• Title/Summary/Keyword: Medical image communication

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The Development of Vital Sign Web Viewer Systems using HL7 Protocol (HL7 프로토콜을 이용한 생체정보 웹 뷰어 시스템 개발)

  • Lim, Se-Jung;Kang, Ki-Woong;Seo, Jong-Joo;Kim, Gwang-Jun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.2 no.2
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    • pp.123-128
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    • 2007
  • HL7 is well-Known standard protocol for text data generated in hospital information systems. Vital sign information web viewer systems is also the standard protocol for medical image and transfer. In order to embrace new technologies as telemedicine service, it is important to develope the standard protocol between different systems in the hospital, as well as the communication with external hospital systems. In this paper, we proposed integration method between vital sign web viewr systems and hospital information systems. Through the proper data exchange and modification of information management, HIS will offer better workflow to all hospital employee.

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Developing Standard Transmission System for Radiology Reporting Including Key Images (Key Image를 포함한 방사선과 판독결과지 표준전송시스템 개발)

  • Kim, Seon-Chil
    • Journal of radiological science and technology
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    • v.30 no.1
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    • pp.47-51
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    • 2007
  • Development of hospital information system and Picture Archiving Communication System is not new in the medical field, and the development of internet and information technology are also universal. In the course of such development, however, it is hard to share medical information without a refined standard format. Especially in the department of radiology, the role of PACS has become very important in interchanging information with other disparate hospital information systems. A specific system needs to be developed that radiological reports are archived into a database efficiently. This includes sharing of medical images. A model is suggested in this study in which an internal system is developed where radiologists store necessary images and transmit them in the standard international clinical format, Clinical Document Architecture, and share the information with hospitals. CDA document generator was made to generate a new file format and separate the existing storage system from the new system. This was to ensure the access to required data in XML documents. The model presented in this study added a process where crucial images in reading are inserted in the CDA radiological report generator. Therefore, this study suggests a storage and transmission model for CDA documents, which is different from the existing DICOM SR. Radiological reports could be better shared, when the application function for inserting images and the analysis of standard clinical terms are completed.

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Web-based Medical Image Presentation (웹기반 의료영상 프레젠테이션)

  • 김동현;송승헌;김응곤
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.5
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    • pp.964-971
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    • 2003
  • According to the development of information processing technology and computer hardware, PACS systems have been installed in many hospitals. They can increase the efficiency and the convenience remarkably for handling medical images using digitalized data. After we compare the generation images with other cases, we can read the images correctly and decide how to treat the patients. If the results, included test method and specialist's opinion, are represented dynamically on homepage in hospital. then visitors can get their experience in directly and understand the field of examination and the area of medical treatment. In this thesis, we display the effective images such as MR of the abnormal cases according to parts and diseases, the movie and still images such as Angio image, the other multimedia materials such as the sound and text of doctor's opinions, in SMIL based on XML, concerning the problem of concurrency.

Current Status and Problems of PET/CT Data on CD for Inter-hospital Transfer (병원간 전송용 PET/CT 영상 CD자료의 현황 및 문제점)

  • Hyun, Seung-Hyup;Choi, Joon-Young;Lee, Su-Jin;Cho, Young-Seok;Lee, Ji-Young;Cheon, Mi-Ju;Cho, Suk-Kyong;Lee, Kyung-Han;Kim, Byung-Tae
    • Nuclear Medicine and Molecular Imaging
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    • v.43 no.2
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    • pp.137-142
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    • 2009
  • Purpose: This study was performed to find the current problems of positron emission tomography/computed tomography(PET/CT) data on CD for inter-hospital transfer. Materials and Methods: The subjects were 746 consecutive $^{18}F$-fluorodeoxyglucose PET/CT data CDs from 56 hospitals referred to our department for image interpretation. The formats and contents of PET/CT data CDs were reviewed and the email questionnaire survey about this was performed. Results: PET/CT data CDs from 21 of 56 hospitals(37.5%) included all transaxial CT and PET images with DICOM standard format which were required for authentic interpretation. PET/CT data from the others included only secondary capture images or fusion PET/CT images. According to this survey, the main reason of limited PET/CT data on CD for inter-hospital transfer was that the data volume of PET/CT was too large to upload to the Picture Archiving and Communication System. Conclusion: The majority of hospitals provided limited PET/CT data on CD for inter-hospital transfer, which could be inadequate for accurate interpretation and clinical decision making. It is necessary to standardize the format of PET/CT data on CD for inter-hospital transfer including all transaxial CT and PET images with DICOM standard format.

The Implementation of Real-Time Vital Sign Information Transmission Monitoring System using TMO (TMO를 이용한 실시간 생체정보 전송 모니터링 시스템 구현)

  • Lim, Se-Jung;Kim, Gwang-Jun
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.1 no.3
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    • pp.33-40
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    • 2008
  • The TMO may contain two types of methods, time-triggered methods(also called the spontaneous methods of SpMs) which are clearly separated from the conventional service methods (SvMs). The SpM executions are triggered upon design time whereas the SvM executions are triggered by service request message from clients. In this paper, we describes the application environment as the patient monitor telemedicine system with TMO structure. Vital sign information web viewer systems is also the standard protocol for medical image and transfer. In order to embrace new technologies as telemedicine service, it is important to develope the standard protocol between different systems in the hospital, as well as the communication with external hospital systems. It is able to apply to remote medical examination and treatment. Through the proper data exchange and management of patient vital sign information, real time vital sign information management will offer better workflow to all hospital employee.

