An optimised IGRT correction vector determined from a displacement vector field: A proof of principle of a decision-making aid for re-planning

Abstract

The knowledge of the deformation of the anatomy allows the determination of an optimised rigid correction vector using our method. The method ensures controlled mapping of the VOIs despite small deformations. If no optimised vector can be determined, re-planning should be considered. Thus, our method can also serve as a decision-making aid for re-planning.