Assistant Professor

Brian Keller

Medical Physicist

MSc, PhD, FCCPM

Publications

Location

Odette Cancer Centre - Sunnybrook Health Sciences Centre

Address

2075 Bayview Avenue, Toronto, Ontario Canada M4N 3M5

Clinical Interests

Permanent Breast Seed Implant Brachytherapy, High Precision Radiation Therapy using Novel X-Ray Energies, SBRT, High Dose Rate Brachytherapy, Image guided brachytherapy

Accepting

Please contact Faculty Member for more information

Qualification

BSc (Hons.), Physics, University of Waterloo
MSc, Radiation Physics, McGill University
PhD, Radiation Medicine/Medical Physics, University of Toronto
DABR, diplomate of the American Board of Radiology in therapeutic radiologic physics
FCCPM, Fellow of the Canadian College of Physicists in Medicine

Professional Memberships

Member, Canadian Organization of Medical Physicists (COMP)
Member, American Association of Physicists in Medicine (AAPM)
Member, International Radiation Physics Society (IRPS)

Research Synopsis

Absolute radiation dosimetry of millimeter size fields using MR spectroscopy
Characterization of millimeter size radiation fields using polymer films and digital microscopy
Intermediate energy x-rays for high precision small field radiation therapy
Gold nanoparticle radiosensitization
Assessing different radionuclides for permanent seed brachytherapy

Recent Publications

Keller BM, Bruynzeel A, Tang C, Swaminath A, Kerkmeijer L, Chu William. Adaptive magnetic resonance-guided stereotactic body radiotherapy – the next step in the treatment of renal cell carcinoma. Front Oncol. 2021 May 11;11:634830.

Roberts D, Sandin C, Vesanen PT, Lee H, Hanson IM, Nill S, Perik T, Lim SB, Vedam S, Yang J, Woodings SW, Wolthaus JWH, Keller BM, Budgell G, Chen X, X Allen Li. Machine QA for the Elekta Unity system: A report from the Elekta MR-linac consortium. Med Phys. 2021 May;48(5):e67-e85.

Orlando N, Crosby J, Glide-Hurst C, Culberson W, Keller B, Sarfehnia A. Experimental determination of magnetic field quality conversion factors for eleven ionization chambers in 1.5 T and 0.35 T MR-linac systems. Med Phys 51(4), 2998-3009, 2024.

Lim-Reinders S, Keller BM, Sahgal A, Chugh B, Kim A. Measurement of surface dose in an MR-Linac with optically stimulated luminescence dosimeters for IMRT beam geometries. Med Phys, April 17, Published Online, Ahead of Print, 2020.

Lawrence L, Chan R, Chen H, Keller B et al. Accuracy and precision of apparent diffusion coefficient measurements on a 1.5 T MR-Linac in central nervous system tumour patients. Radiother Oncol. 2021 Nov;164:155-162.

Stewart J, Sahgal A, Hudson J, Lau A, Keller B, Detsky J, Soliman H, Tseng C-L, Myrehaug S, Ruschin M. The migration distance: a unidirectional distance metric for region-of-interest comparisons. Med Phys 51(5), 3597-3603, 2024

Al-Ward S, Wronski M, Ahmad S, Myrehaug S, Chu W, Sahgal A, Keller B. The radiobiological impact of motion tracking of liver, pancreas and kidney SBRT tumors in a MR-linac. Phys Med Biol 63(21), 215022, 2018.

Ahmad S, Sarfehnia A, Paudel M, Kim A, Hissoiny S, Sahgal A, and Keller B. Evaluation of a commercial MRI linac based Monte Carlo dose calculation algorithm with Geant4. Med Phys 43(2), 894 - 907, 2016.

Appointments

Assistant Professor, Department of Radiation Oncology, University of Toronto
Acting Head of Physics, Sunnybrook Odette Cancer Centre
Site-Leader, Physics Residency Training Program, Sunnybrook Odette Cancer Centre