钨-聚合物复合屏蔽对胸部 CT 扫描胎儿剂量降低的效率。
Efficiency of tungsten-polymer composite shields on fetal dose reduction in chest CT scans.
机构信息
Department of Medical Physics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Physics Department, Faculty of Sciences, Sahand University of Technology, Tabriz, Iran.
出版信息
Med Eng Phys. 2023 Aug;118:104008. doi: 10.1016/j.medengphy.2023.104008. Epub 2023 Jun 16.
Given their desirable shielding properties, 5 polymer composite shields reinforced with tungsten were selected and their effects as gamma shields on fetal dose reduction were investigated. According to the results, the selected shields reduce the fetus brain, the fetus lungs, the fetus kidneys, and the total fetus dose almost 34.17%-41.19%, 20.47%-25.08%, 9.27%-12.13%, and 15.39%-18.69%, respectively, at tube voltage of 80 kVp. At the higher tube potentials, the values of dose reduction were smaller. Moreover, it was observed that polymers named PHEMA-WO and RS-U-30 had an excellent shielding ability among the other studied composites.
鉴于它们理想的屏蔽性能，选择了 5 种用钨增强的聚合物复合材料屏蔽，并研究了它们作为伽马屏蔽对降低胎儿剂量的影响。结果表明，在所选择的屏蔽中，在管电压为 80 kVp 时，胎儿大脑、胎儿肺部、胎儿肾脏和胎儿总剂量分别降低了约 34.17%-41.19%、20.47%-25.08%、9.27%-12.13%和 15.39%-18.69%。在更高的管电压下，剂量降低的值较小。此外，在研究的复合材料中，发现名为 PHEMA-WO 和 RS-U-30 的聚合物具有优异的屏蔽能力。
Zotero 插件