OBJECTIVE: To solve the ESB bus performance and safety problems caused by the explosive growth of the hospital's business, and to ensure the stable interaction of the hospital's business system. METHODS: Taking the construction of our hospital's information system as an example, we used AlwaysOn, load balancing and other technologies to optimize the ESB bus architecture to achieve high availability and scalability of the hospital's ESB bus. RESULTS: The ESB bus high-availability architecture effectively eliminates multiple points of failure. Compared with the traditional dual-machine Cluster solution, the security is significantly improved. The nodes based on load balancing can be scaled horizontally according to the growth of the hospital's business volume. CONCLUSIONS The construction of the ESB bus high-availability architecture effectively solves the performance and security issues caused by business growth, and provides practical experience for medical information colleagues. It has certain guiding significance for the development of regional medical information.
Hospital Information Systems ; Information Systems

The Ministry of health of Vietnam has considered to apply the information technology (IT) and establish the health information system. The MOH also considered to set up the National health and medical information system as well as strategy of development, objectives, service products and solutions for this system.
Information Management ; Information Systems

To improve and keep the competitiveness, it is necessary to keep pace with available changes in technology, and it is essential to establish the flexible and accurate information system about the disease. And for the accurate decision-making, target setting and prediction of movement, the estimating of the short- and long-term effects of the strategies of disease related service are required. But the limited informations, including all of knowledge of leprosy, make it difficult to estimate them properly. To achieve the more effective leprosy related service, we have to make the effort to crate the more accurate system. To proffer the idea for the development of information monitoring, we present the reviews of some articles about the information theories that used the leprosy related service.
Information Systems ; Information Theory ; Leprosy*

Hospital Information Systems ; Humans ; Radiology Information Systems

The World Wide Web provides the means for theintegration of clinical computer systems. Extensible Markup Language (XML) and Extensible Stylesheet Language (XSL) are newly developed and standardized Internet protocols. Development of custom data entry forms requires significant programming resources in clinical information system development and management. Visual design tools and a modifiable, template-driven approach may facilitate this process. However, these approaches generally require the predefinition of data form element types. This paper describes an XML/XSL-based technology enabling post hoc definition of elementary and composite data entry form element types.
Computer Systems ; Information Systems ; Internet

With the widespread dissemination of picture archiving and communication systems (PACSs) in hospitals, the amount of imaging data is rapidly increasing. Effective image retrieval systems are required to manage these complex and large image databases. The authors reviewed the past development and the present state of medical image retrieval systems including text-based and content-based systems. In order to provide a more effective image retrieval service, the intelligent content-based retrieval systems combined with semantic systems are required.
Radiology Information Systems ; Semantics

In this study, we developed an order communication system (OCS) gateway, which observe the protocol of HL7 standard and is operated on PC. In the aspect of architecture, the OCS gateway consists of three modules, which are message transmission/reception, data processing, and security. In the aspect of user interface, the OCS gateway consists of two main screens, which are order data management and message transmission. The main function of the OCS gateway is to convert the order records such as pharmacy, observation and diagnostic study, radiology, other diagnostic study, and treatment to a message, which observe the protocol that presented by HL7 standard, and transmit the message to other OCS gateway. To enforce the security of this gateway, we applied a hybrid security method using both Rivest-Shamir-Adleman (RSA) and Data Encryption Standard (DES). With the developed OCS gateway, different OCS systems in the inside and outside of the country can exchange their order data effectively and safely. Because it is developed for PC base Windows operating system, this gateway is more transplantable to the existing hospital information system (HIS) which is constructed on PC.
Hospital Information Systems ; Pharmacy

In medical database systems of security environments, multiple versions are used so as to prevent covert channel between transactions with different security level. Like the existing database systems, multilevel secure medical database systems can also occur various failures. Although the system was fault, the consistency and security for medical information must be guaranteed to establish reliable system from failures. It is difficult issues to prevent covert channel and maintain the serializability of transactions from various failures. This paper proposes multilevel secure recovery algorithms to solve failures from dynamic multiversion control and proves the correctness as to them. The proposed algorithms are very good for the multilevel secure reliability of long read-only transactions.
Hospital Information Systems*

A survey on quality of health information system at grassroots level was conducted 80 communes in four provinces, which cover 1.718 households, were selected randomly. The main finding are following: (1) the health indicators reported from commune health station are at low quantity and quality as required by the Ministry of Health. Most of data reported from the commune health station are under reported in comparison with the data from the survey because it includes only data on the patients who came to the health station for consultation and treatment. (2) the quality of health information from commune health station was improved when the village and commune health workers have received training on health information statistics, with the participation of the community.
Information Systems ; Popular Works

This paper describes the RAC installation process and some notes. Comparing with HA scheme, RAC Cluster technology can greatly improve the system performance.
Hospital Information Systems ; Software