相同A点不同等剂量曲线后装治疗宫颈癌的疗效探讨

目的探讨宫颈癌治疗中A点相同,不同等剂量曲线应用的相关问题.方法60Co后装机用梭形、椭圆形、柱形、扁梨形等剂量曲线相结合的治疗计划系统（TPS）优化方案治疗宫颈癌.结果218例宫颈癌治疗结果CR 165例,占75.69%;PR 47例,占21.56%;NC 6例,占2.8%.结论宫颈癌腔内治疗A点剂量3600～4000 cGy时,选择以梭形等剂量曲线为主,辅以扁梨形等剂量曲线,补充柱形、椭圆形等剂量曲线TPS优化的治疗方案,符合宫颈癌治疗技术的规范化原则.

Study on effect of therapy with the same A point but different isodose curve in cervical carcinoma

Objective To investigate correlative question about the same A point but different isodose curve in therapy of cervical carcinoma. Methods To treat cervical carcinoma with TPS superior scheme combining with isodose curve of rhombus shape, oval shape, cylinder shape and flat pear shape in 60^Co afterloading machine. Results In 218 cases of cervical carcinomas, 165 cases had CR and occupied 75. 69%, 47 cases PR and occupied 21. 56%, and six cases NC and occupied 2.8% respectively. Conclusion When A point is 3600 to 4000 cGy in intracavitary brachytherapy of cervical carcinoma, selecting TPS superior scheme with rhombus shape isodose curve primary, flat pear shape isodose carve assistant and cylinder shape, oval shape isodose curve supplementary conforms to standard rule of technique in treating cervical carcinoma.