王俊杰,黄毅,冉维强,李金娜,姜伟娟,刘江平,姜玉良,田素青,江萍.超声引导125I粒子治疗前列腺癌引起的直肠并发症[J].中华放射医学与防护杂志,2007,27(2):172-174
超声引导125I粒子治疗前列腺癌引起的直肠并发症
Rectal complications of 125I interstitial brachytherapy for prostate cancer under transrectal ultrasonography guidance\
投稿时间:2006-03-17  
DOI:
中文关键词:  125I粒子  前列腺癌  近距离治疗  经直肠超声  直肠并发症
英文关键词:125I seed  Prostate carcinmoma  Brachytherapy  Transrectal ultrasonography  Rectum morbidity
基金项目:
作者单位
王俊杰 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
黄毅 100083 北京大学第三医院肿瘤治疗中心泌尿外科 
冉维强 100083 北京大学第三医院肿瘤治疗中心超声诊断科 
李金娜 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
姜伟娟 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
刘江平 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
姜玉良 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
田素青 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
江萍 100083 北京大学第三医院肿瘤治疗中心放射治疗科 
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中文摘要:
      目的 探讨经会阴超声引导放射性125I粒子近距离治疗前列腺癌的直肠并发症。方法 80例前列腺癌患者实施经会阴超声引导放射性125I粒子植入术,其中68例单纯粒子植入治疗,12例行粒子治疗联合外放疗。单纯125I粒子治疗肿瘤匹配周边剂量(matched peripheral dose, MPD)为140~160 Gy,联合组125I粒子植入MPD为90~110 Gy。联合组外照射剂量为40~50 Gy/4~5周,20 Gy/次,5次/周,4野照射,粒子植入后4周进行。根据术中计划,利用Mick枪后退式植入粒子,活度为0.35~0.50 mCi,中位植入粒子65颗(平均19~100颗)。术后1个月行盆腔CT扫描,进行质量验证。结果 68例单纯放射性125I粒子植入治疗前列腺癌后直肠I级、Ⅱ级、Ⅲ级和Ⅳ级副反应发生率分别为7.3%、4.4%、2.9%和1.5%,而12例125I粒子植入治疗和联合外放疗直肠副反应I级和Ⅱ级发生率分别为10%和10%,没有Ⅲ级以上直肠副反应。直肠反应出现中位时间12月(1~16个月)。结论 超声引导经会阴放射性125I粒子植入治疗前列腺癌直肠并发症发生率可以接受,需要进一步明确直肠剂量与发生副反应的关系。
英文摘要:
      Objective To investigate the rectal complications of ultrasound-guided transperineal interstitial permanent prostate brachytherapy(TIPPB)in prostate cancer. Methods 80 patients treated with transperineal 125I seed brachytherapy guided by utrasound,including 68 patients treated with seed implantation and 12 patients treated with seed plus external beam radiotherapy(EBRT). The matched peripheral doses (MPD)of monotherapy and conbined with EBRT group were 140-160 Gy and 90-110 Gy, respectively.The EBRT doses were 40-50 Gy/4-5 weeks,20 Gy/f,5 f/week,the interval between seed implantation and EBRT was 4 weeks. The activity of each seed ranged from 0.35 to 0.50 mCi,the number of seeds was from 19 to 100.The pelvic CT scan was given one month post-implantaion and undertook quality evaluation. Results 68 patients with monotherapy of 125I seed implantation and 12 patients with 125I seed implantation combined with EBRT. The incidence of side effect of Grades Ⅰ, Ⅱ, Ⅲ and Ⅳ rectum morbidity after 125I seed implantation were 7.3%,4.4%,2.9% and 1.5%, respectively. Grades I and Ⅱ rectum morbidity of patients treated with seed implantation plus EBRT was 10% and 10%, respectively, with no side effects in grades Ⅲ and Ⅳ.The median time for rectum side effect was 12 months(1-16). Conclusions Transperineal interstitial permanent brachytherapy is a tolerable and acceptable treatment option as used alone and combined with EBRT.
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