Deformable image registration (DIR) is useful in many aspects of radiation therapy, including contouring, dose deformation, dose tracking and adaptive planning. DIR functionality is incorporated into the RayStation treatment planning system, which means it is integrated into the planning workflow, without the need to export and transfer data between different programs. Research collaborations with partners such as Princess Margaret Cancer Center in Toronto, Canada, have ensured that RayStation meets customers’ needs in a variety of workflow scenarios.

Deformable registration is an important aspect of adaptive therapy and RaySearch has dedicated considerable research and development resources to pioneering adaptive planning. From the outset, RayStation was developed with the infrastructure necessary for managing multiple data sets and modalities with various deformation fields. Currently, two algorithms for deformable image registration (DIR) are available in RayStation, giving the clinician a high degree of flexibility when it comes to managing image modalities and datasets of varying image quality. These are outlined in detail below.

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