title: Functionality of gray-scale display workstation hardware and software in clinical radiology.
abstract: This article examines the functional factors crucial for the successful conversion from film-based radiography to radiologic gray-scale display systems, including hardware architecture and software requirements, radiologic workstation operations, and a multilayered intelligent user interface. Radiologic workstation operations are logically decomposed into case preparation, case selection, case presentation, case interpretation, and documentation and presentation of the diagnosis. A multilayered software architecture for an adaptive, intelligent user interface is proposed: a hardware interface layer, an object-oriented layer, and a knowledge-based layer. The knowledge-based layer is composed of three elements: image presentation based on context-dependent models of diagnostic requirements, knowledge-based expert systems for assistance in diagnostic decision making, and computer-assisted diagnosis to alert the radiologist to potential lesions or abnormalities.
authors.affiliation: Department of Radiology, University of Washington Medical Center, Seattle 98195.
authors.forename: B K
authors.initials: BK
authors.lastname: Stewart
authors.forename: T
authors.initials: T
authors.lastname: Gillespy
authors.forename: T A
authors.initials: TA
authors.lastname: Spraggins
authors.forename: S J
authors.initials: SJ
authors.lastname: Dwyer
mesh_terms: D003936:Diagnosis, Computer-Assisted; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008838:Microcomputers; D011872:Radiology Department, Hospital; D011873:Radiology Information Systems; D012984:Software; D014481:United States