Gamma Knife Center, Washington Hospital, Fremont, CA, 94538, USA.
Department of Radiation Oncology, Alpert Medical School of Brown University, Providence, RI, 02903, USA.
Med Phys. 2021 Jul;48(7):e733-e770. doi: 10.1002/mp.14831.
The American Association of Physicists in Medicine (AAPM) formed Task Group 178 (TG-178) to perform the following tasks: review in-phantom and in-air calibration protocols for gamma stereotactic radiosurgery (GSR), suggest a dose rate calibration protocol that can be successfully utilized with all gamma stereotactic radiosurgery (GSR) devices, and update quality assurance (QA) protocols in TG-42 (AAPM Report 54, 1995) for static GSR devices. The TG-178 report recommends a GSR dose rate calibration formalism and provides tabulated data to implement it for ionization chambers commonly used in GSR dosimetry. The report also describes routine mechanical, dosimetric, and safety checks for GSR devices, and provides treatment process quality assurance recommendations. Sample worksheets, checklists, and practical suggestions regarding some QA procedures are given in appendices. The overall goal of the report is to make recommendations that help standardize GSR physics practices and promote the safe implementation of GSR technologies.
美国医学物理学家协会（AAPM）成立了任务组 178（TG-178），以执行以下任务：审查体模内和空气中的伽玛立体定向放射外科（GSR）校准协议，提出一种剂量率校准协议，可成功用于所有伽玛立体定向放射外科（GSR）设备，并更新 TG-42（AAPM 报告 54，1995 年）中用于静态 GSR 设备的质量保证（QA）协议。TG-178 报告建议了一种 GSR 剂量率校准形式，并为常用于 GSR 剂量学的电离室提供了实施该形式的表格数据。该报告还描述了 GSR 设备的常规机械、剂量学和安全检查，并提供了治疗过程质量保证建议。附录中给出了关于一些 QA 程序的示例工作表、检查表和实用建议。该报告的总体目标是提出建议，帮助标准化 GSR 物理实践并促进 GSR 技术的安全实施。
