Speaker: Dr. Hui Khee Looe, Deputy Head of Medical Physics, Pius-Hospital, Oldenburg, Germany
Surface-guided radiation therapy (SGRT) has evolved into standard-of-care in modern radiotherapy practices. Besides offering dose-less, marker-free patient positioning guidance, such a system allows for real-time monitoring and advanced respiratory motion management. The presentation describes the testing, implementation, and clinical evaluation of the novel SGRT system LUNA 3D (LAP, Germany). The system was installed at a C-arm linac (Synergy, Elekta). The acceptance tests were implemented according to the ESTRO-ACROP guideline. Both static and dynamic accuracies have been evaluated using the EASY CUBE phantom in combination with a translational and dynamic platform. The End-to-End (E2E) testing using the RUBY phantom (PTW, Germany) was adapted to accommodate the laser-free positioning. Clinical evaluations were performed by comparing the patient positioning using LUNA 3D and lasers and the necessary CBCT-based corrections. All test results lie within the manufacturer’s specifications and ESTRO guideline tolerances. A clinical comparison of LUNA 3D with lasers and CBCT positionings shows the system can provide accurate patient positioning guidance.
More info about LUNA 3D: https://www.lap-laser.com/products/luna-3d/