The first Japanese implementation of IHE-ITI EUA/PSA and the Impact of Visual Integration

In Japan, two PCs (for example: EMR and PACS viewer) are commonly used for the Hospital Information System in one clinical unit. Many physicians have to enter a user ID and password to login to these systems. To solve the troublesome manipulation, we developed the function of the IHE-ITI En-terprise User Authentication (EUA) and Patient Synchronized Applications (PSA). We developed middle-ware for the EUA/PSA to reduce the implementation load among the EMR, PACS-viewer, report-viewer, radiation scheduling sys-tem and radiation information system. The EUA/PSA was based on the HL7 CCOW standard and did not support multi PCs. So we enhanced the EUA/PSA mechanism for use with several PCs. We realized that EUA/PSA were essential in a multi-system environment. Our middle-ware resolved the complexities of the application implementation. The estab-lished guideline was useful to unify the user interfaces of each application. We found that the EUA/PSA function will be inevitable for visual integration.MEDINFO200