• 스마트미디어저널
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• 제12권7호
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• pp.27-42
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• 2023

클라우드 서비스와 IoT 기술의 발전은 클라우드 환경을 급격하게 변화시켰으며, 포그 컴퓨팅 그리고 F2C(Fog-to-Cloud)라는 새로운 개념으로 진화시켰다. 그러나 이기종의 클라우드/포그 레이어가 통합됨으로써, 최종 사용자 및 에지 장치에 대한 접근 제어 및 보안 관리의 문제가 발생할 수 있다. 본 논문은 의료 응급 상황에 빠르게 대처할 수 있는 의료 정보 서비스 운용을 위하여 F2C 기반 IoT 스마트 헬스 모니터링 시스템 아키텍쳐를 설계하였다. 또한, 서비스 상호운용 시 사용자의 개인 건강 정보 및 센서 정보에 대한 보안을 강화하기 위하여 역할 기반 서비스 접근 제어 기술을 제안하였다. 시뮬레이션을 통하여, 블록체인을 통한 역할 등록 및 사용자 역할 토큰 발행 정보를 공유하여, 역할 기반 접근 제어가 이루어짐을 보였다. 최종 사용자는 가장 응답 시간이 빠른 장치로부터 서비스를 받을 수 있으며, 역할에 따른 서비스 접근 제어를 수행함으로써, 데이터에 대한 직접적인 접근을 최소화하고, 개인정보에 대한 보안성을 강화할 수 있다.

• 대한의용생체공학회:의공학회지
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• 제5권1호
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• pp.85-92
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• 1984

A new architecture of the Digital Scan Converter (DSC) for the linear-scan ultrasound medical imaging systems is proposed and its hardware implementation is reported. While the conventional DSC merely displays the acquisited data and does nor allow access to the frame memory, it is possible, in the new system, to access to the frame memory for further imaging processing so as to obtain useful information for medical diagnosis. Image processing can be performed either by a special pupose processor, or by VAX 11/780. The system is made to operate asyncronously to increase the frame rate with tags assigned to the data. The proposed DSC was designed to be used without much modification for the sector scan system as well.

• 한국응급구조학회지
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• 제25권2호
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• pp.19-38
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• 2021

Purpose: This study aimed to investigate the relationship between emergency medical service accessibility in different regions and the sudden death rate in elderly patients with ischemic heart disease using data analysis techniques and suggest improvements in regional emergency medical services. Methods: The study collected data from the NEDIS database and Statistics Korea. Data on a total of 75,867 patients aged ≥65 years were reviewed among patients with ischemic heart disease who visited emergency medical institutions in 2018. Frequency analysis, chi-square test, multiple logistic regression analysis, and simple logistic regression analysis were performed using SPSS PC Window 25.0. Results: With an emergency medical resource per 100km², there was a concomitant reduction in the risk of death. There was a decrease in the death rate by 0.967, 0.970, 0.997, and 0.391 times with the increase in the presence of a fire department, an ambulance, a paramedic, and a regional medical center, respectively. Furthermore, a decrement in the death rate was witnessed 0.844, 0.825, and 0.975 times with the initiation of a local emergency medical center, a local emergency medical institution, and an angiography device, respectively(p <.001). Conclusion: To improve the accessibility of emergency medical services, the population and geometric area of the region should be considered essential factors when deploying emergency medical resources.

• Genomics & Informatics
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• 제14권1호
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• pp.20-28
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• 2016

Internet addiction (IA) has become a widespread and problematic phenomenon as smart devices pervade society. Moreover, internet gaming disorder leads to increases in social expenditures for both individuals and nations alike. Although the prevention and treatment of IA are getting more important, the diagnosis of IA remains problematic. Understanding the neurobiological mechanism of behavioral addictions is essential for the development of specific and effective treatments. Although there are many databases related to other addictions, a database for IA has not been developed yet. In addition, bioinformatics databases, especially genetic databases, require a high level of security and should be designed based on medical information standards. In this respect, our study proposes the OAuth standard protocol for database access authorization. The proposed IA Bioinformatics (IABio) database system is based on internet user authentication, which is a guideline for medical information standards, and uses OAuth 2.0 for access control technology. This study designed and developed the system requirements and configuration. The OAuth 2.0 protocol is expected to establish the security of personal medical information and be applied to genomic research on IA.

