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      Development of a 6DOF robotic motion phantom for radiation therapy.

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          Abstract

          The use of medical technology capable of tracking patient motion or positioning patients along 6 degree-of-freedom (6DOF) has steadily increased in the field of radiation therapy. However, due to the complex nature of tracking and performing 6DOF motion, it is critical that such technology is properly verified to be operating within specifications in order to ensure patient safety. In this study, a robotic motion phantom is presented that can be programmed to perform highly accurate motion along any X (left-right), Y (superior-inferior), Z (anterior-posterior), pitch (around X), roll (around Y), and yaw (around Z) axes. In addition, highly synchronized motion along all axes can be performed in order to simulate the dynamic motion of a tumor in 6D. The accuracy and reproducibility of this 6D motion were characterized.

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          Author and article information

          Journal
          Med Phys
          Medical physics
          Wiley-Blackwell
          2473-4209
          0094-2405
          Dec 2014
          : 41
          : 12
          Affiliations
          [1 ] Department of Radiation and Cellular Oncology, The University of Chicago, Chicago, Illinois 60637-1470.
          Article
          10.1118/1.4900828
          4235649
          25471951

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