System Toward Automation in Radiotherapy Treatment: START

Andrew Y. S. Cheng; Kenneth Yik Pan Tsoi

doi:10.1117/12.189053

6 October 1994 System Toward Automation in Radiotherapy Treatment: START

Andrew Y. S. Cheng, Kenneth Yik Pan Tsoi

Proceedings Volume 2355, Sensor Fusion VII; (1994) https://doi.org/10.1117/12.189053
Event: Photonics for Industrial Applications, 1994, Boston, MA, United States

Abstract

START is a new automation system invented for nasopharyngeal carcinoma treatment. A laser scanner system capable of non-contact digitization of 3D surface is used to digitize the contours of the patient's face, shoulder and special landmark reference features of the patient. These features are stored in the computer in 3D digitized format. The digitized facial features with traced landmark reference features are used for fabrication of a true sized wood-particle laminates mould by a computer numerical controlled milling system. A Cobex mask is formed on this mould by using vacuum forming technique. With an image analysis and computer aided design system, the X-ray film with treatment window marked is traced automatically and converted to match the prescanned 3D information. A computer controlled 6-axis robot can precisely mark out the required areas on the Cobex cast for treatment. Finally, the patient receives radiotherapy treatment with the Cobex case as a positioning registration device. The new system will replace the manual procedure with better patient comfort, higher efficiency and enhanced accuracy.

Citation Download Citation

Andrew Y. S. Cheng and Kenneth Yik Pan Tsoi "System Toward Automation in Radiotherapy Treatment: START", Proc. SPIE 2355, Sensor Fusion VII, (6 October 1994); https://doi.org/10.1117/12.189053

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