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18 94年伦琴发现了Ｘ射线 ,1897年居里夫人发现了放射性同位素镭。此后一百年来 ,随着物理与生物科学理论的完善 ,特别是近 30年来科学技术的快速发展 ,放射治疗已成为肿瘤的三大主要治疗手段之一。作为一种局部治疗手段 ,放射治疗的目的在于通过提高靶区剂量和 (或 )减少靶区
X-ray was discovered by Roentgen in 1994, and in 1897 Madame Curie discovered the radioisotope radium. In the following one hundred years, with the improvement of the theories of physics and biological sciences, especially the rapid development of science and technology in the past 30 years, radiation therapy has become one of the three major treatments for cancer. As a local treatment, the purpose of radiation therapy is to increase the target dose and / or decrease the target volume