3D catheter reconstruction in HDR prostate brachytherapy for pre-treatment verification using a flat panel detector
Ryan L Smith, Annette Haworth, Vanessa Panettieri, Jeremy L Millar, Rick D Franich
Physica Medica | ELSEVIER SCI LTD | Published : 2017
PURPOSE: High dose rate prostate brachytherapy is a widely-practiced treatment, delivering large conformal doses in relatively few treatment fractions. Inter- and intra-fraction catheter displacements have been reported. Unrecognized displacement can have a significant impact on dosimetry. Knowledge of the implant geometry at the time of treatment is important for ensuring safe and effective treatment. In this work we demonstrate a method to reconstruct the catheter positions pre-treatment, using a 'shift' imaging technique, and perform registration with the treatment plan for verification relative to the prostate. METHODS: Two oblique 'shift' images were acquired of a phantom containing bra..View full abstract
This research received funding from the Radiation Oncology section of the Australian Government Department of Health and Ageing.