Simulated experimental measurement of exposure dose to patients from endoscopic retrograde cholangiopancreatography operation
10.3760/cma.j.issn.0254-5098.2020.01.010
- VernacularTitle: 经内镜逆行胰胆管造影术诊疗中患者受照剂量的模拟实验测量
- Author:
Jianguo ZHU
1
;
Tao WANG
2
;
Shuhui YANG
1
;
Lin ZHANG
1
;
Fei NIU
1
;
Nan MIN
1
Author Information
1. Institute of Radiation Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
2. No.5 People′s Hospital of Jinan City, Jinan 250022, China
- Publication Type:Journal Article
- Keywords:
Endoscopicretrograde(ERCP);
Phantom;
Dose;
Radiation protection
- From:
Chinese Journal of Radiological Medicine and Protection
2020;40(1):55-58
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To estimate the doses to patients from ERCP operation through experimental measurements.
Methods:A retrospective analysis was made of 56 ERCP operations in three hospitals, and meanwhile, the tube voltage and current, fluoroscopy time, accumulated doses, DAPs (dose-area product) and photographic frames were also recorded for statistical analysis. Three cases of RECP operation that had led to high, medium and low DAP values were selected, respectively, as high, medium and low dose groups based on anthropomorphic phatom (AP). ERCP operation was simulated on AP on the basis of putting TLDs in it. The absorbed doses of organs were measured while effective doses while calculated.
Results:The effective doses for high, medium and low groups were 2.69, 11.52 and 39.27 mSv, respectively. The effective dose was 14 times higher in high dose group than that in low group. The highest organ doses for three groups were all concentrated in the irradiation fields.
Conclusions:Organ doses from ERCP phantom experiments vary largely in different groups. Compared with phantom experiments of other interventional types, ERCP can be regarded as one of interventional means leading to high-dose. It is advisable to reasonably and safely use intervention diagnosis and therapy and in order optimize radiation doses to patients.
