| With the improvement of domestic medical system and further opening of medical market, digitalized hospital has become the cynosure of the society and an important factor which affects the level of medical treatment, service quality and competition ability of hospital. Recently, HIS and LIS have matured, supporting the daily operation of hospital. However, the applications of information systems such as RIS, PACS still cannot be well achieved, because they involve problems relating to the integration of diverse medical information..To achieve the exchange and share of medical data, some authoritative organizations have established a series of standards, such as HL7 and DICOM. With more and more equipment venders and software development corporations following these standards, the share of independent medical information becomes possible.For the integration of heterogeneous medical information systems, these data exchange standards are indispensable and far from enough. Standards such as DICOM, HL7 etc. have been applied in many medical information systems, but in fact they cannot communicate with each other for their different ways of implementation. Therefore the exchange of information still relies on manual operation in many cases. For this reason RSNA and HIMSS jointly launched IHE (Integrating the Healthcare Enterprise) project in 1998. It is an initiative designed to stimulate the integration of the information systems that support modern healthcare institutions. Its fundamental objective is to ensure that in the care of patients all required information for medical decisions is both correct and available to healthcare professionals.This thesis analyzes the DICOM and IHE standards, and proposes a schema for digitalized hospital taking factual demands of domestic hospital into account. This schema strictly follows DICOM standard, absorbs the design idea of IHE and carries out the patients-centered management idea.
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