Measurements of intrafraction motion and interfraction and intrafraction rotation of prostate by three-dimensional analysis of daily portal imaging with radiopaque markers.

@article{Aubry2004MeasurementsOI,
  title={Measurements of intrafraction motion and interfraction and intrafraction rotation of prostate by three-dimensional analysis of daily portal imaging with radiopaque markers.},
  author={J F Aubry and Luc Beaulieu and L Girouard and Sylviane Aubin and Daniel Tremblay and Jacques Laverdi{\`e}re and {\'E}ric Vigneault},
  journal={International journal of radiation oncology, biology, physics},
  year={2004},
  volume={60 1},
  pages={30-9}
}
PURPOSE To measure the interfraction and intrafraction motion of the prostate during the course of external beam radiotherapy using a video electronic portal imaging device and three-dimensional analysis. METHODS AND MATERIALS Eighteen patients underwent implantation with two or three gold markers in the prostate before five-angle/11-field conformal radiotherapy. Using CT data as the positional reference, multiple daily sets of portal images, and a three-dimensional reconstruction algorithm… CONTINUE READING