摘要
目的 探讨新型一体化携^(125)I粒子双链胆道引流管(粒子引流管)治疗恶性梗阻性黄疸患者术后即刻辐射剂量率的监测与防护措施。方法 2017年9月至2020年9月,35例恶性梗阻性黄疸患者首次接受粒子引流管治疗,术后即刻监测手术侧、对侧在有无防护措施下0、15、30、45、60、75和90 cm处的γ射线辐射量率,并与天然本底测量值比较,进而提出针对性护理防护措施。结果 无铅衣防护状态下,术后手术侧γ射线辐射量率在0、15、30、45、60 cm处分别为24.5、13.0、7.2、2.7、1.7μSv/h,对侧为12.8、4.3、1.7、1.8、1.7μSv/h,在术侧60 cm处及对侧30 cm内,剂量率与天然本底有统计学差异(P<0.05)。而铅衣防护状态下,所有监测值均与本底值差异无统计学意义(P>0.05)。结论 梗阻性黄疸患者置入粒子引流管后,无铅衣防护状态下,在手术侧60 cm以外或手术对侧30 cm以外的距离操作为宜,可减少对医护人员的辐射。
Objective To discuss the monitoring of postoperative immediate radiation dose and the radiation protection measures in patients with malignant obstructive jaundice(MOJ) who are receiving brachytherapy by using a new-type integrated biliary drainage tube carrying ^(125)I particle dual-chain(particle drainage tube). Methods From September 2017 to September 2020, a total of 35 patients with MOJ were treated with particle drainage tube. Immediately after the surgery, the γ-ray radiation rates at 0 cm, 15 cm,30 cm, 45 cm, 60 cm, 75 cm and 90 cm sites of both the surgical side and the opposite side under using protection device condition and not using protection device condition were separately measured, the results were compared with the natural background values. Results Under the condition of not using lead-clothing protection, the postoperative γ-ray radiation rates at 0 cm, 15 cm, 30 cm, 45 cm and 60 cm sites on the surgical side were 24.5 μSv/h, 13.0 μSv/h, 7.2 μSv/h, 2.7 μSv/h and 1.7 μSv/h respectively, which on the opposite side were 12.8 μSv/h, 4.3 μSv/h, 1.7 μSv/h, 1.8 μSv/h and 1.7 μSv/h respectively. The γ-ray radiation rates at 60 cm site on the surgical side and at 30 cm site on the opposite side were statistically different from the natural background values(P<0.05). Under the condition of using lead-clothing protection,the differences in γ-ray radiation rates between all the obtained monitoring values and the natural background data were not statistically significant(P>0.05). Conclusion In treating MOJ patients with implantation of particle drainage tube under the condition of not using lead-clothing protection, the operators had better to perform the manipulation at a distance of 60 cm away from the surgical side or at a distance of 30 cm away from the opposite side, in this way the radiation dose to the medical staff can be reduced.(J Intervent Radiol, 2022, 31: 401-403)
作者
贾自玲
徐苗
焦德超
田川
JIA Ziling;XU Miao;JIAO Dechao;TIAN Chuan(Department of Intervention,First Affiliated Hospital of Zhengzhou University,Zhengzhou,Henan Province 450000,China)
出处
《介入放射学杂志》
CSCD
北大核心
2022年第4期401-403,共3页
Journal of Interventional Radiology
基金
河南省医学科技攻关计划省部共建青年项目(SB201902014)。
