Recalculation of dose for each fraction of treatment on TomoTherapy.

  • Thomas, Simon J
  • Romanchikova, Marina
  • Harrison, Karl
  • Parker, Andy
  • Bates, Amy M
  • Scaife, Jessica E
  • Sutcliffe, Michael
  • Burnet, Neil
Publication date
January 2016
Publisher
Br J Radiol

Abstract

OBJECTIVE: The VoxTox study, linking delivered dose to toxicity requires recalculation of typically 20-37 fractions per patient, for nearly 2000 patients. This requires a non-interactive interface permitting batch calculation with multiple computers. METHODS: Data are extracted from the TomoTherapy(®) archive and processed using the computational task-management system GANGA. Doses are calculated for each fraction of radiotherapy using the daily megavoltage (MV) CT images. The calculated dose cube is saved as a digital imaging and communications in medicine RTDOSE object, which can then be read by utilities that calculate dose-volume histograms or dose surface maps. The rectum is delineated on daily MV images using an implementation of the ...

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