Proton Radiotherapy Verification and Dosimetry Applications

Slide 1


Prof. Phil Evans

Project Co investigator ; University of Surrey. 

Phil EvansPhil has a research interest in the application of physics and engineering to medical imaging, particularly with application to planning radiotherapy and maximising its accuracy of delivery. Phil joined The Centre for Vision Speech and Signal Processing (CVSSP) in June 2012 as Professor of Medical Radiation Imaging and with a keen interest in working with my new colleagues to apply image vision and analysis methods to these important medical imaging problems.

Phil has a BSc in Physics for Aston University and a DPhil in Physics from The Queen’s College and the Nuclear Physics Laboratory in Oxford. Phil then joined The Joint Physics Department of The Institute of Cancer Research and Royal Marsden Hospital and then led a team there for some years working on imaging research in radiotherapy before joining CVSSP.

Previous projects have developed several new aspects of imaging in the clinic. These include: megavoltage CT imaging on a radiotherapy treatment machine for imaging soft tissue; development of sensors with very high quantum efficiency sensors for low dose megavoltage x-ray imaging; on-line dosimetry using imaging of the radiotherapy treatment beam allowing 3D treatment dose verification and the development of methods to improve the dose distribution; the application of CMOS active pixel sensors for rapid, low dose verification of complex treatments such as intensity modulated radiotherapy (IMRT) and volume modulated radiotherapy; and the development of methods to optimise the imaging characteristics of the treatment beam (in collaboration with Elekta).

This work has led to several clinical trials including the first demonstration of using an electronic imaging device for on-line intervention to correct a patient’s set-up in pelvic cancer patients, the first patient imaging using an optimised imaging beam for improved tissue visualisation in head and neck cancer patients and the first randomised trial demonstrating the benefits of IMRT for breast cancer patients. These projects were carried out with Professors David Dearnaley, Chris Nutting and John Yarnold at The Institute of Cancer Research/Royal Marsden Hospital.


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