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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 — PhysiqueUniversité de Montréal
  • 2003 — MSc — Physique médicaleMcGill
  • 2001 — BSc — PhysiqueUniversité du Québec

Affiliations and responsabilities

University service and activities

Activities within organizations or entities of the institution

Teaching and supervision

Student supervision

Theses and dissertation supervision (Papyrus Institutional Repository)

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

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
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
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. Y Cervantes, J Duchaine, I Billas, S Duane, and H Bouchard. Monte carlo calcula- tion 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

  2. 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

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

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

  5. KB Niepel, M Stanislawski, M Wuerl, F Doerringer, M Pinto, O Dietrich, B Ertl-Wagner, A Lalonde, 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

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

  7. 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

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

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

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

  11. 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

  12. A Lalonde, Y Xie, B Burgdorf, S O’Reilly, WS Ingram, L Yin, W Zhou, L Dong, H Bou- chard, and K Teo. Influence of intravenous contrast agent on dose calculation in proton therapy using dual energy CT. Physics in Medicine & Biology, 64(12) :125024, 2019

  13. M Simard, A Lapointe, A Lalonde, H Bahig, and H Bouchard. The potential of photon- counting CT for quantitative contrast-enhanced imaging in radiotherapy. Physics in Medicine & Biology, 64(11) :115020, 2019

  14. I Billas, H Bouchard, U Oelfke, and S Duane. The effect of magnetic field strength on the response of Gafchromic EBT-3 film. Physics in Medicine & Biology, 64(6) :06NT03, 2019

  15. A Lourenço, H Bouchard, S Galer, G Royle, and H Palmans. The influence of nuclear interactions on ionization chamber perturbation factors in proton beams : FLUKA simulations supported by a Fano test. Medical physics, 46(2) :885–891, 2019

  16. A Lalonde, M Simard, C Remy, E Bär, and H Bouchard. The impact of dual-and multi-energy CT on proton pencil beam range uncertainties : a Monte Carlo study. Physics in Medicine & Biology, 63(19) :195012, 2018

  17. E Bär, P Andreo, A Lalonde, G Royle, and H Bouchard. Optimized I-values for the use with the Bragg additivity rule and their impact on proton stopping power and range uncertainty. Physics in Medicine & Biology, 63(16) :165007, 2018

  18. A Lalonde, C Remy, M Simard, and H Bouchard. Unsupervised classification of tis- sues composition for Monte Carlo dose calculation. Physics in Medicine & Biology, 63(15) :15NT01, 2018

  19. A Lapointe, A Lalonde, H Bahig, J-F Carrier, S Bedwani, and H Bouchard. Robust quantitative contrast-enhanced dual-energy CT for radiotherapy applications. Medi- cal physics, 45(7) :3086–3096, 2018

  20. C Remy, A Lalonde, D Béliveau-Nadeau, J-F Carrier, and H Bouchard. Dosimetric impact of dual-energy CT tissue segmentation for low-energy prostate brachytherapy : a Monte Carlo study. Physics in Medicine & Biology, 63(2) :025013, 2018

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