• Archives of Plastic Surgery
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• 제39권3호
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• pp.216-221
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• 2012

Background : Nipple-sparing mastectomy (NSM) is gaining popularity due to its superior aesthetic results. When reconstructing the breast with free abdominal tissue transfer, we must readdress the recipient vessel, because NSM can cause difficulty in access to the chest vessel. Methods : Between June 2006 and March 2011, a total of 92 women underwent NSM with free abdominal tissue transfer. A lateral oblique incision was used for the nipple-sparing mastectomy. For recipient vessels, the internal mammary vessels were chosen if the mastectomy flap did not block access to the vessels. If it did, the thoracodorsal vessels were used. Age, degree of breast ptosis, weight of the mastectomy specimen, and related complications of the internal mammary vessel group and the thoracodorsal vessel group were compared. Results : Thoracodorsal vessels were used as recipient vessels in 59 cases, and internal mammary vessels in 33 cases including 4 cases with perforators of the internal mammary vessels. Breast reconstruction was successful in all cases except one case involving a total flap failure, which was replaced by a silicone gel implant. The internal mammary group and the thoracodorsal group were similar in terms of age, height, breast weight, and degree of ptosis. The flap related complications such as flap loss and take-back operation rates were not significantly different between the two groups. The rate of nipple necrosis was higher in the internal mammary group. Conclusions : The thoracodorsal vessels could produce comparable outcomes in breast reconstruction after nipple-sparing mastectomies. If access to internal mammary vessels is difficult, the thoracodorsal vessel can be a better choice.

• Journal of Dental Anesthesia and Pain Medicine
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• 제21권5호
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• pp.441-449
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• 2021

Background: The efficacy of local anesthesia decreases in patients with symptomatic irreversible pulpitis. Therefore, it was proposed that the use of premedication with an anti-inflammatory drug might increase the success rate of pulpal anesthesia in mandibular posterior teeth with vital inflamed pulp. Methods: One hundred thirty-four patients who were actively experiencing pain willingly participated in this study. The Heft Parker (HP) visual analog scale (VAS) was used to record the initial pain intensity. Patients were randomly allocated to receive a placebo, 10 mg of ketorolac, and 650 mg of paracetamol. The standard inferior alveolar nerve block (IANB) was administered to all patients using 2% lidocaine with 1:200,000 adrenaline after one hour of medication. After 15 min, the patient was instructed to rate the discomfort during each step of the treatment procedure, such as access to remaining dentin, access to the pulp chamber, and during canal instrumentation on the HP VAS. IANB was considered successful if the patient reported no or mild pain during access preparation and instrumentation. Moderate or severe pain was classified as a failure of IANB and another method of anesthesia was used before continuing the treatment. Results: The rate of successful anesthesia in the placebo, paracetamol, and ketorolac groups was 29%, 33%, and 43%, respectively, and no statistically significant difference was found between the groups. Conclusion: Preoperative administration of paracetamol or ketorolac did not significantly affect the success rate of IANB in patients with irreversible pulpitis. No significant difference was observed between the paracetamol and ketorolac groups.

• 인터넷정보학회논문지
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• 제23권3호
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• pp.87-95
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• 2022

