悬吊防护屏对介入医师最佳防护方案的体模研究

发布时间：2018-04-19 12:39

本文选题：介入放射 + 辐射剂量　；参考：《介入放射学杂志》2015年07期

【摘要】：目的探讨悬吊防护屏规格及摆放位置对介入手术中第一及第二术者辐射防护效果,为选择悬吊防护屏最佳辐射防护方案提供科学依据。方法在第一及第二术者站位,从地面20 cm至180 cm处,每隔20 cm放置一个个人计量仪。投照体位选择正位与左侧位。悬吊防护屏为铅玻璃(简称玻璃式)与铅玻璃下接铅橡胶皮(简称混搭式)两种。防护屏摆位分别为靠近术者、远离术者、在术者左侧及贴近球管4种。测量2种投照体位下,不同防护屏规格与摆位在第一及第二术者位9个高度的实时辐射剂量率,计算剂量屏蔽率。结果两种防护屏防护效果接近,以玻璃式略优。对于第一术者,正位投照时以近术者摆位的防护效果最佳,侧位投照则以术者左侧摆位的防护效果最好;对于第二术者,正及侧位投照均以近术者摆位防护效果最优。在最佳摆位情况下:正位投照时第一术者在120 cm高度、侧位投照时第一及第二术者各高度仍可检测到较高的辐射剂量率;第一与第二术者总体接受的辐射剂量接近;第一术者的剂量屏蔽率除正位120 cm高度稍低(玻璃式为60.11%,混搭式为39.89%)外,其余各点均高达93%以上,第二术者剂量屏蔽率为57%~97%;侧位屏蔽率整体略高于正位屏蔽率。结论两种防护屏防护效果接近,均能取得较好的防护效果,但正位投照时第一术者的120 cm高度及侧位投照时2位术者的各高度辐射剂量率仍相对较高,需加强对120 cm高度的辐射防护,并尽量少用侧位投照。
[Abstract]:Objective to investigate the radiation protection effect of the first and second operation persons in the first and second operation of the suspension protection screen and to provide scientific basis for selecting the best radiation protection plan of the suspension protection screen.Methods A personal metering instrument was placed every 20 cm from 20 cm to 180 cm on the ground in the first and second site.The right position and the left position were selected.Suspension protection screen for lead glass (short for short glass) and lead under the rubber leather (referred to as mixed) two types.The position of protective screen was close to the operator, away from the operator, on the left side of the operator and close to the ball tube.The real time radiation dose rates with different protective screen specifications and positions in the first and second operation positions were measured and the dose shielding rates were calculated.Results the protective effect of the two protective screens was similar, and the glass type was slightly superior.For the first operation, the protective effect was best with the proximal position, the best with the left side of the lateral position, and the best with the proximal position for the second operation.Under the optimal setting condition, the first operator was at 120cm height, while the first and second operators could still detect higher radiation dose rate at the first and second height, the total radiation dose of the first and the second operation was close to that of the second operation, and the total radiation dose of the first and the second operation was close to that of the second operation, and that of the first and the second operation was close to that of the second.The dose shielding rate of the first operation was as high as 93% except for the positive 120cm height (60.11 in glass type and 39.89 in the mixing mode), and the shielding rate in the second operation was 57 / 97, and the side shielding rate was slightly higher than that in the positive position.Conclusion the protective effects of the two protective screens are similar and can achieve better protective effects. However, the radiation dose rates of the first operation at the first position and the radiation dose rates of the two at the lateral position are still relatively high.The radiation protection at 120 cm height should be strengthened and the lateral projection should be minimized.
【作者单位】：汕头大学医学院;广东省人民医院广东省医学科学院;广东省医学科学院介入导管室;西门子(中国)有限公司;
【基金】：NSFC-广东联合基金重点支持项目(U1401255) 国家“十二五”科技支撑项目(2011BAI11B22) 广东省科技支撑计划项目(2009B030801257)
【分类号】：R144

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