With the introduction of the concept of precision radiotherapy and the continuous innovation and rapid development of radiotherapy technology,the demand for precise positioning of radiotherapy in clinical practice is constantly increasing.The laser-assisted positioning system plays an indispensable role in the positioning,placement,and pre-treatment repositioning process of radiotherapy,and its accuracy directly affects the treatment effect of patients.Therefore,to ensure the accuracy and effectiveness of the treatment process,the quality control(QC)and calibration methods for the laser-assisted positioning system must be mastered by radiation therapy physicists.In this study,a method for rapid QC and calibration of Medical Linear Accelerator Laser-Assisted Positioning System using Penta-Guide phantom was proposed,aiming to provide practical reference for radiation therapy physicists.With a rapid QC and calibration process of approximately 2 minutes,the rapid QC and calibration of the daily bed levelness,field consistency,and laser lamp accuracy of the linear accelerator,as well as real-time calibration of the laser lamp offset,could be completed.
关键词
医科达/医用直线加速器/激光灯辅助定位系统/质量控制/Penta-Guide模体/实时校准
Key words
Elekta medical linear accelerator/Laser-assisted positioning system/Quality control/Penta-guide phantom/Real-time calibration
维普
万方数据