论文部分内容阅读
为了对不同分期的鼻咽癌正确选择合适的放射野。鼻咽癌２２例放疗前摄ＣＴ片并输入治疗计划系统进行剂量分布分析。结果３例Ｔ１ＮｏＭｏ患者采用耳前野，适用于病灶局限的早期鼻咽癌，可辅以鼻前野；１９例Ｔ２～４Ｎ１～３Ｍｏ患者采用面颈联合野，适用于中晚期的鼻咽癌。前组颅神经受累，中颅窝受侵加用颅底野；后组颅神经受累，茎突后间隙或后颅病变加用耳后野。
In order to correctly select the appropriate radiation field for different stages of nasopharyngeal carcinoma. 22 cases of nasopharyngeal carcinoma radiotherapy antegrade CT slice and enter the treatment planning system for dose distribution analysis. Results Three cases of T1NoMo were treated with anterior pituitary field, which was suitable for the early nasopharyngeal carcinoma with localized lesions and could be supplemented with the anterior pituitary field. Nineteen patients with T2 ~ 4N1 ~ 3Mo were treated with face-and-neck combined field, which was suitable for advanced nasopharyngeal carcinoma. Cranial nerve involvement in the anterior group, the invasion of the middle cranial fossa with skull base field; the latter group of cranial nerves involved, posterior styloid process or posterior cranial disease plus ear field.