X-ray or gamma ray systems or devices – Accessory – Alignment
Reexamination Certificate
2008-02-14
2009-10-20
Kao, Chih-Cheng G (Department: 2882)
X-ray or gamma ray systems or devices
Accessory
Alignment
C378S065000, C378S207000, C250S252100
Reexamination Certificate
active
07604405
ABSTRACT:
A method and apparatus for quality assurance of an image guided radiation treatment delivery system. A quality assurance (“QA”) marker is positioned at a preset position under guidance of an imaging guidance system of a radiation treatment delivery system. A radiation beam is emitted from a radiation source of the radiation treatment delivery system at the QA marker. An exposure image of the QA marker due to the radiation beam is generated. The exposure image is then analyzed to determine whether the radiation treatment delivery system is aligned.
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Earnst Eric
Kuduvalli Gopinath
Main William
Accuray Incorporated
Blakely , Sokoloff, Taylor & Zafman LLP
Corbett John M
Kao Chih-Cheng G
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