| 王强,付强,林琳.三种双剂量计法估算介入术者有效剂量比较[J].中华放射医学与防护杂志,2016,36(12):935-939 |
| 三种双剂量计法估算介入术者有效剂量比较 |
| Estimation of interventional radiology worker's effective dose by using three kinds of double-dosimetry algorithms |
| 投稿时间：2016-05-31 |
| DOI：10.3760/cma.j.issn.0254-5098.2016.12.012 |
| 中文关键词: 介入 仿真人 有效剂量 双剂量计 |
| 英文关键词:Interventional radiology Anthropomorphic phantom Effective dose Double-dosimetry |
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| 中文摘要: |
| 目的 比较3种双剂量计算法估算介入术者有效剂量的优劣。方法 在仿真人体模内布放热释光剂量片并将体模置于介入术者位置，在体模外穿戴铅防护衣、铅围脖和铅帽，并在铅衣内左前胸和铅围脖外左侧放置个人剂量计，在手术台上放置散射模体，分别为CIRS放疗调强体模和CT剂量检测模体，模拟介入手术曝光条件曝光一定时间，通过器官组织吸收剂量估算有效剂量；以3种双剂量计法计算有效剂量并与体模法结果进行比较。结果 得到两组各4个有效剂量结果，即使用CIRS放疗调强体模时，体模法、NCRP法、Niklason法和Boetticher法分别为0.138、0.097、0.161和0.173 mSv；使用CT剂量检测模体时分别为0.018、0.013、0.019和0.026 mSv。其中，Niklason法与体模法最为接近。结论 对于估算介入术者的有效剂量，Niklason法更为准确和实用。 |
| 英文摘要: |
| 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 X-ray, 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. |
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