IMRT 2018

patient(positioning

Two*arms*(65*patients): • Patients*were*conventionally* positioned*with*laser/tattoos • Patients*were*positioned*with* Catalyst*(color map)* • The*mean*spatial*vector*V dev offset*was*4.5* 4.3*mm*(1SD)* for*conventional*setHup* (laser/tattoos)*and*2.6 1.9* mm*for*surface*based*setHup* (Catalyst)*(p<0.01).*

Cumulative*histogram.*Showing*the*proability* to*position*the*patient*within*a*given*setup* deviation.

Surface(scanning Laser/tattoos

M.#Kügele et#al.#Manuscript submitted,#2018