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J Am Med Inform Assoc 8:460-467 doi:10.1136/jamia.2001.0080460
  • The Practice of Informatics

A DBMS-based Medical Teleconferencing System

Table 1

Test Environment

Item Description
Client PC: Hardware Intel Pentium Pro with 64-MB main memory and 2-GB disk
Dual monitor driven by dual analog PCI VGA card
Software Windows 95 operating system
Network 155 Mbps ATM PCI card
Central server: Hardware SGI Origin200 server with 512-MB main memory and 12-GB disk
Software IRIX operating system
UniSQL DBMS
Network 155-Mbps ATM PCI card
Network: Backbone Dedicated ATM switch with guaranteed 155 Mbps
Local area network Distance less than 1 km
Wide area network Distance about 100 km linked through dedicated ATM switches with guaranteed 155 Mbps
Scenarios: Case consultation Between two physicians in remote locations (WAN). The server sits on one side.
Case conference Resident physicians gathered in one review room. The system is used as a presentation tool accessing the server locally (LAN). Presentation could be seen at a remote location using teleconference features.
Database: Size 10 GB/100 patients
Tables Queries and programs written for each data source. Some degree of manual editing involved.
Multimedia data Most images and video data existed in analog forms. They were digitized for this purpose.

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