No abstract available.
Humans ; Informatics*

OBJECTIVE: To investigate a belt-type, biomedical mobile device capable of measuring patients' biomedical signals and sending the biomedical data to a remote medical server. This device was designed to measure and record ECG and motion signals continuously for a moving subject and, on in the event of an emergent situation, to notify a remote doctor of the situation by transmitting data on the emergent situation to a remote server through a CDMA network. METHODS: The developed system is composed of three parts: biomedical signal acquisition, biomedical data recording, and data transmission. We conducted four types of experiment in order to evaluate the developed system's accuracy, reliability, operability, applicability to daily life, and SMS alarm function. First, we tested the accuracy of the R-R interval by comparing the signals measured via the developed system with those via a commercialized ECG system while the subjects were sitting, standing, lying or cycling. Second, we tested the reliability of the transmitted data to the remote server when two types of emergent events are generated in the developed system using a patient simulator, and measured the battery life to determine the system life. Third, we experimentally examined the accuracy of the corresponding data transmitted to the remote server via the CDMA network when two types of event are generated for each of seven types of action (sitting, standing, standing up from the seat, ordinary walking, fast walking, cycling, and running) during daily life. Lastly, we tested the SMS alarm function. RESULTS: The acquisition and comparison of the subjects' biomedical signals and motion signals confirmed the accuracy, reliability, operability and applicability of the developed system to daily life. The ability of the system to monitor the ECG signals and motion signals during daily life was also demonstrated. CONCLUSION: The system was demonstrated to be very applicable to subjects requiring continuous monitoring for chronic disease and health management. Therefore, the developed system is expected to play an important role in building ubiquitous healthcare systems in Korea in the near future.
Chronic Disease ; Deception ; Delivery of Health Care ; Electrocardiography ; Humans ; Korea ; Organothiophosphorus Compounds ; Walking

OBJECTIVE: The development of information communication technology (ICT) and the demand for managing the healthy lives of individuals are accelerating the informatization of the health and medical field. Considering this environment and the needs of the individual, this paper has designed and developed a web and mobile storage device-based personal health record (PHR) system that individuals can manage by themselves anywhere, anytime, whether on-line or off-line. Based on the experience of implementing the system, its development method, results, and relevant technical issues are described. SYSTEM DESIGN AND DESCRIPTION: This system is implemented to manage PHR, including vital signs and ingested/consumed calories for a lifetime by connecting a PHR-integrated web server to each hospital's information system, and the PHR programs installed in the individual's PC or USB flash memory drive. To achieve this, an interface module, web server system, and PHR viewer program for individuals are developed. RESULTS: When it is off-line, the PHR program is operated to inquire the data saved in the DB, and the self-measured information can be inputted. When it is on-line, it calls the web service function to inquire the medical information, including hospital visit history, prescription history, diagnosis result, image inspection result and medical treatment result. CONCLUSION: This system connects home and mobile healthcare to hospitals but minimizes information leakage because the data is not accumulated. By loading a plug & play, PHR viewer to an easy-to-carry mobile storage device, the systems supports a sustainable health management.
Access to Information ; Delivery of Health Care ; Health Records, Personal ; Humans ; Information Systems ; Medical Records ; Memory ; Prescriptions ; Vital Signs

OBJECTIVE: The purpose of this paper was to quantify both the output and the impact of the relationship between Korean medical schools and their human resource departments and their ability to support the basic data for research goals of Korean medical schools. METHODS: The SCOPUS database was used to identify SCIE (scientific citation index expanded) articles produced by Korean medical schools between 1997 to 2008. The SCIE criteria, impact factors, and citation numbers were classified according to the database of Thomson Scientific Company. The human resources of medical schools were collected, such as the number of professors, graduate students, clinical fellows, residents, interns, and research assistants, through use of the medical deans' association biannual report. RESULTS: There was a significant difference across Korean medical schools in the number of the SCIE articles and citation numbers, resulting in only a few institutions producing most of the impact. Among the variables, the proportion of professors of basic medical science (p<.01) and the number of research faculties per professor (p<.01), were related significantly to the SCIE per professor. The only factor affecting both SCIE number and SCIE per professor was the number of research faculties per professor. The number of graduate students in the medical school had no impact on productivity. CONCLUSION: For the medical schools with restricted resources, the strategic plans for proper management of human resources are needed to promote scientific publication.
Efficiency ; Humans ; Korea ; Publications ; Schools, Medical

