Trajectory Based Treatment Planning and Delivery for Cranial Radiosurgery


James Robar, PhD, from Queen Elizabeth II Health Science Centre at Dalhousie University in Halifax, Canada, discusses trajectory-based, also sometimes referred to as 4Pi delivery, treatment planning and delivery in cases of cranial radiosurgery. He begins by explaining the four algorithmic considerations of trajectory-based planning: Overlap between PTV and OAR, relative depth, QUANTEC dose weighting and promoting rapid dose fall-off. He then discusses in detail the generated overlap maps and how to navigate and optimize beam trajectories through them, as well as delivering the created plan.

About the speaker

James Robar, PhD

James Robar, PhD
Dalhousie University, Canada

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