title: A hierarchical model for PACS.
abstract: In this paper, a hierarchical model for Picture Archiving and Communication Systems (HPACS) is presented and implemented at Taichung Veterans General Hospital (TCVGH) in Taiwan. Despite the fact that the HPACS is built on the architecture of the second generation PACS, it offers many improved features and has advantages over the second generation PACS, such as the user security control, fast resource dispatch and efficient resource management. This HPACS can be used as a reference model for a hospital with any scale-size. The real implementation of HPACS is currently undertaken in the Taichung Veterans General Hospital (TCVGH), Taiwan, Republic of China and consists of four phases with the first two phases already completed. It is the first pilot system ever to be implemented successfully in a large-scale hospital in Taiwan. The experiences have illustrated the great promise of the HPACS in the future.
authors.affiliation: Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China.
authors.forename: C W
authors.initials: CW
authors.lastname: Yang
authors.forename: P C
authors.initials: PC
authors.lastname: Chung
authors.forename: C I
authors.initials: CI
authors.lastname: Chang
authors.forename: S K
authors.initials: SK
authors.lastname: Lee
authors.forename: L Y
authors.initials: LY
authors.lastname: Kung
mesh_terms: D003195:Computer Communication Networks; D016494:Computer Security; D003626:Data Display; D006787:Hospitals, Veterans; D008962:Models, Theoretical; D010865:Pilot Projects; D011873:Radiology Information Systems; D012984:Software; D018511:Systems Integration; D013624:Taiwan