Objective To explore bedside chest CR in the diagnosis of hyaline membrane disease(HMD) in neonates and the significance in the evaluation of therapeutic effect.Methods The clinical data and CR features in 39 cases of clinically proved HMD were analyzed retrospectively to study the chest CR features.Results In these 39 cases,9 cases were in stage Ⅰ with less transparency and fine particles diffusely,11 cases were in stage Ⅱ with frosted-glass sign and air bronchogram,12 cases were in stage Ⅲ with more less ...