Associated member of MPU
Medical Physics Unit
Other appointments:
Université de Montréal,
département de radiologie et faculté de médicine
chargé d’enseignement. clinique
| Address: | Hôpital Maisonneuve-Rosemont |
| Telephone: | 514-252-3400 x 4071 |
| E-mail: | |
| Education: | Ph.D. in biophysics, 1989, University of Montreal M.Sc. in medical physics, 1981, Warsaw University |
| Certification & honors | MCCPM, COMP, since 2001 FCCPM, COMP, since 2003 |
| Clinical research: | 1) Dosimetry of TBI treatments, development of a reusable compensator for the lung, neck and head region. This new tissue compensator should enable better dose control to the lungs and also improve overall patient dose distributions. 2) Dosimetry of small radiation fields, such as those used in stereotactic treatments of small volume tumors by means of IMRT and VMAT, i.e. non-coplanar multi-target brain treatments. This project involves two steps: a) the development and testing of different phantom/detector combinations in order to establish the most appropriate one for validation of dose delivery and b) development of a new Pinnacle model for small radiation fields by applying de-convolution methods to the measured dosimetric data set. The resulting Pinnacle model should be more precise for the dosimetry of small lesions. 3) In-vivo dosimetry, the aim of this project is to develop a quick and reliable multi-detector ‘in-vivo’ dosimetry system for patients that are treated with photon and electron beams. Dose confirmation is carried out during the treatment, by means of ‘in-situ’ measurements with TLDs, diodes or NanoDots. ‘In vivo’ dosimetry is requested in two situations: a) when the treated patient shows clear dose over-response symptoms and b) when delivery of the exact dose is critical. So far, we have used ‘in vivo’ dosimetry for TBI treatments, head and neck IMRT treatments, eye treatments with electron beams as well as various body cavities and the treatment of other sites. |
| Research focus: | TBI, dosimetry of small radiation fields and ‘In-vivo’ dosimetry |
| Key publications: | 1. M Serban, J Seuntjens, E. Roussin, J-R Tremblay, W Wierzbicki: Clinical Implementation of Monte Carlo designed patient-specific compensators for 60Co TBI treatments. ASTRO meeting 2011, Miami Beach, abstract 2011-A-1145. 2. V Leduc, C Furstoss, P Pater, P Munger, W Wierzbicki, 18 MV X-Ray Beam Commissioning with the IC Profiler: A Fast 3D Relative Dosimetry Technique Using an Ion Chamber Array in a Solid Tissue-Equivalent Phantom, Medical Physics, Vol. 38, No6, June 2011 3. M Serban, J Seuntjens, E. Roussin, J-R Tremblay, W. Wierzbicki : Modular patient-specific compensator for Co60 TBI treatments based on MC design, Medical Physics, Vol. 38, No6, June 2011 |