中国医疗设备Issue(3)：98-100,97,4.DOI:10.3969/j.issn.1674-1633.2015.03.030
模拟定位机影像工作站在三维适形放射治疗计划射野位置验证中的应用
Application of the Radiotherapy Simulator Image Workstation in Position Veriifcation of Irradiation Fields in the 3D-CRT Plans
彭顺有 1谢宝君1
作者信息
- 1. 武汉大学人民医院 放射科，湖北武汉430060
- 折叠
摘要
Abstract
Objective To explore the effectiveness of application of the radiotherapy simulator image workstation in position veriifcation of irradiation ifelds in the 3D-CRT (Three Dimensional Conformal Radiotherapy) plans. Methods Comparisons between verification field images generated by the radiotherapy simulator and DRR (Digitally Reconstructed Radiograph) images generated by the treatment planning system were made in the image workstation to measure the image setup errors. Results Position veriifcation of the irradiation ifelds of 254 tumor patients’ radiotherapy plan was conducted through the radiotherapy simulator. After position verification, the setup errors of head and neck cancer patients’ radiotherapy plans in the axis of x, y and z were (-1.0±1.0) mm, (-1±2) mm and (2±1) mm respectively;while for patients with chest and abdominal cancers, the setup errors were (1±2) mm, (0±2) mm and (3±1) mm;for pelvic cancer patients, the setup errors were (1±1) mm, (1±2) mm and (2±2) mm. After position veriifcation, the setup errors of all the patients’ 3D-CRT plans were controlled within the permissible range. Conclusion Radiotherapy simulator image workstation can verify the irradiation ifelds of 3D-CRT plans to reduce the setup errors.关键词
模拟定位机/位置验证/质量保证/三维适形放疗Key words
radiotherapy simulator/position veriifcation/quality assurance/three dimensional conformal radiotherapy分类
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彭顺有,谢宝君..模拟定位机影像工作站在三维适形放射治疗计划射野位置验证中的应用[J].中国医疗设备,2015,(3):98-100,97,4.
