目的　测量估算肿瘤病人在手术切除病灶后 ,为进行体内阻断放疗植入12 5I银 (铂 )粒子的过程中医护人员的受照剂量。方法　植入过程中测量有关部位的照射量率。结果　通过对一例肺癌患者手术后植入 2 5颗12 5I银(铂 )粒子全过程的监测 ,医护人员最大受照剂量为 0 .96× 10 -2 mSv。结论　这对参加粒子植入手术的医护人员不会造成有意义的辐射危害 ,是安全的和可接受的。 Objective To measure the dose received by medical staff during the implantation of 125I silver (platinum) particles in vivo after radiosurgery in patients with tumor after tumor excision. Methods During the implantation process, the dose rate of the relevant site was measured. Results By monitoring the whole process of implanting 25 pieces of 125I silver particles in a lung cancer patient after operation, the maximum dose of medical staff was 0.96 × 10 -2 mSv. Conclusion It is safe and acceptable not to pose a significant radiation hazard to health care workers participating in particle implantation procedures.