Journal of Korean Society of Medical Informatics最新文献

{"title":"A Belt-type Biomedical Mobile Device","authors":"Joo-Hyun Hong, E. Cha, Tae-soo Lee","doi":"10.4258/JKSMI.2009.15.3.351","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.351","url":null,"abstract":"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. (Journal of Korean Society of Medical Informatics 15-3, 351-358, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127108545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of CDSS for Drug Prescriptions Based on Success Measures","authors":"Jinwoo Park, Y. Chae, Young Taek Lee, Koungwon Cho, Jung Hee Kim, Byung Hwa Lee","doi":"10.4258/JKSMI.2009.15.3.293","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.293","url":null,"abstract":"Objective: The Clinical Decision Support System (CDSS) for drug prescriptions was developed by integrating the com- puterized physician order entry (CPOE) system to support doctors and pharmacists in making correct decisions on prescribing drugs in line with the prescription guidelines by the Health Insurance Review Agency (HIRA). The objective of this study was to evaluate the performance of the CDSS with respect to system quality, information quality, and user satisfaction in reducing prescription errors. Methods: The study was based on survey data from 38 hospitals that were using the CDSS for drug prescriptions. To identify factors influencing the performance of CDSS, multiple linear regression and chi-square analyses were performed. Results: Regression analysis showed that the variables for system quality and information quality significantly influenced the overall system performance. Specifically, ease of understanding the results and terminology assy- stem quality measures significantly influenced user satisfaction. Furthermore, based on chi-square analysis, two independent variables (ease of understanding results and decision support functions) were statistically significant with respect to all four dependent variables (information satisfaction, system satisfaction, willingness to recommend to other hospitals, and drug safety). Conclusion: Based on this study, users should be educated to improve their understanding of the system,and system and information quality should be continuously monitored to improve user satisfaction. (Journal of Korean Society of Medical Informatics 15-3, 293-301, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125451873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Paradigm Shift in the Healthcare Delivery System with the Emergence of the 'Ambient Care' Environment","authors":"M. Kim, Jeongeun Kim","doi":"10.4258/JKSMI.2009.15.3.313","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.313","url":null,"abstract":"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. (Journal of Korean Society of Medical Informatics 15-3, 313-320, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114609278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Consumers' Perceptions and Requirements for Personal Health Records in Korea","authors":"Sunyoung Kim, H. Kim, J. Bae, Y. Kim","doi":"10.4258/JKSMI.2009.15.3.273","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.273","url":null,"abstract":"Objective: The aim of the study was to identify factors influencing the willingness of healthcare consumers to use personal health records (PHR) and to investigate the requirements for PHR services. Methods: A face-to-face interview was conducted with 400 healthcare consumers from the 3 rd -18 th of July 2008 using a structured questionnaire. To identity factors affecting the willingness to use PHR and to pay for PHR services, logistic regression analysis was performed. To investigate the requirements for PHR services according to the willingness of the consumers to use PHR and to pay for PHR services, t-test analysis was conducted. Results: Of the 400 healthcare consumers, 239 (59.8%) were willing to use PHR and 111 (27.8%) were willing to pay for PHR services. The willingness to use PHR was higher in the elderly, those with a disease, and those with experience to use health information on the Internet, and the willingness to pay for PHR services was higher in those with a relatively high income (p 6,000,000 won and 4,500,000- 6,000,000 won, respectively, than in those earning <1,500,000 won, and approximately 1.96 times (95% CI=1.18-3.27) higher in those with experience using health information on the Internet than in those without experience. The willingness to pay for PHR services was approximately 5.9 times (95% CI=1.84-19.06) higher in those with an income of 4,500,000- 6,000,000 won than in those with an income <1,500,000 won (p<0.05). Demands for test results, medication history, family history, problem list, genetic information, clinical trial information, and social history were significantly higher in those with a willingness to use PHR and those with a willingness to pay for PHR services than in those without willingness to use PHR and those without a willingness to pay for PHR services (p<0.05). Compared to those without a willingness to pay for PHR services, those with a willingness to pay for PHR services showed a significantly higher demand for all the functions (p <0.01). Conclusion: The results of this study suggest that healthcare consumers potentially have a considerable demand for PHR services, and although it is not recognized and used widely yet, PHR is an essential service. In order to enhance people's awareness of PHR and to promote people to use PHR services, we need efforts and initiatives to execute campaigns and education for people to ease access to the service, and to reduce the gap in service utilization skills. (Journal of Korean Society of Medical Informatics 15-3, 273-284, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130139393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of the Extended Technology Acceptance Model to Picture Archiving and Communication Systems in Dental Hospitals","authors":"Hyejung Chang","doi":"10.4258/JKSMI.2009.15.3.265","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.265","url":null,"abstract":"Objective: With the rapid growth of picture archiving and communication systems (PACS) in the healthcare industry, this article describes the users’ satisfaction with PACS by employing functional PACS features and the two concepts of perceived ease-of-use (PEOU) and perceived usefulness (PU), based on the extended technology acceptance model (TAM). Methods: A cross-sectional survey was conducted with dentists in 25 dental hospitals which were cluster sampled from the national registry of 132 dental hospitals. Of the 204 respondents (response rate 81.6%), the data of 159 PACS users were analyzed using the structural equation modeling method. Results: The fitted model showed significant relations between the technical components and the TAM variables, via the following three significant paths: hardware to PEOU, and software to PEOU and also to PU. Moreover, the critical path of TAM variables was observed: PEOU→PU→SAT. Therefore, the model produced three significant routes: hardware→PEOU→PU→SAT, software→PU→SAT, and software→PEOU→PU→SAT. Conclusion: Contrary to expectations, the direct effect of PEOU on user satisfaction was not significant. The final model provided critical paths from technical components to user satisfaction, by