Identification of infiltrates, atelectasis, pleural effusions and leaks. ▪, Radiologists' positive findings; □, intensivists' concordant findings (those that were in agreement with the radiologist); ▩, intensivists' discordant films, and ▪, intensivists' over-reads (a subgroup of the discordant films). There was no statistical significance (P < 0.05) between the two groups.