William Parker

Associate Member

Medical Physics Unit, McGill University

Other Appointments:

Clinical Chief, Department of Medical Physics, McGill University Health Centre (MUHC)

Chief, Residency Training Program in Radiation Oncology Physics, MUHC

Assistant Professor, Department of Oncology


Cedars Cancer Centre, Medical Physics, DS1.7141
McGill University Health Centre - Glen Site
1001 boul. Décarie
Montréal, QC H4A 3J1


514 934-8052


william.parker [at] mcgill.ca



Certification & honors

FCCPM, Medical Physicist (New York State Licensure - Therapeutic Radiology)

Clinical research:

Pediatric radiotherapy: Conformal therapy and dose reduction to non-target organs in pediatric patients, in particular those receiving cranial spinal axis irradiation.  Modeling and risk prediction of long term effects of radiation for the pediatric and young adult population comparing competing treatment modalities. Quality assurance and dosimetric measurements of IMRT beams: Selection of adequate dosimeters and measurement conditions for IMRT quality assurance. Multi-institutional cooperative group clinical trial technical design and institutional credentialing.

Research focus:

Pediatric radiotherapy, quality assurance and dosimetric measurements of IMRT.

Key publications:

W. Parker, C.R. Freeman, A simple technique for craniospinal radiotherapy in the supine position, Radiother. Oncol. 78, 217-222 (2006).

W. Parker, E. Filion, D. Roberge, C.R. Freeman, Intensity-modulated radiotherapy for craniospinal irradiation: target volume considerations, dose constraints, and competing risks, Int. J. Radiat. Oncol. Biol. Phys. 69, 251-257 (2007).

D. Fraser, W. Parker,  J. Seuntjens, Characterization of cylindrical ionization chambers for patient specific IMRT QA, J. Appl. Clin. Med. Phys. 10, 2923 (2009).

W. Parker, M. Brodeur, D. Roberge, C.R. Freeman, Standard and nonstandard craniospinal radiotherapy using helical tomotherapy, Int. J. Radiat. Oncol. Biol. Phys 77, 926-931 (2010).

Y. Cui, J.M. Galvin, W. Parker, S. Breen, F.F. Yin, J. Cai, L.S. Papiez, X.A. Li, G. Bednarz, W. Chen, Y. Xiao, Implementation of remote 3-dimensional image guided radiation therapy quality assurance for radiation therapy oncology group clinical trials, Int. J. Radiat. Oncol. Biol. Phys. (2012).


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