Optimization of radiological protection of patients undergoing digital radiography

VernacularTitle:放射防护最优化对数字X射线摄影中受检者辐射剂量降低的价值
Author: Menglong ZHANG ; Yuting DUAN ; Yujun XU ; Di LAN ; Liangan ZHANG
Publication Type:Journal Article
Keywords: Optimization; Digital radiography; Radiation dose; Quality control; Exposure index
From: Chinese Journal of Radiological Medicine and Protection 2013;(2):183-186
CountryChina
Language:Chinese
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 bestlyoptimized 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; x2 =36.5,P ＜ 0.05).Conclusion Using the bestlyoptimized digital radiography,the patient radiation dose and image waste ratio are effectively reduced.