Toward an Integrated Health Information System
Date Issued
2005
Date
2005
Author(s)
鄭伯壎
DOI
en-US
Abstract
The more information technologies be implemented, the more complex the relationship among the information systems inside the healthcare enterprise. In order to minimize the implementation complexity of the information systems in such environment, we base on the software reuse theory and propose an integrated health information system (i-HIS) model to integrate many information systems with HL7/XML information standards in a healthcare enterprise.
The seven implementation facets of the electronic health records (EHR) will be illustrated. They include laws, sharing, security, standard, technology, management, and society facets. Meanwhile, we adopt the HL7 and XML standards to be the basic information infrastructure for information exchange and try to implement some healthcare information systems reusing software components with a plug-and-play mechanism. A brief description of HL7 and XML standards is given. Meanwhile, the concept and implementation guideline of an EHR system is described. Then at least three large information systems implemented in NTUH, which satisfy the HL7/XML information exchange necessities and prove the software reuse theory can be derived into the pyramid i-HIS model, are presented.
The first one is the laboratory information system (LIS) implemented at NTUH. The LIS is a kind of information system used at a healthcare intranet environment, where the medical instruments (MIs) are connected with HL7/XML standard and is managed by the HL7 Interface Engine (HL7-IE). The HL7-IE acts as the plug-and-play key role and proves the component reuse deriving to the pyramid i-HIS model is feasible. The evolution of LIS at NTUH is illustrated, and the original NTUH-LICI guideline for MIs connection is also described.
Secondly, we illustrate a telemedicine information system (TIS) at NTUH. It is an information system designed for the healthcare extranet services. That is, the non-NTUH users can use TIS with authorization. NTUH implements a union telemedicine clinic center (UTCC) platform to supply both the telemedicine clinics registration and on-line EHR process services to hospitals (NTUH and NCKUH) and clinics. A localized HL7/XML Telemedicine Standard draft is implemented to process the patient information exchange tasks and proves the component reuse deriving to the pyramid i-HIS model is acceptable. The integrated telemedicine healthcare equipment (ITHE) module for medical monitoring is also introduced.
The third information system is the national organ donation/transplantation registry system (NODTRS) which is implemented by NTUH. This is an Internet information system which widely serves the contracted medical centers in Taiwan to process the organ donation, transplantation and registry tasks. We derive a localized HL7/XML Organ Transplantation Standard draft inside the patient information exchange processes and prove that the application system reuse can be derived in the pyramidal i-HIS model.
At last, we draw a conclusion for this Dissertation and predict some future works with visions. For example, healthcare hardware/software co-design and healthcare standard VLSI chip designs.
Subjects
軟體再用
介面引擎
Health Information System
Information Exchange Standard
Software Reuse
Interface Engine
Type
thesis
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