-
宫颈癌居我国妇女恶性肿瘤之首, 中、晚期患者主要采用手术加放疗或以放疗为主。但放疗会出现不同程度的不良反应, 因此在选择放疗方案时, 应考虑确保肿瘤获得最大根治剂量的同时, 周邻正常组织的受量降到最低。为此, 我们尝试从放射源、照射方式和计划设计方面进行物理优化, 筛选49例采用全盆腔常规放射治疗与立体定向放射治疗(stereotactic radiotherapy, SRT)方案的宫颈癌患者做回顾性分析, 现总结如下。
关于宫颈癌放疗优化方法的探讨
An exploration of the treatment method for cervical cancer with optimization
-
摘要:
目的 评价宫颈癌在全盆腔常规放疗的后程使用立体定向放射治疗(SRT)的临床效果,探讨这种优化治疗宫颈癌的可行性。 方法 49例临床分期及病理类型相同的中、晚期宫颈癌患者,经全盆腔放疗后采用SRT进行推量治疗。随访3~12个月,观察患者肿瘤控制总有效率、放疗后无宫内肿瘤进展率及放疗后不良反应的情况。 结果 患者放疗后3个月的肿瘤总有效率为81.6%,无宫内肿瘤进展率为100%,直肠反应发生率为18.4%,膀胱反应发生率为12.2%。 结论 优化治疗方式对提高宫颈肿瘤的局部控制率和延长患者的生存期有较好的临床应用价值。 Abstract:Objective The treatment results of cervical cancer in post stage stereotactic radiotherapy (SRT)after the whole pelvic cavity radiotherapy, was evaluated to explore the feasibility of this optimal method. Methods Forty-nine moderate or advanced cases of cervical cancer with the same clinical stages and pathologic types in our hospital were treated with the whole pelvic cavity radiotherapy and post stage SRT push doses radiotherapy.They were followed up for 3 to 12 months, the total effective rates, the tumor progressions after radiotherapy and no side effects after radiotherapy in patients were observed. Results After radiotherapy for 3 months, the patients'tumor total effective rates were 81.6%, tumor progression rates without intrauterine were 100%, rectum reaction rates were 18.4%and bladder reaction rates were 12.2%. Conclusions This optimization was feasible to the patients of cervical cancer with better tumors'local control and surviving time's prolongation. -
Key words:
- Uterine cervical neoplasms /
- Stereotactic radiotherapy
-
[1] 连立娟, 林巧稚. 妇科肿瘤. 3版, 北京: 人民生出版社, 2000: 315.
[2] 蒋国梁. 现代肿瘤放射治疗学. 上海: 上海科学技术出版社, 2003: 712-716.
[3] Papp Z, Csapó Z, Mayer A, et al. Wertheim-operation: 5-year Survival of 501consecutive patients with cervical cancer. Orv Hetil, 2006, 147(12): 537. [4] 徐子海, 周燕华, 廖福锡. 超级伽玛刀在全身恶性肿瘤的临床应用. 第二届广州军区放射治疗研讨会论文汇编, 广州: 中国人民解放军广州军区医学会放射治疗学专业委员会, 2004: 81-84.
[5] Robert JA, Brunotto VL, Keys HM, et al. AphaseⅢrandomized study of surgery versus surgery plus adjunctive radiation therapy in intermediate risk endometrial Aden carcinoma(GOG99). Gynecol Oncol, 1998, 69: 135. [6] Panin VY, Kehren F, Michel C, et al. Fully 3-D PET reconstruction with system matrix derived from point source measurements. IEEE Trans Med Imaging, 2006, 25(7): 907-921 doi: 10.1109/TMI.2006.876171 [7] Politte DG. Image improvements in positron-emission tomography due to measuring differential time-of-flight and using maximum-likelihood estimation. IEEE Trans Nucl Sci, 1990, 37: 737-742. doi: 10.1109/23.106707 [8] Kadrmas DJ, Casey ME, Conti M, et al. Impact of time-of-flight on PET tumor detection: an LROC study. J Nucl Med, 2009, 50(8): 1315-1323. doi: 10.2967/jnumed.109.063016 [9] Hatt M, Cheze le Rest C, Turzo A, et al. A fuzzy locally adaptive Bayesian segmentation approach for volume determination in PET. IEEE Trans Med Imaging, 2009, 28(6): 881-893. doi: 10.1109/TMI.2008.2012036 [10] Montgomery DW, Amira A, Zaidi H. Fully automated segmentation of oncological PET volumes using a combined multiscale and statistical model. Med Phys, 2007, 34(2): 722-736. doi: 10.1118/1.2432404
计量
- 文章访问数: 1780
- HTML全文浏览量: 531
- PDF下载量: 2