A hospital-wide distributed PACS based on intranet

Area of Science:

• Medical Informatics
• Radiology Information Systems
• Digital Imaging

Background:

• Developing a comprehensive hospital-wide Picture Archiving and Communication System (PACS) is crucial for modern healthcare.
• Previous implementations utilized limited storage, necessitating expansion to integrate all hospital imaging modalities.

Purpose of the Study:

• To design and implement an expanded PACS with a 10-terabyte storage capacity for a three-year archive.
• To optimize image acquisition, archiving, and distribution cycles for efficient retrieval.

Main Methods:

• A large distributed image archive was designed with dedicated archive and display servers.
• Separated Fast Ethernet and Ethernet networks were employed for acquisition, archive, and distribution.
• Image distribution utilized a prefetching strategy integrated with the DIOGENE 2 hospital information system and an Intranet server (RADIOLAB) with WWW browser access.

Main Results:

• The system architecture supports a 10-terabyte storage requirement for a three-year archive.
• Image distribution methods include prefetching and Intranet server access via WWW browsers.
• Image files are transmitted using HTTP and handled by OSIRIS software.

Conclusions:

• The developed PACS is designed to meet stringent time requirements, with image retrieval expected in under three seconds.
• The expanded system integrates all hospital imaging modalities, enhancing overall Picture Archiving and Communication System efficiency.
• The combination of distributed storage, optimized networks, and flexible distribution strategies ensures effective PACS performance.