction factors of ionisation chambers. Physics in Medicine & Biology, 66(16) :165006, 2021

  13. C Remy, D Ahumada, A Labine, JC Côté, M Lachaine, and H Bouchard. Potential of a proba- bilistic framework for target prediction from surrogate respiratory motion during lung radio- therapy. Physics in Medicine & Biology, 66(10) :105002, 2021

  14. H Bouchard, I Billas, A Subiel, and S Duane. Eigencolor radiochromic film dosimetry. Medical Physics, 48(5) :2592–2603, 2021

  15. KB Niepel, M Stanislawski, M Wuerl, F Doerringer, M Pinto, O Dietrich, B Ertl-Wagner, A La- londe, H Bouchard, E Pappas, I Yohannes, M Hillbran, G Landry, and K Parodi. Animal tissue-based quantitative comparison of dual-energy CT to SPR conversion methods using high-resolution gel dosimetry. Physics in Medicine & Biology, 66(7) :075009, 2021

  16. H Bouchard. Reference dosimetry of modulated and dynamic photon beams. Physics in Medicine & Biology, 65(24) :24TR05, 2020

  17. Y Cervantes, I Billas, D Shipley, S Duane, and H Bouchard. Small-cavity chamber dose response in megavoltage photon beams coupled to magnetic fields. Physics in Medicine & Biology, 65(24) :245008, 2020

  18. M Simard, E Bär, D Blais, and H Bouchard. Electron density and effective atomic number es- timation in a maximum a posteriori framework for dual-energy computed tomography. Medical Physics, 47(9) :4137–4149, 2020

  19. M Simard, R K Panta, S T Bell, A P H Butler, and H Bouchard. Quantitative imaging perfor- mance of MARS spectral photon-counting CT for radiotherapy. Medical Physics, 47(8) :3423– 3434, 2020

  20. M Simard, A Lalonde, and H Bouchard. Parametrization of multi-energy CT projection data with eigentissue decomposition. Physics in Medicine & Biology, 65(15) :155001, 2020

  21. I Billas, H Bouchard, U Oelfke, D R Shipley, C A Gouldstone, and S Duane. Alanine dosimetry in strong magnetic fields : use as a transfer standard in MRI-guided radiotherapy. Physics in Medicine & Biology, 65(11) :115001, 2020

Disciplines

  • Physics
  • Medical Physics
  • Biomedical Engineering
  • Radiation Oncology
  • Applied Mathematics

Areas of expertise

  • Monte Carlo simulations
  • Imagerie médicale
  • Radiation therapy equipment
  • Interactions of particles and radiation with matter
  • Radiation detectors
  • Scattering of atoms and molecules
  • X-ray beams and x-ray optics
  • X-ray imaging
  • Charged-particle beams
  • Physical radiation effects, radiation damage
  • Biological and medical physics
  • Metrology