title: [The detectability of osteoarticular lesions of the extremities on the television monitor].
abstract: The diagnostic accuracy of the light-box reading of conventional (film screen) radiographs of the extremities was compared with that of the same set of images displayed on a 1 k x 1 k interactive monitor after laser digitization. 389 alterations (23 nondisplaced fractures, 129 soft-tissue calcifications and 237 articular bone erosions), identified by two experienced radiologists on 66 conventional radiographs, were the reference standard. ROC statistical analysis was performed on 1,556 observations expressed by four readers. The overall diagnostic performance of the two display modalities were substantially equivalent: no statistically significant differences resulted on the whole, but two individual readers performed better with conventional images. No overall nor individual statistically significant difference was reobserved for the subset of articular erosions either. Light-box reading of conventional radiographs allowed a higher number of calcifications in the soft-tissues and of proximal (carpal) abnormalities to be detected. Although our results indicate the overall high fidelity of monitor-displayed laser-digitized images, major improvements in the performance of digital diagnostic workstations are still required before adopting monitors for routine radiologic activity.
authors.affiliation: Servizio di Radiodiagnostica e di Fisica Sanitaria, Ospedale San Gerardo, Monza, Milano.
authors.forename: E
authors.initials: E
authors.lastname: Salvini
authors.forename: G
authors.initials: G
authors.lastname: Zincone
authors.forename: I
authors.initials: I
authors.lastname: Macchi
authors.forename: A M
authors.initials: AM
authors.lastname: Mariani
authors.forename: A
authors.initials: A
authors.lastname: Crespi
authors.forename: N
authors.initials: N
authors.lastname: Paruccini
mesh_terms: D005069:Evaluation Studies as Topic; D005545:Forefoot, Human / Q000000981:diagnostic imaging*; D006225:Hand / Q000000981:diagnostic imaging*; D006801:Humans; D015588:Observer Variation; D012372:ROC Curve; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000295:instrumentation; D011873:Radiology Information Systems / Q000295:instrumentation / Q000706:statistics & numerical data; D013690:Television / Q000295:instrumentation* / Q000706:statistics & numerical data; D014955:Wrist Joint / Q000000981:diagnostic imaging*; D014963:X-Ray Intensifying Screens / Q000706:statistics & numerical data
vernacular_title: Riconoscibilità delle lesioni osteoarticolari delle estremità al monitor televisivo.