Estimation of interventional radiology worker's effective dose by using three kinds of double-dosimetry algorithms
10.3760/cma.j.issn.0254-5098.2016.12.012
- VernacularTitle:三种双剂量计法估算介入术者有效剂量比较
- Author:
Qiang WANG
;
Qiang FU
;
Lin LIN
- Keywords:
Interventional radiology;
Anthropomorphic phantom;
Effective dose;
Double-dosimetry
- From:
Chinese Journal of Radiological Medicine and Protection
2016;36(12):935-939
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare three kinds of double-dosimetry algorithms used in estimating interventional radiology worker's effective dose.Methods TLDs were put in the Alderson Radiation Therapy Phantom (ARTP) dressed with lead apron,lead cap and lead collar.TLDs were put on the front left chest inside the lead apron and on the left outside lead collar,respectively.Radiation scattering models,intensity-modulated radiotherapy body model at one time and CT dose detection model at another time,were put on the operating table.The ARTP was set at the major operator's position exposed to the Xray,mimicking the real interventional radiology operation.Effective doses were estimated on the basis of organ absorbed doses.Effective doses were also obtained by the use of three kinds of double-dosimetry algorithms.The later three effective doses were compared with the first one.Results Two groups of effective doses were obtained,with each including four data.For intensity-modulated radiotherapy body model,effective doses were 0.138 mSv for phantom method,0.097 mSv for NCRP algorithm,0.161 mSv for Niklason's algorithm and 0.173 mSv for Boetticher's algorithm,respectively.For CT dose detection model,effective doses were 0.018,0.013,0.019 and 0.026 mSv,respectively.The result obtained by using the Niklason's algorithm was the closest to that by using phantom method.Conclusions Niklason's algorithm is more accurate and more practical in eatimating interventional radiology worker's effective dose.
