YY 9706.268-2022 Medical electrical equipment—Part 2-68:Particular requirements for the basic safety and essential performance of X-ray-based image-guided radiotherapy equipment for use with electron accelerators,light ion beam therapy equipment and radionuclide beam therapy equipment
YY 9706.268-2022 Medical electrical equipment—Part 2-68:Particular requirements for the basic safety and essential performance of X-ray-based image-guided radiotherapy equipment for use with electron accelerators,light ion beam therapy equipment and radionuclide beam therapy equipment
Basic Information
Scope
This document specifies the basic safety and performance requirements for X-ray imaging-guided radiotherapy (X-IGRT) equipment used with external beam therapy (EBT) systems.
This document covers the safety of kV and MV X-ray imaging devices intended for image-guided radiotherapy (IGRT) applications, where the geometric relationship between the EBT and the X-ray imaging device is known. It addresses the communication and interaction between the EBT and the X-ray imaging device. The X-ray imaging device may be directly connected to the EBT, or not directly connected but located in the same radiation shielding area, and is intended solely for use with the EBT.
This document applies to real-time X-IGRT, online X-IGRT, and offline X-IGRT equipment. It covers methods to reduce the risk of over-reliance on X-IGRT external beam systems (X-IGRT EBS). For example, manufacturers provide an interactive interface for users to interact with the system's recommended corrections.
Where a chapter or section is specifically intended to apply to X-IGRT EBT systems, this will be indicated in the text. Otherwise, the chapter or section applies only to X-IGRT equipment.
This document includes type tests and field tests, which apply respectively to manufacturers of X-IGRT EBT systems and certain installation aspects, with the aim of achieving:
● Normal operation by operators with the skills required for specific medical applications, such as static radiotherapy and mobile beam radiotherapy, when appropriately licensed or authorized;
● Maintenance according to the recommendations in the user manual;
● Compliance with regular quality assurance performance and calibration checks by qualified personnel.
Note: In this document, all installation information refers to installation on the premises of the responsible party.