OBJECTIVE: Patients are becoming more active in communicating with doctors, forming e-communities, and participating in decision-making process of their treatment plans. However, only a few studies have examined how digitalized healthcare affects patients' and doctors' attitudes towards medical care services and deliverance structure, and the problems that might stem from these changes. In this study, we 1) explored the current changes in patients' healthcare utilization patterns and delivery structures, 2) examined the emerging behaviours and awareness of the participants, and 3) proposed how to prepare for such changes. METHODS: Face-to-face interviews and a group discussion with both Korean and US experts on consumer health informatics were conducted. Interview guidelines were developed based on reviews of recent studies on consumer health informatics. RESULTS: While the American scholars had larger expectations about the scope of the changes in the health care system induced by the digitalization of healthcare, compared to the Korean scholars, the interviewees and group discussion participants from both countries all agreed on the changes in medical environment and the increasing importance of medical information. The changes induced by the digitalization of healthcare were categorized as follows: (1) in the structure and location of healthcare service delivery, (2) in the doctor-patient communication methods, and (3) in the role of patients and increasing emphasis in empowerment. CONCLUSION: We expect that digitalized healthcare will continue to affect the doctor-patient relationship and change the deliverance structure. In order to better prepare for the fundamental paradigm shift in the healthcare system and increase the benefits to society of these changes, continuous and concerted policy efforts to protect the privacy and security of private information, alleviate the digital divide, and secure the quality of digitalized clinical knowledge will be required.
Delivery of Health Care ; Humans ; Informatics ; Power (Psychology) ; Privacy

OBJECTIVE: The contents of microbial information are complicated because of being hierarchical, duplicated as well as their changes are continuous and various. Much of time and cost are required for maintaining, expanding the information after representing them into a relational database. The relational database is not adequate to make the information sharable via Internet. In addition, user's meta-knowledge is insufficient to use the information via Internet and users may not be able to cope with the continuous changes of microbial information through the static web interface. Therefor, this study is conducted to develop an active microbial web database for resolving those problems. METHODS: To solve these problems, object-oriented database, which was able to represent the complicated contents and knowledge, was used, and intelligent agents were implemented to cope with the continuous evolution of microbial information. Also, they were incorporated into user interface to assist users in an interactive environment, who want to use information via Internet. RESULTS: The implemented system have shown advantages of solving difficulties arising from hierarchical and duplicated microbial data. It showed the possibility to share and manage the complex microbial data via Internet. It helped the system to be implemented as the active database, information stored in the object-oriented database. CONCLUSION: This study indicates that a similar approach may lead to develop an expert system based on the web and active database, which is able to be evolved, and to develop intelligent interface, using the agent.
Expert Systems ; Internet

OBJECTIVE: Despite of increasing number of websites for health information, there have been few studies on the issues of enhancing the service quality of health information websites. In this article, we examine and identify the key service attributes of the websites for health information, thereby providing a direction to improve the website service quality. METHODS: The research takes three steps to identify customers' requirements for health information websites. Starting from a comprehensive literature review and brainstorming, we narrow down the possible candidates of key service attributes as going through the steps. Lastly, conducted is an extensive customer survey followed by multivariate statistical analyses such as reliability tests, principal component analysis, discriminant analysis, etc. RESULTS: Based on 250 questionnaires completed through the online survey, derived are 9 key service attributes for efficient operations of healthcare websites. These include reliability, information transparency, customer care, capability, publicity, ease-of-use, security and integrity, responsiveness, and elucidation. CONCLUSION: The research results presented in the paper will provide an efficient way of operating healthcare websites. Moreover, the insights from the study will be a good stepping? stone toward a marketing strategy for the website providers under a fierce competition.
Delivery of Health Care ; Discriminant Analysis ; Marketing ; Principal Component Analysis ; Surveys and Questionnaires

