Hokkaido university picture archiving and communication system (HU-PAC
S) began clinical service in the Hokkaido university hospital in 1989.
For the first 5 years the service was limited to the radiology depart
ment and the outpatient clinics. This paper describes the outline of t
he HU-PACS, how we have extended the service to all wards and managed
the increasing image data accompanied by the installation of new CTs a
nd MRI since 1994. A plan of future HU-PACS is also described. (C) 199
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