Impact of radiation protection means on the dose to the lens of the eye while handling radionuclides in nuclear medicine

被引:13
作者
Bruchmann, Iris [1 ]
Szermerski, Bastian [1 ]
Behrens, Rolf [2 ]
Geworski, Lilli [1 ]
机构
[1] Hannover Med Sch, Dept Radiat Protect & Med Phys, Carl Neuberg Str 1, D-30625 Hannover, Germany
[2] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
来源
ZEITSCHRIFT FUR MEDIZINISCHE PHYSIK | 2016年 / 26卷 / 04期
关键词
Ocular lens; nuclear medicine; cataract; radiation protection means;
D O I
10.1016/j.zemedi.2015.07.002
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
The human eye lens appears to be more radiosensitive than previously assumed. The reduction of the limit for the dose to the lens of the eye to 20 mSv per year has been passed in the current Euratom Directives (2013). Therefore, in this work the impact of laboratory glasses and X-ray protective goggles was investigated and reciprocal attenuation factors (i.e. transmission factors) for different nuclides (Tc-99m, 1-131, Y-90, F-18 and Ga-68) were determined. The radionuclides in typical geometry (syringe, applicator) were positioned at a distance of 50 cm to the eyes of four Alderson-Head-Phantoms. Different dosemeters measuring H-p(3) respective H-p(0.07) were fixed to the eyes of the phantoms, either behind the glasses or without any protection means, respectively. The mean reciprocal attenuation factors were determined to be between unity for F-18 and 1-131 using laboratory glasses (no attenuation effect) and < 0.01 for Y-90 using X-ray protective goggles. All other results were between these extremes. It has been shown, that prospective doses to the lens of the eye can be reduced significantly by using appropriate radiation protection means, especially for those dose-relevant beta radiation emitting nuclides such as Y-90.
引用
收藏
页码:298 / 303
页数:6
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