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PC/NT-based PACS display workstation with ATM and DICOM connectivity

We have developed a portable DICOM-compliant low- cost PC NT- based display workstation with Asynchronous Transfer Mode (ATM) and Ethernet connectivity to Picture Archiving and Communication System (PACS). This paper describes the hardware components and software system of the workstation, and compares the performance of ATM and Ethernet connectivity in the workstation. The display workstation consists of a DOME Md2/PCI board, two 1,600 X 1,280 resolution monitors, and an asynchronous transfer mode (ATM) OC-3 communication board. Implemented software includes: (1) a DICOM server, which automatically receives images from the DICOM-compliant PACS Controller: (2) a patient folder manager, which incorporates the local database to group multiple studies from individual patients; (3) a sophisticated display program with automatic image pre-processing functions, such as pre-set window and level; and (4) a DICOM query and retrieve services to retrieve images from DICOM-compliant archive. The display workstation demonstrates that: (1) the PC/NT-based display workstation is 100% DICOM-compliant. (2) DICOM query and retrieve services support convenient multi-level retrieval of historical images from PACS archive. (3) Integration of DICOM and ATM into the display workstation facilities and speeds up image communication. (4) Patient folder management provides hierarchical image storage for individual patients, which consequently facilitates review of image. This paper demonstrates that the PC/NT based full-functioned display workstation can be implemented cost-effectively for PACS applications.