Fig. 2
From: Different chest HRCT scan protocols change the extent of ground glass opacities
A A participant in supine position with ground glass opacities (GGO) in typical localization for atelectasis in the lower parts of the lower lobes indicated with circles. B Same participant in prone position showing no GGO. C Same participant post-positive expiratory pressure (PEP) showing no typical GGO. B and C resulted in the same Warrick score but with less opacification in the lower parts of the lower lobes in B as compared to C. (All slices representing the same lung area by ocular evaluation)