title: Detection of subtle pulmonary disease on CR chest images: monochromatic CRT monitor vs color CRT monitor.
abstract: To clarify the diagnostic efficacy of color soft-copy computed radiographic (CR) images of the chest in the detection of subtle pulmonary abnormalities. Twenty observers compared 87 soft-copy CR images on four types of CRT monitor (nonmagnified monochromatic CRT, magnified monochromatic CRT, nonmagnified color CRT, and magnified color CRT). Of 87 test images, 45 (including two identical sets of 12 images to test intraobserver variability) were abnormal and 42 (including two identical sets of 12 images) were normal. Of the 45 abnormal images, 15 showed subtle abnormalities, 15 showed mild abnormalities, and 15 showed obvious abnormalities. In the receiver operating characteristic (ROC) analyses, there were no statistically significant differences among the four types of CRT display formats in the detection of subtle abnormalities. Color CRT monitors can replace monochromatic CRT monitors without any loss in the ability to detect subtle interstitial lung disease.
authors.affiliation: Department of Radiology, Nagoya University School of Medicine, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Iwano
authors.forename: T
authors.initials: T
authors.lastname: Ishigaki
authors.forename: K
authors.initials: K
authors.lastname: Shimamoto
authors.forename: K
authors.initials: K
authors.lastname: Inamura
authors.forename: T
authors.initials: T
authors.lastname: Maeda
authors.forename: M
authors.initials: M
authors.lastname: Ikeda
authors.forename: T
authors.initials: T
authors.lastname: Ishiguchi
authors.forename: T
authors.initials: T
authors.lastname: Kozuka
mesh_terms: D000328:Adult; D000368:Aged; D003116:Color; D003626:Data Display; D003937:Diagnosis, Differential; D004867:Equipment Design; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D012372:ROC Curve; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D011858:Radiographic Magnification / Q000295:instrumentation; D011873:Radiology Information Systems / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*