Evaluation of the Protection Effectiveness of Application of Vertical
Protective Shield in DR Photography in Standing Position
CHEN Ji-wei1a,2, TU Yu1b,TANG Zai-xiang1a, WU Yin1c,WU Xin-han2, HUANG Sheng-yan
1. a. College of Public Health; b. College
of Radiation Medicine and Protection;
c. College of Nursing, Medical College
of Soochow University, Suzhou Jiangsu
215123, China; 2. Kunshan Hospital of
Traditional Chinese Medicine, Kunshan
Jiangsu 215300, China
Abstract：Objective To study the protection effectiveness of application of vertical protective shield in
DR imaging in standing position. Methods Two experiments were carried out to validate the sampling
phantom and the dose of the tested sample. In the phantom validation experiment, the phantom was
divided into Control Group and Experiment Group according to the different protection condition. The
dose value of the X-ray radiation on phantom’s gonad was measured by using the Barracuda dose meter.
Control Group accepted 30 times of X-ray radiation under 3 exposure conditions (78 kV, 16 mAs; 86
kV, 25 mAs; 90 kV, 31.5 mAs), without any protective measures; while, Experiment Group underwent
90 times of X-ray radiation under the same exposure conditions as Control Group, with the vertical
protective shield located in 1 m, 0.5 m and 0 m respectively away from the phantom. 58 subjects who
underwent anterior and posterior chest radiography were involved in the dose verification test and evenly
divided into Group A and Group B. Group A and Group B were protected by wearing a lead protective skirt
and vertical protective shield respectively; and the radiation dose of both groups were measured by using
thermoluminescence dosimeter. Results Under 3 exposure conditions (78 kV, 16 mAs; 86 kV, 25 mAs; 90 kV,
31.5 mAs) in the phantom experiments, the radiation dose of objects who used vertical protective shielding and
located it in 1 m away from the phantom was (0.127±0.005) μGy, (0.373±0.007) μGy and (0.780±0.136) μGy,
significantly lower than that without protective shield was (0.987±0.013) μGy, (2.092±0.326) μGy and
(2.389±0.595) μGy (P<0.01). And the closer protective shield was away from the phantom, the better
protection effect would be achieved. The results showed that for the subjects in the experiment who
underwent X-ray radiation under the exposure conditions of 76 kV and 16 mAs and protected by wearing
a lead protective skirt, the measured radiation dose was (41.087±4.787) μSv and (39.792±4.228) μSv
respectively, without significant difference (P=0.475>0.05). Conclusion The vertical protective shieldcould effectively protect the subjects from X-ray radiation during DR photography. And it would be more
effective and time-saving than the lead protective skirt.
陈基炜1a, 2，涂彧1b，汤在祥1a，吴茵1c，吴鑫翰 2，黄圣雁 2. 立位防护屏在DR立位摄片时防护效果的评估[J]. 中国医疗设备, 2016, 31(10): 103-105.
CHEN Ji-wei1a,2, TU Yu1b,TANG Zai-xiang1a, WU Yin1c,WU Xin-han2, HUANG Sheng-yan. Evaluation of the Protection Effectiveness of Application of Vertical
Protective Shield in DR Photography in Standing Position. China Medical Devices, 2016, 31(10): 103-105.
