三维超声图像引导系统质控评价体系建立  

Establishment of quality control evaluation system for 3D-ultrasound-based image-guided radiotherapy

作　　者：韦晓波[1] 胡强[1] 沐金明[1] 徐国平[1] 陈远[1] 程常海[1] 李齐林[1] 裴红蕾[1] 

机构地区：[1]苏州大学附属第三医院放射肿瘤科,常州213003

出　　处：《中华放射肿瘤学杂志》2016年第3期270-274,共5页Chinese Journal of Radiation Oncology

摘　　要：目的分析三维超声IGRT系统（3DUS-IGRT）日常工作的稳定性和精确度，为软组织肿瘤放疗的临床运用提供依据。方法用专用校准模体对3DUS—IGRT系统进行连续1年的校准与质控，探索超声引导设备日常质控的方法并监测其稳定性和精度。结果模体位置误差在3DUS-IGRT系统的模拟定位工作站（Sim工作站）与图像引导工作站（Guide工作站）均≤1mm。结论三维超声IGRT系统在整套严格且正确的校准与质控支持下性能稳定，能为软组织肿瘤精确放疗提供新的影像引导方法。Objective To analyze the stability and accuracy of the equipment for three-dimensional ultrasound-based image-guided radiation therapy （3DUS-IGRT） in daily practice, and to provide a basis for clinical application of radiotherapy for soft tissue tumors. Methods A specific calibration phantom was used for continuous calibration and quality control of the 3DUS-IGRT equipment in a year. The method for daffy quality control of ultrasound-guided equipment was explored, and its stability and accuracy were monitored. Results The phantom position errors in both Sim and Guide stations of the 3DUS-IGRT equipment were within 1 mm. Conclusions The 3DUS-IGRT equipment has a stable performance with the support of a complete set of stringent and accurate calibration and quality control, which provides a new image-guided method for precise radiotherapy for soft tissue tumors.

关 键 词：三维超声 图像引导放射疗法 质量控制 模体 

分 类 号：R730.55[医药卫生—肿瘤]