• Proceedings of the Korean Society of Medical Physics Conference
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• 2004.11a
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• pp.108-112
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• 2004

현재 많은 병원의 핵의학과에서 핵의학 장비를 이용하여 많은 수의 핵의학영상을 생성하고 있다. 생성된 핵의학영상은 환자의 질병을 진단 또는 치료하기 위해 기능적 정보를 많이 포함하고 있다. 하지만 이렇게 중요한 기능적 정보가 현재의 PACS 에서는 그 중요한 기능적 정보를 모두 표현하지 못 하는 문제점이 있다. DICOM 에서는 핵의학 영상 및 데이터에 대하여 표준을 정해놓고 그 표준을 따르도록 규정하고 있다. 이러한 DICOM 3.0 표준에서 핵의학 영상 및 데이터에 대하여 표준을 정해놓은 일은 비교적 최근의 일이어서 많은 수의 핵의학 영상 장비나 PACS에서는 핵의학영상에 대한 특징이 반영되지 않고 있는 실정이다. 이에 핵의학 영상의 호환성을 향상과 PACS와 핵의학 장비간의 호환성을 향상시키기 위하여 DICOM 3.0 Part 3에 정의된 IOD 중 꼭 필요하다고 생각되는 최소한의 Tag들을 선별하여 Guideline을 작성하여 DICOM 영상을 Guideline의 내용을 토대로 분석하였고 핵의학 영상이 PACS에서 제대로 활용되지 못 하는 원인을 분석 하였다.

• Journal of Biomedical Engineering Research
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• v.23 no.6
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• pp.431-436
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• 2002

The purpose of this study was to develop an integration protocol of Nuclear Medicine image with a commercial PACS. Two independent local networks. PACS network and Nuclear Medicine network, were connected using a Nuclear Medicine DICOM gateway A DICOM converter Program was developed to convert Interfile 3.3. which is used in nuclear medicine scanners in our hospital. to DICOM 3.0. The Program converts Interfile format images to those of DICOM format and also transfers converted DICOM files to PACS DICOM gateway. PACS DICOM gateway compares and matches the DICOM image information with patient information in Hospital Information System and then saves to PACS database. The transfer protocol was designed to be able to transfer Interfile. screen dumped file. and also scanned file. We successfully transferred Nuclear Medicine images to PACS. Images transferred by Interfile transfer protocol could be further processed using various tools in PACS. The graphs, numerical information and comments could be conveniently transferred by screen dumped file. The image in a hard copy can be transferred after scanning using an ordinary scanner. The developed protocol can easily transfer Nuclear Medicine images to PACS in various forms with low cost.

• The Korean Journal of Nuclear Medicine Technology
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• v.23 no.1
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• pp.15-28
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• 2019

Purpose Nuclear medicine was initially introduced in Korea in 1969 and widely applied to treat hyperthyroidism with $^{131}I$. Also, gamma camera was adopted in 1969 in the first place and its application has been growing continually in many ways. We analyzed long-term trend in nuclear medicine examinations for the last 2 decades. The purpose of this paper is to make predictions and to set both plans and directions on the development of nuclear medicine. Materials and Methods We analyzed the performance of nuclear medicine examinations and therapies performed in Asan Medical Center from 1998 to 2017. Results Results from the last 20 years regarding Bone scan, Renal scan, MUGA scan and $^{18}F$-FPCIT, Bone Mineral Density were on a increase. And Myocardium perfusion SPECT, Thyroid scan, Lung scan were on a decrease while $^{18}F-FDG$ PET maintained on a steady course. Until 2010 there was a positive performance with the therapy but after the excessive medical care in thyroid examination performance is at status quo. Key events such as a medical strike(2000), Middle-East Respiratory Syndrome (2015) influenced the overall performance of the therapy. Conclusion In order to promote a long-term growth in nuclear medicine examination and therapy, it is inevitable to respond to the changes in current medical environment. Furthermore, it is strongly suggested to put efforts to maintain and develop new examinations and clinical indicators.

• The Korean Journal of Nuclear Medicine
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• v.31 no.4
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• pp.459-463
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• 1997

핵의학적 유방영상법은 오랜동안 시범되어 왔지만 임상에서 큰 역할을 못했고, 근래에 핵의약품과 핵의학기기 사용방법의 발전으로 scintimammogram(SM)이 다시 각광을 받게 되었다. 유방암 진단에 대한 핵의학영상법의 특이도와 예민도가 방사선 유방촬영법보다 높다고 보고되었으나 1cm보다 작은 유방암은 SM에 용이하게 발견되지 않는다. 본 보고에서는 1cm보다 작은 유방암이 발견된 두 증례를 발표한다. 한증례는 $^{99m}Tc$ MDP를 수술전 골영상을 위해서 사용하였고, 두 번째 증례는 비촉지 유방종괴를 $^{99m}Tc$ MIBI로 유방촬영 하였다.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2004.11a
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• pp.104-107
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• 2004

In this study, using brain phantom for multi-modality imaging, we acquired CT, MR and PET images and performed registration of these anatomical images and nuclear medicine functional images. The algorithms and program applied for registration were Chamfer Matching and Mutual Information Maximization algorithm which have been using frequently in clinic and verified accuracy respectively. In result, both algorithms were useful methods for CT-MR, CT-PET and MR-PET. But Mutual Information Maximization was more effective algorithm for low resolution image as nuclear medicine functional image.

• Journal of the Korean Society of Radiology
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• v.82 no.4
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• pp.838-850
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• 2021

The incidence and prevalence of nontuberculous mycobacterial pulmonary disease (NTM-PD) is increasing worldwide, including in Korea, and the clinical importance of NTM-PD is also rapidly increasing. The diagnosis and management of NTM-PD is difficult. Radiologic evidence is mandatory to diagnose NTM-PD, and the radiologic findings may be the first evidence of the disease in many patients. Traditionally, NTM-PD demonstrates two different radiologic forms: fibrocavitary and nodular bronchiectatic. However, the disease also shows non-specific and a wide spectrum of radiologic features. Radiologists must be aware of the radiologic features of NTM-PD and should include them in the differential diagnosis. This review focuses on the epidemiology in Korea, diagnostic criteria, and radiological features of NTM-PD for radiologists.

• The Magazine of the IEIE
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• v.44 no.3
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• pp.32-39
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• 2017

• Journal of the Korean Society of Radiology
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• v.8 no.3
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• pp.123-136
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• 2014

In this paper, we study to classify molecular imaging and applications to predict future. Molecular imaging in vivo at the cellular level and the molecular level changes taking place to be imaged, that is molecular cell biology and imaging technology combined with the development of the new field. Molecular imaging is used fluorescence, bioluminescence, SPECT, PET, MRI, Ultrasound and other imaging technologies. That is applied to monitoring of gene therapy, cell tracking and monitoring of cell therapy, antibody imaging, drug development, molecular interaction picture, the near-infrared fluorescence imaging of cancer using fluorescence, bacteria using tumor-targeting imaging, therapeutic early assessment, prediction and therapy. The future of molecular imaging would be developed through fused interdisciplinary research and mutual cooperation, which molecular cell biology, genetics, chemistry, physics, computer science, biomedical engineering, nuclear medicine, radiology, clinical medicine, etc. The advent of molecular imaging will be possible to early diagnosis and personalized treatment of disease in the future.

• Radioisotope journal
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• v.9 no.2
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• pp.42-54
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• 1994

• The Magazine of the IEIE
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• v.23 no.3
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• pp.62-74
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• 1996