How much spatial resolution is enough? A meta-analysis of observer performance studies comparing plain films and digital hard copy

摘要

Abstract: A Meta-analysis was performed on the data reported for observer performance studies comparing plain film and digital hard copy on lung interstitial disease and abnormalities of the bones of the extremities. Spatial resolutions from 512$+2$/ to 4096$+2$/ were included. It is concluded that spatial resolution alone is not the determinant of success in observer performance. It is quite possible that an optimum is approached between 1024$+2$/ and 2048$+2$/ and that further improvement in performance will depend upon improvements in gray scale rendition. !20