Method and apparatus for real-time mechanical and dosimetric quality assurance measurements in radiation therapy

摘要

A method and device for real-time mechanical and dosimetric quality assurance measurements in radiation therapy provides a unified measurement of mechanical motion and radiation components of the machine. The device includes an imaging surface for receiving multiple energy sources. The imaging surface has an imaging plane positioned on a same plane as an isocenter of a medical accelerator. A camera measures and records data related to the multiple energy sources. A mirror system can be used to direct the multiple energy sources to the camera for further processing. However, in some instances the mirror system may not be necessary. Accordingly, a single device can be used to unify the measurement of mechanical motion and radiation component of the machine. The device can also include computer control in order to automate the movement of the device and/or automation of the QA protocol.

主权项

1. A device for unifying comprehensive real-time mechanical and dosimetric quality assurance measurements in radiation therapy, comprising:
a housing defining an internal space; an imaging surface for receiving multiple energy sources, said imaging surface being coupled to the housing such that said imaging surface is positioned on a same plane as a plane through an isocenter of a medical accelerator, and wherein the multiple energy sources comprise optical light sources and radiation fields; a mechanism for rotation directly coupled to the housing, such that the imaging surface rolls about an axis through the isocenter of the medical accelerator; a camera for measuring and recording data related to the multiple energy sources, wherein the camera is stationary with respect to the imaging surface; and a mirror system disposed within the internal space of the housing for directing the multiple energy sources from the imaging surface to the camera and said mirror system also being configured to maintain an imaging plane of the camera at the isocenter of the medical accelerator, and wherein the mirror system is configured to rotate about the axis through the isocenter of the medical accelerator with the housing.