title: Comparison of digitized and direct viewed (analog) radiographic images for detection of pulmonary nodules.
abstract: The purpose of this study was to compare direct (analog) viewing of thoracic radiographs with digitized images obtained with a radiographic scanner and seven digital cameras for detection of pulmonary nodules. Direct viewing of the analog radiographs was significantly better than all digitized methods (P<0.01). Significant variations exist between the radiographic scanner and the digital cameras. The scanner (Kodak LS75) was significantly better than the Kodak DC 4800 and the Sony DSC-707 cameras (P<0.05). The Nikon 995, Canon EOS-D30, and Ricoh i500 were significantly better than the Sony DSC-707 (P<0.05). There was no significant difference between the Kodak DC 3800, Kodak DC 4800, and the Sony DSC-707. For pairwise comparison of raters (when evaluating the radiographs individually compared with the consensus), the raters matched the consensus rating from 85% to 92% with no significant difference between raters.
authors.affiliation: Department of Clinical Sciences, Kansas State University, Manhattan, KS 66560, USA. armbrust@vet.k-state.edu
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Armbrust
authors.forename: James J
authors.initials: JJ
authors.lastname: Hoskinson
authors.forename: David S
authors.initials: DS
authors.lastname: Biller
authors.forename: R Mackenzie
authors.initials: RM
authors.lastname: Ostmeyer
authors.forename: George A
authors.initials: GA
authors.lastname: Milliken
authors.forename: Jaesung
authors.initials: J
authors.lastname: Choi
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000000981:diagnostic imaging*; D002415:Cats; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*; D011237:Predictive Value of Tests; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D013902:Radiography, Thoracic / Q000662:veterinary