| ZHANG Meng-long,DUAN Yu-ting,XU Yu-jun,LAN Di,ZHANG Liang-an.Optimization of radiological protection of patients undergoing digital radiography[J].Chinese Journal of Radiological Medicine and Protection,2013,33(2):183-186 |
| Optimization of radiological protection of patients undergoing digital radiography |
| Received:June 03, 2012 |
| DOI：10.3760/cma.j.issn.0254-5098.2013.02.019 |
| KeyWords:Optimization Digital radiography Radiation dose Quality control Exposure index |
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| Abstract:: |
| Objective To identify the necessity to carry out optimization procedure in routine digital radiography (DR) by evaluating changes of patient radiation dose and image waste ratio before and after optimization. Methods Two hundred patients with near-standard body build were enrolled in the study. Half of them undertook routine examination, and the others undertook the examination with bestly-optimized protocol. The dose-area product (DAP) and entrance surface dose (ESD) were recorded. The image waste ratios in 2 groups were calculated and the reasons for image waste were analyzed. The radiation dose and image waste ratio before and after optimization were compared. Results The ESD, DAP and image waste ratio in bestly-optimized radiography were significantly lower than those in non-optimized radiography (z=9.31, 16.22, P<0.05; χ2=36.5, P < 0.05). Conclusion Using the bestly-optimized digital radiography, the patient radiation dose and image waste ratio are effectively reduced. |
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