utilizing PEOU and PU as intermediary, latent factors. (Journal of Korean Society of Medical Informatics 15-3, 265-272, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125108675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current Status of Scientific Citation Index Expanded Article Publications and Relationship with the Human Resources of Medical Schools in Korea","authors":"J. Kang, S. H. Park","doi":"10.4258/JKSMI.2009.15.3.321","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.321","url":null,"abstract":"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. (Journal of Korean Society of Medical Informatics 15-3, 321-340, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114915828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technical Considerations for Successful Implementation of a Barcode-based Medication System in Hospital","authors":"Jong Soo Choi, Dongsoo Kim","doi":"10.4258/JKSMI.2009.15.3.303","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.3.303","url":null,"abstract":"Objective: To identify the technical considerations in implementing a barcode-based medication system and propose practical solutions for successful implementation of the system. In order to reduce medical errors related to medication and blood transfusion, we analyze various factors that hinder the successful implementation of the barcode-based medication system and discuss issues involved in the effective adoption of such a system. Methods: The barcode-based medication system of this research uses one-dimensional, barcode bands on patients’ wrists and two-dimensional barcodes attached to drug bags and blood bags. PDAs with barcode reading capability and wireless networking function are used, which enables Point of Care. The business process for applying the developed system and the current status of the system usage are analyzed. Results: The factors causing a variety of system failures in the demonstration and pilot periods were identified and categorized as including PDA malfunction, PDA battery discharge due to users’ carelessness, confusion in reading barcodes and so on. Conclusions: It is expected that the analyzed obstructive factors and the proposed technical considerations addressed in this paper can help other hospitals implement similar barcode-based medication systems successfully. Ultimately, this research will contribute to reducing medical errors and improving quality of patient care. (Journal of Korean Society of Medical Informatics 15-3, 303-312, 2009)","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132437232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Study on Pupil and Iris Segmentation of the Anterior Segment of the Eye.","authors":"H. Kang, Kwang Gi Kim, W. Oh, Jeong-Min Hwang","doi":"10.4258/JKSMI.2009.15.2.227","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.2.227","url":null,"abstract":"Objective: The goal of this study was to develop a novel pupil and iris segmentation algorithm. We evaluated segmentation performance based on a fractal model. Two methods were compared: Daugman’s and our new proposed method. Methods: We received 200 anterior segment images with 3,8722,592 pixels. Here we present an active contour model that accurately detects pupil boundaries in order to improve the performance of segmentation systems. We propose a method that uses iris segmentation based on a fractal model. We compared the performance of Daugman's method and the proposed new method and statistically analyzed the results. Results: We manually compared segmentation with the Daugman's method and the new proposed method. The findings showed that the proposed segmentation accuracy was about 2.5 percent higher than Daugman's method. There was a significant difference (p","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116023865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wireless Clinical Trial of Data Capture using a Personal Digital Assistant","authors":"Sook Kyoung Park, Soowung Park, M. Kang, Y. Chae, Sukil Kim, S. Choy, Inyoung Choi","doi":"10.4258/JKSMI.2009.15.2.235","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.2.235","url":null,"abstract":"Objective: Personal Digital Assistants (PDAs) have the potential to improve clinical trial data collection; however, most current PDA-based clinical data collection systems typically collect and store data in the offline mode, and then transfer the data to an operational database. The purpose of this study was to explore the usefulness of a wireless clinical data collection system for an irritable bowel syndrome trial compared with the traditional paper based data collection. Methods: We have developed a PDA-based data capture system for clinical trials, and tested it in a double-blind trial. Sixty four patients with irritable bowel syndrome were randomly selected and divided into a control group that used the standard paper report forms (CRF) and an intervention group that used the electronic report forms (e-CRF), daily for five weeks. There were 630 data sets consisting of six questions each, and thus 3,570 data points total were collected. Results: The response rate of the control group was significantly higher than that of the intervention group. However, the completeness of the response in the intervention group was higher and the number of input errors per person for the PDA group was lower than in the paper group. Conclusion: A PDA based electronic diary improved the response rate and decreased input errors in an IBS trial. We conclude that mobile devices can be very useful, especially when the proposed design and connectivity aspects have been taken into account.","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126284609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of Cadaver's Sectioned Images to Patient's Head MRIs","authors":"Jin Seo Park, H. Park, D. Shin, M. Chung, Yang-wook Kim, Jun Park, B. Shin","doi":"10.4258/JKSMI.2009.15.2.209","DOIUrl":"https://doi.org/10.4258/JKSMI.2009.15.2.209","url":null,"abstract":"Objective: Cadaver's sectioned images with high resolution and real color could be used as the source of realistic three-dimensional images. If the sectioned images are registered to a patient's MRIs, three-dimensional images with high resolution and real color that fit the patient, can be produced; the three-dimensional images enable realistic virtual surgery for the patient. The objective of this study was to verify the registration of a cadaver's sectioned images to a patient's head MRIs. Methods: The sectioned images of the heads of cadaver were associated with segmented images selected at 3 mm intervals. The patient had his head MR scanned at 3 mm intervals; the MRIs were segmented. Software to register the cadaver's sectioned images to the patient's MRIs was developed. On this software, the corresponding dots were identified on both the sectioned images and the MRIs either manually or automatically using segmented images. Results: The registered sectioned images corresponded to the patient's MRIs. Both manual and automatic registrations were satisfied. Conclusion: Further study is needed for registering sectioned images to actual patients.","PeriodicalId":255087,"journal":{"name":"Journal of Korean Society of Medical Informatics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126220125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}