From October 21 – 25, the 6th International Symposium on Focused Ultrasound (FUS) takes place in Reston (Virginia, USA). At the worldwide leading forum Prof. Andreas Melzer presents the topics of the SONO-RAY research group: “Focused ultrasound-hyperthermia and radiation therapy for combined treatment of brain and prostate tumors” and “Concepts for robot-assisted focused ultrasound to support radiation therapy”.