Who is David Jaffray?
David A. Jaffray PhD is a Canadian medical physicist and Senior Scientist in the Division of Biophysics and Bioimaging at the Ontario Cancer Institute. He is also a professor and Vice Chair in the University of Toronto's Department of Radiation Oncology. He is the inventor, together with John Wong, of on-line volumetric kv-imaging guidance system for radiation therapy.
Jaffray's work focuses on the development of novel imaging systems and concepts to improve the precision of therapy by generating images at the time of therapy for the purpose of guiding the treatment delivery. Recent developments have included the construction of megavoltage and kilovoltage imaging systems based upon high-performance charged coupled device cameras, prototyping, and evaluation of amorphous-silicon based large-area detectors for megavoltage work.
In addition, a kilovoltage cone-beam computed tomography system has been developed. These systems have been integrated with the megavoltage treatment devices to improve the precision with which the therapy could be executed without the interference of mechanical immobilization systems.
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