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宫颈癌是严重威胁妇女健康最常见的恶性肿瘤之一,放射治疗是宫颈癌的主要治疗方法。调强放射治疗作为日益普及的精确放射治疗手段,在宫颈癌放射治疗中具有其独特的优势,主要体现在增加肿瘤靶区治疗剂量,降低正常组织受量,改善患者的生存质量等方面。目前宫颈癌调强放射治疗还存在着各种问题和困难,如分次间摆位误差的控制,内位器官生理运动的评估,临床靶区与计划靶区边界的确定等。
Cervical cancer is one of the most common malignant tumors that seriously threaten women’s health. Radiation therapy is the main treatment for cervical cancer. Intensity modulated radiation therapy, as an increasingly popular means of accurate radiotherapy, has its unique advantages in radiation therapy of cervical cancer. It is mainly reflected in the following aspects: increasing the dose of tumor target, reducing the amount of normal tissue and improving the quality of life of patients. At present, there are still many problems and difficulties in IMRT of cervical cancer, such as the control of setting error among different levels, the assessment of physiological movement of internal organs, and the determination of the boundaries between clinical targets and planned targets.