Research Masterclass in Radiotherapy Physics 2017

Some Remarks on Classical IGRT

1. State of the art is online setup corrections for tumors that translate or rotate combined with intra-fraction monitoring or correction 2. New is to use dynamic MLC for real-time tracking 3. IGRT is still challenging for tumors that are poorly visible (abdomen) => implant fiducials or use MRI or in-room CT 4. Not discussed here is the Calypso tracking system, which puts beacons in the tumor