Research progress on the diagnostic reference level for CT examination in children
Computed tomography(CT)examination may expose patients to a high radiation dose.The reduction of radi-ation dose in pediatric CT examinations is becoming increasingly important.The diagnostic reference level(DRL)is a prac-tical tool that can achieve optimization of protection and reduce radiation dose in pediatric CT examinations.This article provides a brief summary of the concept,development methods,current situations by country,and issues related to the DRL in pediatric CT examinations,aiming to provide a references for radiation protection optimization in pediatric CT examina-tions in China.
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