title: Shielding Effect of Lead Glasses on Radiologists' Eye Lens Exposure in Interventional Procedures.
abstract: To study the shielding effect of radiologists' eye lens with lead glasses of different equivalent thicknesses and sizes in interventional radiology procedures. Using the human voxel phantom with a more accurate model of the eye and MCNPX software, eye lens doses of the radiologists who wearing different kinds of lead glasses were simulated, different beam projections were taken into consideration during the simulation. Measurements were also performed with the physical model to verify simulation results. Simulation results showed that the eye lens doses were reduced by a factor from 3 to 9 when wearing a 20 cm2-sized lead glasses with the equivalent thickness ranging from 0.1 to 1.0 mm Pb. The increase of dose reduction factor (DRF) was not significant whenever increase the lead equivalent of glasses of which larger than 0.35 mm. Furthermore, the DRF was proportional to the size of glass lens from 6 to 30 cm2 with the same lead equivalent. The simulation results were in well agreements with the measured ones. For more reasonable and effective protection of the eye lens of interventional radiologists, a pair of glasses with a lead equivalent of 0.5 mm Pb and large-sized (at least 27 cm2 per glass) lens are recommended.
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.|Fudan University Shanghai Cancer Center, Shanghai 200032, China.
authors.forename: Panpan
authors.initials: P
authors.lastname: Hu
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.|Wuxi No. 4 People's Hospital, Jiangnan University, Wuxi, Jiangsu 214062, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Kong
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Chen
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.
authors.forename: Weihai
authors.initials: W
authors.lastname: Zhuo
authors.affiliation: Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032, China.|Nuclear Engineering and Engineering Physics Program, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
authors.forename: Haikuan
authors.initials: H
authors.lastname: Liu
mesh_terms: D005135:Eye Protective Devices; D006801:Humans; D007908:Lens, Crystalline; D016273:Occupational Exposure; D011829:Radiation Dosage; D011835:Radiation Protection; D000072177:Radiologists; D015642:Radiology, Interventional