Abstract： 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 daily 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.
Wei Xiaobo,Hu Qiang,Mu Jinming et al. Establishment of quality control evaluation system for 3D-ultrasound-based image-guided radiotherapy[J]. Chinese Journal of Radiation Oncology, 2016, 25(3): 270-274.
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