Robotic patient positioning for radiation therapy delivery at varying source to target distances

Stanley Chien, Robert Timmerman, Lech Papiez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

On a linear accelerator for radiation therapy, the radiation source is installed on a gantry that rotates about an isocenter. During radiation therapy, the cancer of a patient is positioned at the system isocenter so that the cancer can be irradiated from different angles as the gantry rotates. As the radiation dose controlling technique improves, more attachments are added to the gantry so that the physical space for positioning a patient becomes smaller and the motion range of the gantry is more restricted. The reduced space creates difficulty for positioning large sized patients. One method for solving this problem is to put the patients away from the radiation source which makes the cancer of the patients not located at the isocenter. This paper describes a method for calculating the patient location to ensure the cancer to be on the path of the radiation beam while not at the isocenter. The method also compensates the vertical position error caused by bending of the patient support couch. The method has been successfully tested on the linear accelerator with a dummy.

Original languageEnglish (US)
Title of host publicationIMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings
Pages237-242
Number of pages6
StatePublished - Dec 1 2008
EventInternational Multi-Conference on Engineering and Technological Innovation, IMETI 2008 - Orlando, FL, United States
Duration: Jun 29 2008Jul 2 2008

Publication series

NameIMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings
Volume2

Other

OtherInternational Multi-Conference on Engineering and Technological Innovation, IMETI 2008
CountryUnited States
CityOrlando, FL
Period6/29/087/2/08

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Keywords

  • Radiation therapy
  • Robot

ASJC Scopus subject areas

  • Management of Technology and Innovation

Cite this

Chien, S., Timmerman, R., & Papiez, L. (2008). Robotic patient positioning for radiation therapy delivery at varying source to target distances. In IMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings (pp. 237-242). (IMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings; Vol. 2).