Investigation of X-radiation dose to patients in the comprehensive surgical treatment field shelter during interventional therapy

2013 
Objective To explore the dose level of patients in the comprehensive surgical treatment field shelter during interventional therapy with different conditions,and provide the basis for the patients health and safety.Methods Measure of DAP and ESD values was carried out with an Alderson phantom for the two types of different impulse frequency(4 fps/s,8 fps/s,12 fps/s) and different perspective voltage(80 kV,90 kV,100 kV) separated into fluoroscopy and digital acquisition.Results The group of different impulse frequency(4 fps/s,8 fps/s,12 fps/s): the fluoroscopy dose values of DAP in this serial measured respectively for 5.86±0.01μGym2/s,11.66±0.17μGym2/s,13.97±0.05 μGym2/s,and ESD was 8500.27±23.86μGy/s,16 849.30±71.44μGy/s,24630.75±135.20μGy/s;the digital acquisition dose values of DAP was 19.63±0.02 μGym2(10 frame),38.98±0.06 μGym2(10 frame),44.81±0.06 μGym2(10 frame),and ESD was 28 753.70±605.13μGy(10 frame),57 451.23±637.47μGy(10 frame),81 950.62±523.37μGy(10 frame).The group of different Perspective voltage(80 kV,90 kV,100 kV):the fluoroscopy dose values of DAP in this serial measured respectively for 13.97±0.05 μGym2/s,11.66±0.17 μGym2/s,13.97±0.05 μGym2/s,and ESD was 24 630.75±135.24μGy/s,38 847.94±27.63μGy/s,24 630.75±135.20μGy/s;the digital acquisition dose values of DAP was 44.81±0.06 μGym2(10 frame),57.09±0.14 μGym2(10 frame),76.48±0.21 μGym2(10 frame),and ESD was 81 950.62±523.37μGy(10 frame),117 842.01±636.46μGy(10 frame),160 025.91±852.31μGy(10frame).There were statistical difference of dose DAP and ESD in different groups(P0.01).Conclusion The higher the impulse frequency and Perspective voltage,the higher the radiation dose.So in order to ensure the quality of image premise.As low as possible to reduce impulse frequency and Perspective voltage,and take effective protective measures to reduce the intervention of the patients' radiation dose.
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