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Proceedings Paper

Java-based cryptosystem for PACS and tele-imaging
Author(s): Donny Tjandra; Stephen T. C. Wong; Yuan-Pin Yu
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Paper Abstract

Traditional PACS systems are based on two-tier client server architectures, and require the use of costly, high-end client workstations for image viewing. Consequently, PACS systems using the two-tier architecture do not scale well as data increases in size and complexity. Furthermore, use of dedicated viewing workstations incurs costs in deployment and maintenance. To address these issues, the use of digital library technologies, such as the World Wide Web, Java, and CORBA, is being explored to distribute PACS data to serve a broader range of healthcare providers in an economic and efficient manner. Integration of PACS systems with digital library technologies allows access to medical information through open networks such as the Internet. However, use of open networks to transmit medical data introduces problems with maintaining privacy and integrity of patient information. Cryptography and digital timestamping is used to protect sensitive information from unauthorized access or tampering. A major concern when using cryptography and digital timestamping is the performance degradation associated with the mathematical calculations needed to encrypt/decrypt an image dataset, or to calculate the hash value of an image. The performance issue is compounded by the extra layer associated with the CORBA middleware, and the use of programming languages interpreted at the client side, such as Java. This paper study the extent to which Java-based cryptography and digital timestamping affects performance in a PACS system integrated with digital library technologies.

Paper Details

Date Published: 13 July 1998
PDF: 8 pages
Proc. SPIE 3339, Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues, (13 July 1998); doi: 10.1117/12.319788
Show Author Affiliations
Donny Tjandra, Univ. of California/San Francisco School of Medicine and Philips Medical Systems (United States)
Stephen T. C. Wong, Univ. of California/San Francisco School of Medicine and Philips Medical Systems (United States)
Yuan-Pin Yu, Philips Medical Systems (United States)


Published in SPIE Proceedings Vol. 3339:
Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues
Steven C. Horii; G. James Blaine, Editor(s)

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