广州医药 ›› 2015, Vol. 46 ›› Issue (2): 32-34.DOI: 10.3969/j.issn.1000-8535.2015.02.011

• 论著 • 上一篇    下一篇

孤立性肺肿瘤应用立体定向体部放射治疗的疗效分析

伍勇, 曹小飞, 翁成荫, 甘庆权, 陈小君, 刘国龙   

  1. 广州医科大学附属广州市第一人民医院肿瘤科(广州 510180)
  • 收稿日期:2015-01-01 发布日期:2021-11-30
  • 通讯作者: 刘国龙,Email:liugl@smu.edu.cn

Efficacy analysis of stereotactic body radiation therapy on solitary pulmonary tumor

Wu Yong, Cao Xiaofei, Weng Chengyin, et al   

  1. Department of Oncology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou 510180, China
  • Received:2015-01-01 Published:2021-11-30

摘要: 目的 分析立体定向体部放射治疗(SBRJ)应用于孤立性肺肿瘤的疗效,探讨其临床价值。方法 采用拓能(TOPSLANE)全身X线立体定向放射治疗系统治疗15例孤立性肺肿瘤患者,其中I期非小细胞肺癌患者8例,单个肺转移瘤患者7例。单次剂量为5~8Gy/次,每天1次,每周3次,共8~10次,总剂量50~64Gy,生物有效剂量(BED)75~115Gy。分析治疗的近期疗效、急性放射损伤和局部控制率。结果 3例患者完全缓解(20.0%),10例患者部分缓解(66.7%),2例患者病灶稳定(13.3%),没有疾病进展的患者。15例患者总有效率为86.7%(13/15)。BED<90Gy的患者有效率为33.3%,而BED>90Gy的患者有效率为100%,差异有统计学意义(P<0.05)。3例患者出现2级急性放射损伤,未见3级以上毒副反应。1年和2年局控率分别为92.3%和81.2%。结论 SBRT治疗孤立性肺肿瘤可获得较好的近期疗效和局部控制率,急性放射损伤较轻。

关键词: 孤立性肺肿瘤, 立体定向体部放射治疗, 疗效

Abstract: Objective To analyze the efficacy of stereotactic body radiation therapy(SBRT) onsolitary pulmonary tumor and explore its clinical value. Methods TOPSLANE X-ray stereotactic body radiation therapy system was used for treatment of fifteen patients with solitary pulmonary tumor, including eight patients with stage I non-small cell lung cancer and seven patients with single lung metastasis. Fraction dose of 5 to 8Gy was prescribed once a day, three times a week, totally 8 to 10 times to a total dose of 50 to 64 Gy and biological effective dose(BED) of 75 to 115Gy. Short-term efficacy, acute radiation injury and local control rate were analyzed. Results After treatment, there were three patients with complete response (CR) (20.0%), ten patients with partial response (PR) (66.7%), tow patients with stable disease (SD) (13.3%), and no patients with progressive disease (PD). The total response rate was 86.7% (13/15). The response rate was 33.3% in patients with BED <90 Gy, while it was 100% in patients with BED> 90 Gy, and the difference was statistically significant (P<0.05). Grade 2 acute radiation injuries were observed in three patients, and no toxicity greater than grade 3 was observed. The 1-year and 2-year local control rate was 92.3% and 81.2%, respectively. Conclusion SBRT on solitary pulmonary tumor has good short-term efficacy and local control rate with mild acute radiation injury.

Key words: Solitary pulmonary tumor, Stereotactic body radiation therapy, Efficacy