• Title/Summary/Keyword: 의료선

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A Boundary Extraction Method Based on Active Contour Model and Dynamic Programming (능동 윤곽선 모델을 이용한 경계선 추출과 다이나믹 프로그래밍)

  • 김령주;김영철;최흥국
    • Proceedings of the Korea Multimedia Society Conference
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    • 2002.05c
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    • pp.282-285
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    • 2002
  • 의료영상에서 윤곽선의 추출은 관심영역 대한 객관적인 수치 즉 면적, 부피, 장단축의 길이 등을 분석하고 3차원 재구성을 위해 선행되어야 하는 중요한 과정이다. 현재 윤곽선 추출에 대한 않은 방법들이 개발 중에 있으나 이 방법들은 한계를 지니고 있어 더 높은 수준의 처리가 요구된다. 본 논문에서는 active contour model(snake)을 이용하여 MR뇌 영상에서 종양을 추출하였다. Snake의 에너지 최적화 문제를 dynamic programming을 사용하여 개선하였으며 canny edge detection을 이용하여 잡음에 덜 민감하도록 하였다.

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A Study on the Legislation of Telemedicine in France (프랑스 원격의료 법제에 관한 고찰)

  • JUNG, Kwanseon
    • The Korean Society of Law and Medicine
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    • v.23 no.2
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    • pp.141-169
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    • 2022
  • Article 34 of 'Medical Service Act' of Korea provides telemedicine service between medical personnel. Telemedicine between medical personnel and patients, therefor, in principle, is not recongnized. Increasing demand for telemedicine fueled by COVID-19 pandemic and accumulation of telemedicine experience lead a change in stubborn opposition of the medical community, tenuous though it may be. This article focuses on the telemedicine legislation in France, which can be used as a reference for the telemedicine legislation premised on telemedicine between medical personnel and patients. The legislation stipulates the concept, types, and conditions of telemedicine performance through 'Code de la santé publique'. The principle that telemedicine shall be performed alternately with direct medical treatment to a patient and details relating to such telemedicine performance as telemedicine costs, medical fees, and telemedicine equipment support are stipulated through an agreement between the medical community and health insurance organizations. From this point, the implications for our legal system were presented.

원격의료 정보시스템의 바이오 인증 융합기술

  • Hwang, Yu-Dong;Lee, You-Ri;Park, Dong-Gue;Shin, Yong-Nyuo;Kim, Ja-Son
    • Review of KIISC
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    • v.17 no.5
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    • pp.32-39
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    • 2007
  • 언제 어디서나 예방, 진단, 치료, 사후 관리의 보건 의료 서비스를 제공하는 Ubiquitous-Healthcar(U-HC)는 최근 초보적인 단계로 IT기술과 의료 시스템이 결합된 원격 또는 재택 진료 시스템이 선을 보이고 있다. 하지만 원격 의료 시스템의 개인 신상 및 바이오 유출은 환자의 프라이버시 침해의 가능성을 내포하고 있다. 따라서 본고에서는 원격 의료 정보 시스템의 인증을 강화하기 위하여 Telebiometrics X.tsm과 X.tai 표준을 기반으로 하는 바이오 인식 기반 원격의료 정보 시스템의 사용자 인증 모델의 예를 제시하고 Telebiometrics의 X.tpp를 기반으로 시스템에서 발생 할 수 있는 취약성 및 위협을 분석한다.

The MTF Measurement of the Conventional X-ray System by using the Computed Radiography (CR을 이용한 일반촬영장치의 MTF 측정)

  • Kim, Chang-Bok
    • Journal of radiological science and technology
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    • v.28 no.2
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    • pp.111-115
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    • 2005
  • The quality of image from the system that creates medical images by using X-ray depends on the various different reasons such as the X-ray generator, the subject and the image transmission medium. In other words, thereare various factors existing that can influence on the quality of image from the moment when the X-ray is generated and until the final image is created. Therefore, the operator who creates images at the clinical site should make continuous evaluation and observation from the final image. There are various methods of evaluating the medical images, but it is assumed that the MTF measurement method can be suitable for measuring actual or effective resolution. So in this study, the MTF measurement method by using X-ray film has been avoided and the MTF features according to the deterioration of the X-ray system have been measured by using the software (the program used Borland C++ builder software and LEAD tools software) that can measure the MTF of the digital medical images. As the result of this measurement, it has been found out through the MTF graph that the resolution and sharpness from the old x-ray generator with a many years of using and many numbers of times of using were deteriorated for the quality of image comparing to those from the new system. Also a simple and easy measurement method for the MTF from the digital medical images can be obtained in this study.

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A CORBA-Based Collaborative Work Supported Medical Image Analysis and Visualization System (코바기반 협업지원 의료영상 분석 및 가시화 시스템)

  • Chun, Jun-Chul;Son, Jae-Gi
    • The KIPS Transactions:PartD
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    • v.10D no.1
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    • pp.109-116
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    • 2003
  • In this paper, a CORBA-based collaborative medical image analysis and visualization system, which provides high accessibility and usability of the system for the users on distributed environment is introduced. The system allows us to manage datasets and manipulates medical images such as segmentation and volume visualization of computed geometry from biomedical images in distributed environments. Using Bayesian classification technique and an active contour model the system provides classification results of medical images or boundary information of specific tissue. Based on such information, the system can create real time 3D volume model from medical imagery. Moreover, the developed system supports collaborative work among multiple users using broadcasting and synchronization mechanisms. Since the system is developed using Java and CORBA, which provide distributed programming, the remote clients can access server objects via method invocation, without knowing where the distributed objects reside or what operating system it executes on.