OBJECTIVE: This study investigates consumers' choice regarding source of health information. Specifically, the relationships between consumers' socioeconomic characteristics, health status, attitude to health, information needs and source of health information were explored. METHODS: Type of health information sources includes web-based, health professional, and mass-media types. Structured questionnaires were completed by 1,189 consumers through a telephone survey, and 622(52.3%) responses were included in analysis. RESULTS: A key finding was the significant difference for accessing health information by customer's characteristics, although the strong preference was shown in web-based resource. Accessing channels were different by consumer's needs of health information and attitude to health as well as consumer's age, job, education, and economic status. CONCLUSION: Consumer behaviors are likely to optimize physical and psychosocial health potentials through health information. Despite a growing number of available web-based health information resources, consumers continue to face a variety of barriers as they attempt to access these resources. Meeting consumer's needs for health information is an important role for all providers of health information.
Access to Information ; Attitude to Health ; Education ; Health Occupations ; Information Services ; Surveys and Questionnaires ; Telephone

OBJECTIVE: Telemedicine uses common technologies that provide a conduit for information exchange between physicians nurses and patients. In addition to patient records, medical professionals can obtain vital signs and other reference data through telemedicine applications. also, recent advancement in RF technology and wireless communications has enabled the development of noble networks. Mobile telemedicine involves more than just communicating via mobile phone of PDA that sends and receives medical data on Portable Internet. METHODS: This paper describes the design of a mobile telemedicine PDA prototype based on Embedded Linux that can be used to monitor the medical information using a single board computer(SBC). RESULTS: The device hardware architecture consist of signal conditioning circuit, single chip micro-controller, LCD display and wireless network interface card(W-NIC). Embedded Linux was ported as its operating system and application software was developed QT/embedded 2.3.7. CONCLUSION: This system would be very useful for patients with chronic illness, especially in an emergent environment, and for containing medical cost in the aged society.
Cellular Phone ; Chronic Disease ; Humans ; Internet ; Local Area Networks* ; Medical Records ; Telemedicine ; Vital Signs

OBJECTIVE: The purpose of this study is to develop telesurgical conference system by establishing a gigabit broad-banded network between hospitals in Korea and Japan using Digital Video Transport System(DVTS) on internet protocol, and to audit performance of this system through questionnaire study. METHODS: The Korea Advanced Research Network(Korean side), the Fukuoka Gigabit Highway(Japanese side), and the Korea-Japan Cable Network(international line)were used for assuring a high speed network connectivity. DVTS streaming was propagated with 30 M bps bandwidth for two channels on IPv4 network. Network security was built with virtual private network solution to guarantee protecting patient's privacy. Technological performance and satisfaction of users were evaluated following the events. RESULTS: The teleconference sessions and live surgery transmission with DVTS on internet protocol using advanced research network were performed successfully. Bandwidth of 60 Mbps for two-line transmission was maintained throughout the conference. The quality of the transmitted pictures had no frame loss with the rate of 30 frames per second. The sound was also clear and the time delay was less than 0.3 sec. Effectiveness of telesurgical conference using advanced network was felt beneficial for 94% of the attendants in questionnaire study. CONCLUSION: Establishing an international telesurgical conference system with high quality digital video transmission over internet protocol using international gigabit network was performed successfully. With the improvement of network engineering, this system is expected to contribute penetration of medical skills and knowledge through network infrastructure.
Internet ; Japan ; Korea ; Privacy ; Surveys and Questionnaires ; Rivers ; Telecommunications*