Nuclear Medicine & Radiation Therapy

Satyaseelan Packianathan

Publications

• Research Article
  What do Dosimetric Errors Encountered in Prostate Implant Brachytherapy tell us about α/β?
  Author(s): Paul Mobit, Ephraim Agyingi, Satyaseelan Packianathan and Claus Chunli YangPaul Mobit, Ephraim Agyingi, Satyaseelan Packianathan and Claus Chunli Yang
  
  Objective: To determine the α/β ratio of prostate cancer using the linear quadratic model taking into account different radiation prescription doses and RBE for low energy gamma rays. Methods and material: The linear quadratic model was used to evaluate the α/β ratio for prostate cancer taking into account the dosimetric errors resulting from seed displacements in prostate permanent implant brachytherapy with 125I and 103Pd. The study assessed the variability of the α/β ratio with different prescribed external beam radiation therapy doses and published values of the relative biological effectiveness (RBE) for both 125I and 103Pd. The biological effective dose (BED) for prostate implant brachytherapy was equated to the external beam radiation therapy dose to derive an equation for α.. Read More»
  DOI: 10.4172/2155-9619.1000214

  Abstract PDF