Medical Physics Graduate Program Faculty

Colin Field

G. Colin Field, MSc, FCCPM

Clinical Professor, Division of Medical Physics, Department of Oncology, University of Alberta

Senior Medical Physicist, Dept. of Medical Physics, CCI

BSc (Co-op Physics: Waterloo-1980)
MSc (Physics: Alberta-1988)

Member: Canadian College of Physicists in Medicine
Fellow: Canadian College of Physicists in Medicine

Research Interests

Helical Tomotherapy

Commissioning and validation of this novel treatment and imaging device which combines techniques from spiral CT scanners with linear accelerators thus enabling new radiotherapy processes.

Inverse-planned Intensity Modulated Radiotherapy

Investigation of different inverse planning algorithms as far as convergence, quality and deliverability of solutions.

Outcome Analysis

quantification of tumor control and outcome complications as a function of dose delivered over a course of treatment. This requires the establishment of a dose-volume-time and outcome-complication-quality_of_life database.


Dose calculations, biological models, outcome analysis, error propagation.

Selected Publications

D. Robinson, D. Liu, S. Steciw, C. Field, H. Daly, S. Kumar, G. Fallone, M. Parliament, J. Amanie,
"Prospective Study to Evaluate the Accuracy and Inter-User Variability of the Clarity 3-Dimensional Ultrasound System for Verification during External Beam Radiation Therapy for Clinically Localized Prostate Cancer"
Journal of Applied Clinical Medical Physics. 13(4), 100-112 (2012).

N. Pervez, C. Small, M. MacKenzie, D. Yee, M. Parliament, S. Ghosh, A. Mihai, J. Amanie, C. Field, D. Murray, G. Fallone, R. Pearcey,
"Acute toxicity in high risk prostate cancer patients treated with androgen suppression and hypofractionated intensity modulated (IMRT),"
Int. Journal of Rad Oncol Biol Phys,76(1), pp. 57-64 (2010).

K. Joseph, A. Syme, C. Small, H. Warkentin, H. Quon, S. Ghosh, C. Field, N. Pervez, K. Tankel, S. Patel, N. Usmani, D. Severin, T. Nijjar, B.G. Fallone, J. Pedersen,
"A treatment planning study comparing helical tomotherapy with IMRT for treatment of anal cancer,"
Radiother Oncol, 94(1), pp. 60-66 (2010).

A. Syme. C. Kirkby, R. Mirzayans, M. Mackenzie, C. Field, B.G. Fallone,
"Relative biological damage and electron fluence in and out of a 6 MV photon field,"
Phys. Med. Biol. 54(12), pp. 6623-6633 (2009).

D .Yee, R. Pearcey, G. Dundas, J. Hanson, M. Mackenzie, D. Robinson, C. Field, L.Underwood, R. Urtasun, N. Pervez, B.G. Fallone,
"Dosimetric comparison of tomotehrapy versus 4-4 field pelvic box altered fractionation radiotherapy treatment plans for invasive squamous cell carcinoma,"
Cancer Therapy, 6, pp. 553-562 (2008).

K Breitman, S Rathee, C Newcomb, B Murray, D Robinson, C Field, H Warkentin, S Connors, M MacKenzie, P Dunscombe and B G Fallone,
"Experimental Validation of the Eclipse AAA Algorithm."
J. App. Clin. Med. Phys, 8(2), pp.76-92, Spring (2007).

R Scrimger, A Kanji, M Parliament, H Warkentin, C Field , N Jha, J Hanson,
"Correlation between Saliva Production and Quality of-Life Measurements in Head and Neck Cancer Patients Treated with Intensity-Modulated Radiotherapy."
Amer. J. Clin. Onc., 30(3):271-277, June 2007

C Kirkby, C Field, M MacKenzie, A Syme and B G Fallone,
"A Monte Carlo study of the variation of electron fluence in water from a 6 MV photon beam outside of the field."
Phys. Med. Biol. 52, pp. 3563-3578 (2007).

