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Details of Grant 

EPSRC Reference: GR/L26780/01
Title: THE APPLICATION OF MRI GEL DOSIMETRY TO EVALUATE AND VERIFY NEW CONFORMAL RADIOTHERAPY TECHNIQUES
Principal Investigator: Webb, Professor S
Other Investigators:
Warrington, Mr A Shentall, Mr G Evans, Professor P
Oldham, Dr M Leach, Professor MO Smith, Dr T
Swindell, Professor W
Researcher Co-Investigators:
Project Partners:
University of Surrey
Department: Physics
Organisation: Institute of Cancer Research
Scheme: Standard Research (Pre-FEC)
Starts: 03 February 1997 Ends: 02 February 2000 Value (£): 145,764
EPSRC Research Topic Classifications:
Intelligent Measurement Sys.
EPSRC Industrial Sector Classifications:
Healthcare
Related Grants:
Panel History:  
Summary on Grant Application Form
The use of gel dosimeters to accurately measure 3D radiotherapy dose-distributions has only become possible in the last few years. Gel dosimetry offers radical improvement in the QA of radiotherapy treatment and an ideal method to evaluate state-of-the-art radiotherapy techniques. Such an evaluation cannot be adequately achieved by existing measurement techniques (diodes, film, ion-chambers, TLDs etc) as none yield a full 3D dose map, and most have insufficient accuracy. The need to accurately measure the 3D dose-distribution has become pressing due to the greatly increased precision of new intensity-modulated (IM) techniques. We are pioneering the development and implementation of IM radiotherapy and are the only centre in the UK with the capability to deliver IM tomotherapy treatment plans via the MIMiC (Multi leaf Intensity Modulating Collimator), and IM dynamic-therapy via a multi-leaf-collimator. In this project we will develop a gel dosimeter and MR imaging technique to accurately measure and map 3D dose distributions. The gel dosimeter will then be applied to evaluating IM radiotherapy treatment plans delivered via conventional, conformal, and new IM techniques. This evaluation and verification is an essential step prior to the clinical implementation of IM techniques.
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