Advanced Brachytherapy Physics - Vienna 2016

Differences between two methods ‘adding 3D Distributions’ versus ‘adding Parameters’

Bladder

Rectum

HR-CTV

without

without

without

with paraBoost

with paraBoost

with paraBoost

PDR

1.5% 9.1%

-0.5% 2.4% -0.2% 0.8%

avg

1.7% 6.2%

1.0% 3.3%

0.6% 1.0%

SD

Is adding parameters a valid approximation?

Yes, provided no EB boost!

Provided by Astrid de Leeuw / van de Kamer et al. Radiother Oncol 2010