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Trial of the network system for high quality teleradiology using ISDN.

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Summary

 Data comunications of medical images are now conducted in various forms in many medical institutions Our system can trasmit digital image data of CT and MRI based on the DICOM 3.0 standard via its server in the LAN of the clinic. The system is also connected to Hokkaido University hospital and to Teishinkai hospital as the WAN in the same manner.
 We studied the network system and evaluated its performance. As the result, the image transmission time was 1.0$B!A(J11.0 (sec/image) in the LAN using a switch hub, and 17.0$B!A(J38.0 (sec/image) in the WAN using ISDN.
 We believed that this system was a first stage in teleradiology. Therefore, we must solve main problems: the transfer speed and compression rates of image data in the ISDN, in terms of communication time, total cost, and quality of transferred images.

Key words:ISDN, DICOM3.0, teleradiology, LAN, WAN
$BKLJ|5;=Q;o(J 57:25$B!>(J29,1997
 

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