Advances in the application of electronic portal imaging device in radiotherapy

Electronic portal imaging devices have become important equipment for radiotherapy quality control and quality assurance. They can be used to verify positioning errors and other quality control indicators. They can also be applied in the daily quality control of the accelerator, dosimetry, and real-time dosimetry to ensure the accuracy of radiotherapy implementation. In this paper, the application of electronic portal imaging devices in radiotherapy is briefly reviewed. (authors)