• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.361-362
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• 2015

사물인터넷(IoT)이 활성화되면 환자의 정보를 PC뿐만 아니라 스마트폰 등 모바일 기기를 통해 확보할 수 있게 돼 지금보다 방대하고 상세한 정보가 클라우드에 저장되고, 이들 데이터를 활용하면 결과적으로 의료 및 헬스케어 서비스 향상에 기여할 것으로 예상된다. 이러한 면에서 PACS 시스템 또한 핸드폰과 무선망의 보급이 보편화되면서 사용자가 이동 중 또는 병원이 아닌 외부에서 무선통신망을 이용하여 의료영상을 조회하고자 하는 요구가 급속히 늘어나고 있다. 이에 본 논문은 IOT 기반의 모바일 PACS 플랫폼을 개발하여 스마트폰을 사용하는 의사와 환자가 원하는 의료영상을 쉽게 저장 검색 조회 전송할 수 있는 시스템을 설계하였다.

• Journal of the Korea Society of Computer and Information
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• v.10 no.3 s.35
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• pp.331-337
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• 2005

'Supplement 23:DICOM SR' announced on April 2000 made possible co-relations between the clinical reports and human body parts by standardizing the exchange of clinical information. DICOM SR uses its own coding schemes and values to represent information, which convey hierarchically structured content items. This paper analyzes radiology reports produced in HIS(Hospital Information System) and categorizes content structures into three parts such as, finding, conclusion, and recommendation, and implements a system which can be used by clinicians. Digital X-ray images and their reports have been managed separately. Since the report made by DICOM SR can refer to images, the integrated information of reports and images is possible.

• The Transactions of the Korea Information Processing Society
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• v.5 no.12
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• pp.3275-3284
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• 1998

In this paper, we deseribe a Medical Image Information System. Our system stores and manages 5 dimensional medical image data and provides the 3 dimensional medical data via the Internet. The Internet standard VR format. VRML(Virtual Reality Modeling Language) is used to represent the 3I) medical image data. The 3D images are reconstructed from medical image data which are enerated by medical imaging systems such ans CT(Computerized Tomography). MRI(Magnetic Resonance Imaging). PET(Positron Emission Tomograph), SPECT(Single Photon Emission Compated Tomography). We implemented the medical image information system shich rses a surface-based rendering method for the econstruction of 3D images from 2D medical image data. In order to reduce the size of image files to be transfered via the Internet. The system can reduce more than 50% for the triangles which represent the surfaces of the generated 3D medical images. When we compress the 3D image file, the size of the file can be redued more than 80%. The users can promptly retrieve 3D medical image data through the Internet and view the 3D medical images without a graphical acceleration card, because the images are represented in VRML. The image data are generated by various types of medical imaging systems such as CT, MRI, PET, and SPECT. Our system can display those different types of medical images in the 2D and the 3D formats. The patient information and the diagnostic information are also provided by the system. The system can be used to implement the "Tele medicaine" systems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.299-300
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• 2013

의료시장의 무한경쟁과 의료 경영환경을 극복하기 위한 최선의 방안은 병원 업무의 전산화를 통한 시스템 간의 효율적인 정보교환의 필요성이 대두되고 있다. 또한, 처방전달시스템, 전자의무기록시스템, 검사정보시스템, 의료영상 저장 및 전송시스템 등의 이기종간 의료정보 시스템의 통합 시스템을 구축하여 진료환경을 구축하고 진료의 효율성을 개선해야 할 것이다. 본 논문에서는 업무 시스템 간에 상호 연계가 보장된 표준정보연계체계 구축 및 최적화된 응용시스템 구축으로 환자 서비스 개선과 진료 및 경영 효율을 증대시킨 통합의료정보시스템의 구축방안에 대하여 연구하였다.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.3236-3237
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• 2000

본 논문에서는 의료 영상분야에서 많이 활용되고 있는 기존의 영상 획득,저장 및 전송 시스템(PACS)에 스테레오 내시경 영상이 추가될 수 있도록 기존의 PACS에 스테레오 기능의 관찰(viewing) 시스템을 추가하였으며 기본 기능으로 1) 3차원 스테레오 좌,우 독립 영상의 선택과 합성 2) 기존의 합성된 스테레오 영상의 선택이 가능하도록 하였으며 3) 스테레오 영상의 Dicom 표준이 없는 상황을 고려하여 기본적인 카메라 관련 사항(카메라 사양, 초점 거리, 베이스라인 등)을 입력할 수 있는 기록 필드를 삽입하였다. 또한 임상적으로 수용 가능한 3차원 스테레오 영상의 PACS내 효율적 저장법을 제시하기 위하여 의료 영상에 많이 활용되는 JPEG과 Wavelet 압축법을 각각 이용하여 3차원 좌,우 독립영상과 복합 영상의 효율적 압축비를 PSNR을 중심으로 비교하였다.

