Share Email Print

Proceedings Paper

Distributed database design and modeling for PACS
Author(s): Olivia R. Liu Sheng; Hong-Mei Chen Garcia; Chih-Ping Wei; Takeshi Ozeki; Patricia McNulty
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The delivery of an operable Picture Archiving and Communication System (PACS) that will meet a hospital's high performance requirements is hampered by severe bottlenecks encountered in the database (DB) and communication systems of a centralized architecture. As an alternative to a centralized design, a distributed DB design that physically allocates and potentially replicates data across a hospital has been modeled and evaluated for PACS at the University of Arizona. Because of geographic dispersion of image generation and "local interest" in image retrieval, a distributed DB design approach has a liatural appeal to PACS. This paper examines the issues of a distributed PACS DB design, describes our modeling approach, and presents the results of a preliminary performance evaluation of two distributed DB designs vs. a centralized design for PACS The results of our simulation experiments show that there is a significant improvement of response time in a distributed architecture due to the effects of "local reference" and "load balancing."

Paper Details

Date Published: 1 August 1990
PDF: 14 pages
Proc. SPIE 1234, Medical Imaging IV: PACS Systems Design and Evaluation, (1 August 1990); doi: 10.1117/12.19012
Show Author Affiliations
Olivia R. Liu Sheng, Univ. of Arizona (United States)
Hong-Mei Chen Garcia, Univ. of Arizona (United States)
Chih-Ping Wei, Univ. of Arizona (United States)
Takeshi Ozeki, Univ. of Arizona (United States)
Patricia McNulty, Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 1234:
Medical Imaging IV: PACS Systems Design and Evaluation
Samuel J. Dwyer; R. Gilbert Jost, Editor(s)

© SPIE. Terms of Use
Back to Top