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肺癌是最常见且病死率最高的恶性肿瘤之一, 每年新发肺癌人数超过100万, 其中70%~80%是非小细胞肺癌(non-small cell lung cancer, NSCLC)。在NSCLC患者中, 只有1/3左右的患者可行根治性手术, 但即使这样, 仍有大量患者术后出现局部复发, 且只有少数复发患者可接受再次手术切除, 绝大多数以放化疗为主。但化疗难以消退肿瘤, 传统外放疗则因严重的不良反应使剂量提升困难而限制了疗效。因此, 如何控制局部复发病灶一直是一个难题, 需迫切解决。本研究回顾性分析在我院应用治疗计划系统(treatment planning system, TPS), 在CT引导下经皮穿刺植入125I粒子治疗切除术后局部复发的32例NSCLC患者的疗效, 现报道如下。
CT引导下植入125I粒子治疗非小细胞肺癌切除术后局部复发的疗效
CT-guided percutaneous interstitial implantation of 125I for recurrent patients of postoperative non-small cell lung carcinoma
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摘要:
目的 探讨CT引导下经皮穿刺植入125I粒子近距离内照射治疗非小细胞肺癌(NSCLC)切除术后局部复发的近期效果。 方法 术前活检证实为NSCLC、术后局部复发的患者32例,处方剂量为90 Gy,通过CT引导经皮穿刺植入125I粒子。在治疗前和治疗后6个月,根据CT检查比较肿瘤体积,按国际标准判定疗效。中位随访24个月(6~72个月)。 结果 植入粒子后,瘤体接受的平均照射剂量为153.7 Gy,D90为93.5 Gy。6个月后,完全缓解率+部分缓解率为90.6%,未发生与治疗相关的严重并发症。1年和2年的生存率分别为87%和73%,中位生存期为35个月。 结论 在CT引导下,125I粒子植入治疗NSCLC术后局部复发安全、微创且有效。 -
关键词:
- 癌, 非小细胞肺 /
- 碘放射性同位素 /
- 近距离放射疗法 /
- 体层摄影术, X线计算机 /
- 肿瘤复发, 局部
Abstract:Objective To evaluate the efficacy of percutaneous interstitial implantation with 125I seeds for recurrent patients of postoperative non-small cell lung carcinoma(NSCLC)guided by CT. Methods Thirty-two NLCLC patients were verified by biopsy pathology.Prescribed dose was 90 Gy.The percutaneous interstitial implantation of 125I seeds treatment was guided by CT.The carcinoma were scanned by CT and compared before and 6 months after treatment.Then judge the curative effect accerding to the curative standard put forward by World Health Organization.All the patients were folluwed-up for 6 to 72 months, mean 24 months. Results The mean radioactive dose of therapy group was 153.7 Gy, D90was 93.5 Gy.Among the 32 follow-up cases, the complete and partial remission rate was 90.6%, and no major complications.One and two year survival rate were 87%and 73%, mean survival was 35 months. Conclusion Percutaneous interstitial implantation with 125I seeds for recurrent patients of postoperative NSCLC guided by CT is a valid, minimally invasive and efficient method. -
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