Advanced Physics for Brachytherapy 2018

In contrast to ERT, where the set-up of the real Beams (irradiation) is based on: • Immobilization of the patient as in planning process (CT) • (re)Positioning of the patient using the RP and the Machine Coordinate System (Laser Projection of Isocentre) ➔ RP = Laser-Isocenter • Fully automatic shift: Plan-Isocenter ➔ Machine-Isocenter • Imaging-based (2D/3D, SIG) verification of Anatomy/Target position • Fully automatic set-up of the beams and MLC-configurations

RP

RTP

Plan-Isocenter