^（192）Ir后装放疗治疗胆管癌

￣(192)Ir intraluminal brachytherapy for bile duct carcinoma

目的探讨胆管癌治疗的新方法。方法５例无法切除的胆管癌术中置管后行１９２Ｉｒ后装放疗．每次放疗剂量６～８Ｇｙ，５～７ｄ一次，总剂量３６～４２Ｇｙ．结果５例中２例显示肿瘤完全消失，胆总管梗阻解除，３例示肿瘤缩小、黄疸消退，生存时间分别为６、１０及１２ｍｏ以上，平均生存时间１１８ｍｏ．且无严重并发症．结论本方法治疗胆管癌疗效确切，且方法简单，易于推广。

Objective To research a new method to treat bile duct carcinoma. Method Five patients with unresectable carcinomas of bile duct received 192lr intralurninal brachytherapy, A dose of 6 to SGy was delivered to 1 cm radius one time every 5～7 days and the total dose from 36 to 42Gy. Results The disappearance of tumour in 2 of5 patients, reducing of tumour and obstraction relieved in 3 of 5 patients received the treatment were obrerved. The mean survival time was 1 1. 8 months and there was no serious complications. Conclusion High dose 1921r intratumind brachytherapy appears to be the most effective method for bile duct carcInorna.