• Journal of the Korean Society of Radiology
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• v.8 no.1
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• pp.43-49
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• 2014

PACS is needed medical imaging with large-capacity storage device. Slower transmission degrades the performance of the PACS. Thus, the image read by the reading of the long-term stored image without compromising the quality of the video, which does not affect future readings in the range will be compressed and stored. Compression and video storage, and video transport Noise generated during storage and transmission of medical images and the resulting loss of information that occurs when the monitor output from many problems. The study estimates server display monitor and client display monitor of philips DSA system, and suggests that the evaluation and improvement about PSNR, process from server display signal obtaining to client display monitor. P company DSA is used in the test. Two monitors that are $1280{\times}1024$ pixel monitor of P company and 1536x2048 pixel monitor of Wide are used displaying angiography picture. MARO-view is taken in PACS program, and Visual $C^{++}$ is taken as accomplishing PSNR measurement program. As a result of experiment, no change in No 1, 3 of PSNR appear that there is no error in telephotograph and display. In terms of compressibility, low compressibility has small change of definition, and there was not remarkable drawback of compressibility which has little change in definition.

• Journal of Radiation Protection and Research
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• v.37 no.1
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• pp.25-34
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• 2012

To know which parameters were acceptable for achieving lowest radiation exposure to the patients and highest image quality at the diagnostic X-ray radiography, we measured the patient radiation dose and image quality in transmitted PACS (Picture Archiving and Communication System) at variable combinations of the added filters. As a result, the Dose Area Product (DAP: $mGy{\cdot}cm^2$) and Entrance Surface Doses (ESDs: $mGy$) was lowest at 1 mmAl + 0.2 mmCu and highest at 0 mmAl. The histogram of the image quality by transmitted PACS was not significantly different at variable combinations of exposure parameters on the MATLAB. In conclusion, this study can be helpful for expecting radiation dose-exposure and control exposure parameters for the diagnostic X-ray radiography.

• The Journal of the Korea Contents Association
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• v.9 no.4
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• pp.247-253
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• 2009

PACS(Picture archiving communication system) is a system that enables medical images such as X -ray, CT, MRI, PET to be stored electronically viewed on computer screens so that doctors and other authorized people can access search the information as needed. But if they are not in hospital area for example on holiday or at night, that are not able to access the PACS system instantly. We have to solve this problem for more efficient patient care. So we try to suggest a method that use the PDA system that wireless LAN and CDMA cellular phone are equipped. This system may help to access easier to PACS system regardless of the location and can also attribute the development of telemedicne.

• Journal of Korea Multimedia Society
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• v.7 no.9
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• pp.1321-1328
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• 2004

In this article, we present a new DICOM object able to create image-based annotations in DICOM image. Since the proposed image-based annotation uses images themselves of annotation, various types like character, sketch, and scanning image, etc., can be imported into annotation easily. The proposed annotation is inserted into DICOM image directly but they do not influence original DICOM image quality by using independent data channel. The proposed annotation is expected to be very useful to medium and small clinics that cannot afford picture archiving and communication systems or electronic medical record.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.497-504
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• 2012

The purpose of the study was to present basic data of curriculum of PACS (Picture Archiving and Communication System) and to propose improved directions. To research clinical PACS education needs, radiological technologist who related on PACS was surveyed in 12 (55%) of capital area, 6 (27%) of middle area and 4 (18%) of southern area of Korea and for the medical institutes, 8 (36%) of over 1000 beds, 10 (45%) of 500 to 1000 beds and 4 (19%) of less 500 beds. And, to research the status of university education the survey was conducted in 6 of capital area, 6 of middle area and 6 of southern area. As a result, 95.5% of respondents in radiological technologist group thought that giving precede education for PACS and enlarging state-exam would be necessary. In university group, 78% of respondents answered that PACS was equipped and, 82% of them answered that it is very important to study PACS as major. Many universities, however, did not standardize major title and contents so a study about them needs to be followed up.