The Mayo Clinic and IBM Rochester, Minnesota, have jointly developed a picture archiving, distribution and
viewing system for use with Mayo's CT and MRI imaging modalities. Images are retrieved from the modalities
and sent over the Mayo city-wide token ring network to optical storage subsystems for archiving, and to server
subsystems for viewing on image review stations. Images may also be retrieved from archive and transmitted
back to the modalities.
The subsystems that interface to the modalities and communicate to the other components of the system are
termed Image Acquisition Units (LAUs). The IAUs are IBM Personal System/2 (PS/2) computers with specially
developed software. They operate independently in a network of cooperative subsystems and communicate with
the modalities, archive subsystems, image review server subsystems, and a central subsystem that maintains information
about the content and location of images. This paper provides a detailed description of the function and
design of the Image Acquisition Units.