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SUMMARY:Calorimetry with humans: measuring delivered dose in radiotherapy 
 treatment of cancer - Karl Harrison and Ping Lin Yeap (Cambridge)
DTSTART:20160517T140000Z
DTEND:20160517T150000Z
UID:TALK65557@talks.cam.ac.uk
CONTACT:Rolf Oldeman
DESCRIPTION:Cancer radiotherapy is planned with the aim of delivering a le
 thal dose of radiation to a tumour\, while keeping doses to nearby healthy
  organs at an acceptable level.  Organ movements and shape changes\, over 
 a course of treatment typically lasting four to eight weeks\, can result i
 n delivered doses being different from planned.  The VoxTox project aims t
 o measure delivered dose\, at the level of millimetre-scale volume element
 s (voxels)\, and to correlate with short- and long-term side effects (toxi
 city).  The techniques developed may be used for dose monitoring in a clin
 ical setting\, and allow improved treatment strategies. \n \nMeasuring del
 ivered dose in radiothearpy treatment is the problem of understanding ener
 gy depositions by X-rays in a human calorimeter.  The latter is characteri
 sed by complicated geometries\, inhomogeneities in construction materials\
 , and severe alignment difficulties.  This seminar outlines progress in th
 e VoxTox project in measuring doses to organs at risk of damage during tre
 atment for prostate cancer\, and for cancers of the head and neck.\n
LOCATION:Ryle Seminar Room (930) 
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