Fig. 3From: Ultra-low-dose chest CT protocol during the second wave of COVID-19 pandemic: a double-observer prospective study on 250 patients to evaluate its detection accuracy A 75-kg male patient complaining from fever, cough and dyspnea; axial CT chest lung window showing bilateral sub-pleural scattered ground-glass patches with fibro-atelectatic changes. a & c Low-dose CT. b & d Ultra-low-dose CTBack to article page