2017_SBRT_Course Book

Auto Beam Hold package

• Part of TrueBeam ® (TB) 2.0 and onwards

• ABH consists of the following steps: 1. Triggered Imaging (TI): – Respiratory gating, at beam on/off – MU – Gantry angle (only for RA) – Time, minimum interval = 3 sec

2. Auto detection of fiducially markers on TI (AD) 3. Beam hold (BH) option to control state of treatment beam based on AD

Towards PTV margin reduction for prostate using intrafraction motion correction with online kV imaging and autodetection of implanted gold seeds T. Rosario, L. van der Weide, M. Admiraal. Submitted