Research Interests

Research Interests

Quality and Safety in Intensity Modulated Radiotherapy (IMRT) Planning and Delivery.

IMRT is a radiotherapy technique that is widely used to either escalate dose to target structures or to limit dose to organs at risk. My research interests stem from our clinical efforts to maintain a high level of quality and safety while accommodating the increased complexity associated with IMRT planning and delivery. Specific projects have included the use of the electronic portal imager for patient specific quality assurance; dosimetry of IMRT fields; and development of IMRT techniques.

Publications

Recent Publications

Shahin Fattahi and Orest Z. Ostapiak, An opposed matched field IMRT technique for prostate cancer patients with bilateral hip prosthesis, submitted to Journal of Applied Clinical Medical Physics, 2010.

Rao F.H. Khan, Orest Z. Ostapiak, Joe J. Szabo, Modeling electronic portal imager response for pre-treatment verification of IMRT fields, Journal of Applied Clinical Medical Physics, 9 (4), 2008.

Students Supervised

Students Supervised

• Andrew Meikle (MSc) - Characterization of radiation leakage through multileaf collimator pair in-field abutments
• Daniel Sopher (MSc) - A model of ion chamber matrix response implemented on a commercial treatment planning system.

Courses Taught

Courses Taught

• MedRadSci 2W03