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Design and Implementation of the System for Automatic Classification of Blood Cell By Image Analysis (영상분석을 통한 혈구자동분류 시스템의 설계 및 구현)

  • Kim, Kyung-Su;Kim, Pan-Koo
    • Journal of the Korean Institute of Telematics and Electronics C
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    • v.36C no.12
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    • pp.90-97
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    • 1999
  • Recently, there have been many researches to automate processing and analysing image data in medical field, due to the advance of image processing techniques, the fast communication network and high performance hardware. In this paper, we design and implement the system based on the multi-layer neural network model to be able to analyze, differentiate and count blood cells in the peripheral blood image. To do these, we segment red and white-blood cell in blood image acquired from microscope with CCD(Charge-coupled device) camera and then apply the various feature extraction algorithms to classify. In addition to, we reduce multi-variate feature number using PCA(Principle Component Analysis) to construct more efficient classifier. So, in this paper, we are sure that the proposed system can be applied to a pathological guided system.

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A Design of Single Pixel Photon Counter for Digital X-ray Image Sensor (X-ray 이미지 센서용 싱글 픽셀 포톤 카운터 설계)

  • Baek, Seung-Myun;Kim, Tae-Ho;Kang, Hyung-Geun;Jeon, Sung-Chae;Jin, Seung-Oh;Huh, Young;Ha, Pan-Bong;Park, Mu-Hun;Kim, Young-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.2
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    • pp.322-329
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    • 2007
  • A single pixel photon counting type image sensor which is applicable for medical diagnosis with digitally obtained image and industrial purpose has been designed with $0.18{\mu}m$ triple-well CMOS process. The designed single pixel for readout chip is able to be operated by single supply voltage to simplify digital X-ray image sensor module and a preamplifier which is consist of folded cascode CMOS operational amplifier has been designed to enlarge signal voltage(${\Delta}Vs$), the output voltage of preamplifier. And an externally tunable threshold voltage generator circuit which generates threshold voltage in the readout chip has been newly proposed against the conventional external threshold voltage supply. In addition, A dark current compensation circuit for reducing dark current noise from photo diode is proposed and 15bit LFSR(Linear Feedback Shift Resister) Counter which is able to have high counting frequency and small layout area is designed.

Development of High Resolution Iris Camera Module using IoT Device (IoT 디바이스를 활용한 고해상도 홍채 카메라 모듈 개발)

  • Seo, Jin-beom;Cho, Young-bok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.24 no.3
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    • pp.371-377
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    • 2020
  • Currently used iris cameras are expensive and have many limitations in their use. Existing iris cameras are inconvenient in interworking with newly developed software, and light reflections generated during iris photography are inadequate for medical use. Therefore, it is impossible to utilize the existing camera to take an image by yourself. In this paper, the iris camera is newly constructed so that the iris can be photographed by ourselves and the area of interest can be seen well. Anyone can easily wear glasses-type iris cameras to acquire images using IoT devices, and the acquired images are linked to the iris analysis program and used to read genetic weak parts. The proposed iris camera module automatically provides light reflection, shake, and accurate focus when capturing images, increasing the accuracy of image analysis to 91.49%. In addition, we have proved through experiments that one image processing time is fast as 0.007ms due to accurate image input.

Medical Image Compression Using JPEG International Standard (JPEG 표준안을 이용한 의료 영상 압축)

  • Ahn, Chang-Beom;Han, Sang-Woo;Kim, Il-Yoen
    • Proceedings of the KIEE Conference
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    • 1993.07a
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    • pp.504-506
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    • 1993
  • The Joint Photographic Experts Group (JPEG) standard was proposed by the International Standardization Organization (ISO/SC 29/WG 10) and the CCITT SG VIII as an international standard for digital continuous-tone still image compression. The JPEG standard has been widely accepted in electronic imaging, computer graphics, and multi-media applications, however, due to the lossy character of the JPEG compression its application in the field of medical imaging has been limited. In this paper, the JPEG standard was applied to a series of head sections of magnetic resonance (MR) images (256 gray levels, $256{\times}256$ size) and its performance was investigated. For this purpose, DCT-based sequential mode of the JPEG standard was implemented using the CL550 compression chip and progressive and lossless coding was implemented by software without additional hardware. From the experiment, it appears that the compression ratio of about 10 to 20 was obtained for the MR images without noticeable distortion. It is also noted that the error signal between the reconstructed image by the JPEG and the original image was nearly random noise without causing any special-pattern-related artifact. Although the coding efficiency of the progressive and hierarchical coding is identical to that of the sequential coding in compression ratio and SNR, it has useful features In fast search of patient Image from huge image data base and in remote diagnosis through slow public communication channel.

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Three-Dimensional Printed Model of Partial Anomalous Pulmonary Venous Return with Biatrial Connection (양측 심방 연결을 형성하는 부분 폐정맥 환류 이상의 3D 프린팅 모델)

  • Myoung Kyoung Kim;Sung Mok Kim;Eun Kyoung Kim;Sung-A Chang;Tae-Gook Jun;Yeon Hyeon Choe
    • Journal of the Korean Society of Radiology
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    • v.81 no.6
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    • pp.1523-1528
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    • 2020
  • Partial anomalous pulmonary venous return (PAPVR) is a rare congenital cardiac anomaly that can be difficult to detect and often remains undiagnosed. PAPVR is diagnosed using non-invasive imaging techniques such as echocardiography, CT, and MRI. Image data are reviewed on a 2-dimensional (D) monitor, which may not facilitate a good understanding of the complex 3D heart structure. In recent years, 3D printing technology, which allows the creation of physical cardiac models using source image datasets obtained from cardiac CT or MRI, has been increasingly used in the medical field. We report a case involving a 3D-printed model of PAPVR with a biatrial connection. This model demonstrated separate drainages of the right upper and middle pulmonary veins into the lower superior vena cava (SVC) and the junction between the SVC and the right atrium, respectively, with biatrial communication through the right middle pulmonary vein.