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作 者:杨景魁[1] 霍小东[1] 闫卫亮[1] 郑广钧[1] 冯震[1] 吕金爽[1]
出 处:《中华老年医学杂志》2014年第7期757-759,共3页Chinese Journal of Geriatrics
摘 要:目的 探讨应用肿瘤组织间放射治疗计划系统(TPS)在CT引导下经皮穿刺种植放射性125I粒子治疗非手术的早期非小细胞肺癌(NSCLC)的效果. 方法 选择2002年12月至2006年12月病理证实为早期NSCLC(Ⅰ、Ⅱ期)的患者18例,处方剂量(PD) 110 Gy,中位活度0.7 mCi,CT引导下行经皮穿刺种植放射性125I粒子治疗,治疗后1个月、2个月、6个月、1年复查胸部CT,并与治疗前的肿瘤大小进行比较和疗效判定. 结果 靶区瘤体周边最小剂量(mPD) (107.7±5.3)Gy,D90(113±3.7)Gy,D90>mPD.术后6个月胸部CT示完全缓解38.9%(7例),部分缓解50.0%(9例),稳定11.1%(2例),进展0%(0例),有效率为92.9%(16例),1年局部控制率为88.9%(16例).随访截至2011年12月,1年累计生存率94.4%(17例),2年72.2%(13例),3年66.7%(12例),5年55.6%(10例),中位生存期58个月. 结论 CT引导下经皮穿刺肿瘤组织种植放射性125I粒子治疗对不宜外科手术的早期非小细胞肺癌(NSCLC)患者是一种有效的治疗方法.Objective To evaluate the effect of CT guided permanent 125I seeds implant brachytherapy on early non-small cell lung cancer (NSCLC) that is not suitable for operation.Methods 18 patients with early stage of NSCLC (stage Ⅰ and Ⅱ) were treated with CT guided permanent seeds 125I implantation from December 2002 to December 2006.The prescribed dose (PD)was 110 Gy,the median activity of 125I seed source was 0.7 mCi.The chest CT detection was performed at 1,2,6 months and 1 year after treatment.The tumor size and the clinical effect were compared before and after treatment.Results The minimum PD in target tumor was (107.7±5.3)Gy,D90 was (113±3.7) Gy,and D9o was more than mPD.The chest CT showed that complete relief (CR) was achieved in 7 patients (38.9%),partial relief (PR) was in 9 patients (50%),stable disease (SD) was in 2 patients (11.1%),no progress disease (PD) was found.The effective rate (CR rate + PR rate) was 92.9% (16 cases),and local control rate was 88.9% (16 cases) within one year.During the follow-up to December 2011,the 1,3 and 5 years cumulatively survival rate was 94.4 % (17 cases),72.2% (13 cases),66.7% (12 cases),56.8% (10 cases) respectively.Median survival time was 58 months.Conclusions CT-guided permanent 125I seeds implant brachtherapy is effective in the treatment of early non-small cell lung cancer that is not suitable for operation.
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