최근 스마트기술의 발달로 의료정보플랫폼에서 환자의 생체데이터가 실시간으로 측정 및 데이터베이스에 축적되며, 환자의 응급상황을 판단할 수 있다. 또한, 의료진은 이동단말기를 이용하여 간단한 인증 이후 환자정보에 쉽게 접근이 가능하다. 그러나 이동단말기를 이용한 의료정보 접근에 있어 환자상황과 이동단말기를 고려한 인증에 대한 연구가 필요하다. 본 논문에서는 응급상황에서 의료진의 이동단말기를 이용한 의료정보 접근허가를 위해 빅데이터 처리 및 에지컴퓨팅 기반의 자동인증지원 의료정보플랫폼에 대해 연구하였다. 기 연구된 자동인증 시스템은 응급상황에서 사용자인증과 이동단말기인증을 동시에 수행하며, 상위 의료정보 접근권한을 인증된 의료진과 이동단말기에 부여하는 인증 시스템이다. 환자의 고혈압, 당뇨와 같은 환자상태를 고려한 응급상황을 판단하기 위해 빅데이터 처리 및 분석기법을 제안한 플랫폼에 적용하였다. 또한 환자의 빠른 응급상황 판단을 위해 에지컴퓨팅을 의료정보 서버 앞단에 두어 의료정보 서버 대신 에지컴퓨팅에서 응급상황을 판단하도록 하였다. 의료정보 서버는 입력된 환자정보와 축적된 생체데이터를 이용하여 응급상황 판단수치를 도출하고, 에지컴퓨팅에 전달하여 환자 맞춤형 응급상황을 판단하도록 하였다. 결론적으로, 제안한 의료정보플랫폼은 빅데이터 처리와 에지컴퓨팅을 통해 환자상태를 고려하고 응급상황을 빠르게 판단하였으며, 자동인증을 통해 응급상황에서의 신속한 인증과, 환자상황과 의료진의 역할에 따른 접근권한 부여를 통해 환자정보를 보호하였다.

• 대한의용생체공학회:의공학회지
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• 제9권1호
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• pp.131-134
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• 1988

In this paper, MIIS (Medical Image Information System) has been designed and implemented using INGRES RDBMS, which is based on a client/server architecture. The implemented system allows users to register and retrieve patient information, medical images and diagnostic reports. It also provides the function to display these information on workstation windows simultaneously by using the designed menu-driven graphic user interface. The medical image compression/decompression techniques are implemented and integrated into the medical image database system for the efficient data storage and the fast access through the network.

• Genomics & Informatics
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• 제17권2호
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• pp.16.1-16.4
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• 2019

Medical Subject Headings (MeSH), a medical thesaurus created by the National Library of Medicine (NLM), is a useful resource for natural language processing (NLP). In this article, the current status of the Japanese version of Medical Subject Headings (MeSH) is reviewed. Online investigation found that Japanese-English dictionaries, which assign MeSH information to applicable terms, but use them for NLP, were found to be difficult to access, due to license restrictions. Here, we investigate an open-source Japanese-English glossary as an alternative method for assigning MeSH IDs to Japanese terms, to obtain preliminary data for NLP proof-of-concept.

• 한국통신학회논문지
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• 제37권4C호
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• pp.297-306
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• 2012

최근 유헬스케어 시스템은 IT 기술과 의료서비스가 접목되면서 사용 범위가 점점 넓어지고 있다. 그러나 유헬스케어 시스템 중 체내삽입형 장치를 사용하는 환자의 경우, 환자의 프라이버시 예방과 안전한 접근 제어에 대한 대비책이 마련되어 있지 않아 그에 따른 프라이버시 보호 문제가 대두되고 있다. 본 논문에서는 체내삽입형 장치를 사용한 환자의 프라이버시를 보장하기 위해서 환자 정보를 가상화한 후 환자의 상태값과 수행값을 동기화함으로써 제3자의 불법적 접근을 예방할 수 있는 환자 프라이버시 보호 프로토콜을 제안한다. 제안된 프라이버시 보호 프로토콜은 사전에 관리 서버에 등록된 병원(의사, 간호사, 약국 등)의 권한정보에 따라 체내삽입형 장치를 부착한 환자의 개인정보의 열람범위를 제한하여 병원관계자의 불법적 업무 수행을 예방한다. 특히, 체내삽입형 장치와 게이트웨이 역할을 하는 가상장치는 접근 허가가 승인된 환자 정보 이외에 허가받지 않은 정보에 대해서 제 3자가 쉽게 접근하지 못하도록 환자의 상태값과 수행값을 동기화함으로써 환자의 프라이버시 관리의 효율성을 향상시키고 있다.