E.P. Saibishkumar, M. Parliament, N. Jha, M. Mackenzie, R. Scrimger, C. Field, B.G. Fallone,
"Sparing the parotid glands and surgically transferred submandibular gland with helical tomotherapy in post-operative radiation of head and neck cancer: A planning study,"
Radiotherapy and Oncology, 85, pp. 98-104 (2007).

S Kumar, M Parliament, N Jha, M Mackenzie, R Scrimger, C Field, B G Fallone,
"Sparing the parotid glands and surgically transferred submandibular gland with helical tomotherapy in post-operative radiation of head and neck cancer: A planning study."
Radiotherapy and Oncology, 2007 Oct;85(1):98-104.

S Damaraju, D Murray, J Dufour, D Carandang, S Myrehaug, G Fallone, C Field, R Greiner, J Hanson, C E Cass, M Parliament,
"Association of DNA Repair and Steroid Metabolism Gene Polymorphisms with Clinical Late Toxicity in Patients Treated with Conformal Radiotherapy for Prostate Cancer."
Clinical Cancer Research, 12(8), April, 2006

S D Thomas, M A Mackenzie, G C Field, A M Syme and B G Fallone,
"Patient Specific Treatment Verifications For Helical Tomotherapy Treatment Plans."
Med. Phys. 32(12), pp.3793-3800, 2005.

M van Vulpen, C Field, C P J Raaijmakers, M B Parliament, C H J Terhaard, M A MacKenzie, R Scrimger, J J W Lagendijk, B G Fallone,
"Comparing Step-and-Shoot IMRT with Dynamic Helical Tomotherapy IMRT plans for Head-and-Neck cancer."
Int. J. Radiation Oncology Biol. Phys., Vol 62, No 5, pp. 1535-1539, 2005

M Parliament, M Alidrisi, M Munroe, J Wolfaardt, R Scrimger, H Thompson, G C Field, E Kurien and K Hanson,
"Implications of Radiation Dosimetry of the Mandible in Patients with Carcinomas of the Oral Cavity and Nasopharynx Treated with Intensity Modulated Radiation Therapy."
Int. J. Oral Maxillofac. Surg 3, pp. 114-121, 2005.

R Scrimger, P Stavrev, M Parliament, G C Field, H Thompson, N Stavreva and B G Fallone,
"Phenomenologic Model Describing Flow Reduction for Parotid Gland Irradiation with Intensity-Modulated Radiotherapy: Evidence of Significant Recovery Effect."
Int. J. Rad Oncol Biol Phys., 60(1), pp. 178-185, 2004.

J Amanie, D Robinson, B Murray, C Field, B Warkentin, P Stavrev, R Hennig, W Roa,
"Comparison of dose-escalated and intensity-modulated three-dimensional conformal radiotherapy plans in patients with localized non-small-cell lung cancer."
Current Oncology, Vol 11, No 3, 2004

B Warkentin, P Stavrev, N Staverva, G C Field and B G Fallone,
"A TCP-NTCP estimation module using DVHs and known radiobiological models and parameter sets."
J. App. Clin. Med. Phys, 5(1), pp. 50-63, 2004.

M B Parliament, R A Scrimger, S G Anderson, E C Kurien, H K Thompson, G C Field, J Hanson,
"Preservation of oral health-related quality of life and salivary flow rates after inverse-planned intensity modulated radiotherapy (IMRT) for head-and-neck Cancer."
Int. J. Rad. Onc., Bio. Phy., Vol 58, No 3, pp 663-673, 2004

L J Underwood, B R Murray, D M Robinson, G C Field , W H Roa,
"An Evaluation of Forward and Inverse Radiotherapy Planning using Helax-TMS (version 6.0) for Lung Cancer Patients Treated with RTOG 93-11 Dose-Escalation Protocol."
Medical Dosimetry, Vol 28, No 3, pp. 167-170, 2003.

M A MacKenzie, M Lachaine, D Robinson, B Murray, B G Fallone, G C Field,
"Dosimetric verification of inverse planned step and shoot multileaf collimator fields from a commercial treatment planning system."
J. App. Clin. Med. Phys., Vol 3(2), pp. 97-109, 2002.

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