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Requirements for Online Adaptive RT
Daily volumetric imaging (CBCT, in-room CT, onboard MRI …)
Fast and robust image segmentation methods
Fast re-planning
Work in progress
MRIdian
Hybrid methods (e.g. aperture morphing, segment optimization)
Plan-library based methods
Use a pre-treatment established motion model to compute
configurations of the target volume and organs at risk
Simple method: margin-of-the-day
Fast, robust, highly automated, and failsafe