title: [Comparison of detectability of liquid crystal displays (LCDs) and film using phantoms of small adenocarcinomas as abnormalities].
abstract: Following the trend of the digitalization of the modalities used for diagnostic imaging, the devices for such imaging have increasingly included monitors. The present study was undertaken to evaluate the usefulness of soft-copy (liquid crystal display; LCD) images of phantoms of small adenocarcinomas using receiver operating characteristic (ROC) analysis of two different display systems: LCD and hard copy (film). A two-tailed paired t-test and the jackknife method (parametric methods) were performed, and no significant differences were found in the area under the ROC curve (AUC) for the pulmonary fields, lungs, ribs, or mediastinum between the film and LCD display systems, and the detectability did not differ between the film and LCD monitors. A Mann-Whitney U test, which is a non-parametric method that applies to the analysis of a small sample, also showed no significant differences in the AUC. The results of this study suggest that LCDs can replace hard-copy film as a display system if the signals.
authors.affiliation: Nihon Institute of Medical Science.
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Mochizuki
authors.forename: Shinji
authors.initials: S
authors.lastname: Abe
authors.forename: Masahiko
authors.initials: M
authors.lastname: Monma
authors.forename: Kojirou
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Toshiki
authors.initials: T
authors.lastname: Adachi
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging*; D003626:Data Display; D006801:Humans; D050866:Liquid Crystals; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D012372:ROC Curve; D011859:Radiography