• The Korean Journal of Nuclear Medicine
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• v.19 no.1
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• pp.73-75
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• 1985

Acute transient synovitis of the hip presents clinically pain and limping. But in the majority of the cases, definite positive findings are not manifest in roentgenogram in its early phase. However radionuclide bone imaging combines with the assessment of vascularization and bone tracer uptake is of great value in solving this diagnostic problem. The materials for this study consisted of 29 children with acute transient synovitis of the hip, characterized by symptoms and physical signs of an arthritis, negative X-ray findings and disappearance of all symptoms and signs within a short period of time. They were twenty males and 9 females and age ranged from 1 to 12 years. We took pelvic reontgenogram in AP and frog-leg views. After intravenous bolus injection of 10 to 15 mCi of $^{99m}Tc-methylene$ diphosphonate, 24 sequential image of the pelvis was taken at 2-second interval for blood flow study. The scintigrams were made using a gamma camera with high resolution parallel hole collimator. Blood pool imaging was obtained at 2 minutes after tracer administration. After 3 hours, static images were taken and then closeup image of the hip using pin-hole collimator was followed. The results were as follows: 1) Bone scintigram was much more sensitive than conventional roentgenogram in diagnosis of acute transient synovitis of the hip. 2) Three-phase imagings showed increased vascular activities in blood pool scintigrams in 96%. 3) Pin-hole imaging showed increased tracer uptake in the regional bones of the hip, par ticularly in the medial aspect of femoral head and acetabulum. 4) We confirmed that three-phase imaging reinforced with pin-hole technique were very useful in diagnose of acute transient synovitis of the hip.

• The Korean Journal of Nuclear Medicine
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• v.25 no.1
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• pp.81-86
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• 1991

Reflex sympathetic dystrophy syndrome (RSDS), known also as Sudeck's atrophy, is an uncommon disorder recognized by its distinctive symptom complex consisting of pain and tenderness, vasomotor instability, swelling, and dystrophic skin changes and radiologic changes. The present study has been carried out to prospectively establish scintigraphic diagnostic criteria for RSDS using three-phase radionuclide bone scintigraphy (TPBS). In addition, the usefulness in the evaluation of treatment of RSDS was assessed. Patients included were 6 men and 7 women with the age ranging from 25 to 63 years (average 47 years). Diagnosis was based on typical clinical symptoms and signs as described above. Associated clinical conditions in these patients were cerebral infarction (4 patients), lung cancer (2 patients), trauma (1 patient), lymphoma (1 patient), and unknown cause (5 patients). All patients showed diffuse radionuclide accumulation in juxtaarticular region on the delayed static image and 11 patients showed diffusely increased activities also on scintiangiogram and blood-pool image. Fillow-up TPBS after corticosteroid therapy in 4 patients revealed near normal return of abnormal radionuclide accumulations in the affected hand. TPBS is an useful test for the diagnosis of as well as the evaluation of the therapeutic effects of RSDS.

• The Korean Journal of Nuclear Medicine Technology
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• v.19 no.1
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• pp.67-71
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• 2015

Purpose At recently, we enter into the aging society and a age-related disease is increasing. Among that, prevalence of degenerative brain disease like Parkin's disease will be increased. So, many radiopharmaceuticals is developed to diagnosis early and to evaluate the performance of therapeutic drugs. Especially $^{18}F-DOPA$ which involved at dopamine synthesis and function of storage is widely used to the diagnosis of Parkinson's disease as well as brain tumors. in the study, we will evaluate the distribution pattern of $^{18}F-DOPA$ at the striatum by using dynamic study. Materials and Methods We used Biograph Truepoint(Siemens, Germany) as PET/CT scanner, injected a $^{18}F-DOPA$ ($600{\pm}30MBq$) to patient (4men, 6women. $67{\pm}11age$) who visited our hospital from June to September, started 95min dynamic study at same time. after finishing acquisition, we reconstructed PET data with 19 frame every 5 minutes, analysed a average counts at ROI's where set at both striatums, anterior putamen, posterior putamen Results Counts in the cerebellum as the background formed a plateau after 90 minutes from the highest out rapidly reduced to 15 minutes. Counts of anterior putamen and posterior gradually increased but formed a plateau after 60min. A count ratio of Striatum to cerebellum was continuously increased up to more than 95 minutes, A count ratios of an anterior putamen to posterior one formed a plateau after 85 minutes. Conclusion The dynamic acquisition can be possible to evaluate a distribution of the $^{18}F-DOPA$ in the striatum and the VOI analysis through a dynamic acquisition and a variety of patterns. Futhermore, to make a uniformed distribution and count ratio of striatum to cerebellum, a static acquisition will have to start 90minutes later after injection.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.20 no.2
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• pp.118-125
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• 2009

Bilateral vocal fold immobility (BVFI) is a challenging condition which may result from diverse etiologies including vocal fold paralysis, synkinesis, cricoarytenoid joint fixation, and interarytenoid scar. Most patients present with dyspnea and stridor, but sometimes with a breathy dysphonia. Careful history taking, laryngoscopic evaluation under general anesthesia or awaken status, laryngeal EMG, and imaging studies with CT and/or MRI are helpful for providing a precise diagnosis and planning appropriate managements. In children, congenital neurological disorder is one of the most common etiologies, and spontaneous recovery has been reported in more than 50% of cases. Therefore, observation for more than 6 months while securing the upper airway with tracheostomy if needed is a generally accepted rule before deciding any destructive procedure to be undertaken. In children with advanced posterior glottic stenosis, laryngotracheal reconstruction with rib cartilage graft should be considered. In contrast to children, BVFI most commonly occurs as sequalae of surgical complication in adults. Diverse static or dynamic procedures can be applied; posterior cordotomy, vocal fold lateralization, endoscopic or open arytenoidectomy, arytenoid abduction, and reinnervation, electrical laryngeal pacing, which need to be carefully selected according to each patient's needs and pathophysiology of BVFI.

• Journal of KIISE:Computer Systems and Theory
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• v.26 no.8
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• pp.1024-1030
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• 1999

IEEE 1149.1 바운다리스캔은 보드 수준에서 고장점검 및 진단을 위한 테스트 설계기술이다. 그러나, 바운다리스캔 제어기의 특성상 테스트 패턴의 주입에서 관측까지 2.5 TCK가 소요되므로, 연결선상의 지연고장을 점검할 수 없다. 본 논문에서는 UpdateDR 신호를 변경하여, 테스트 패턴 주입에서 관측까지 1 TCK가 소요되게 함으로써, 지연고장 점검을 가능하게 하는 기술을 소개한다. 나아가서, 정적인 고장점검을 위한 테스트 패턴을 개선해 지연고장 점검까지 가능하게 하는, N개의 net에 대한 2 log(n+2) 의 새로운 테스트패턴도 제안한다. 설계와 시뮬레이션을 통해 지연고장 점검이 가능함을 확인하였다.Abstract IEEE 1149.1 Boundary-Scan is a testable design technique for the detection and diagnosis of faults on a board. However, since it takes 2.5TCKs to observe data launched from an output boundary scan cell due to inherent characteristics of the TAP controller, it is impossible to test delay defects on the interconnect nets. This paper introduces a new technique that postpones the activation of UpdateDR signal by 1.5 TCKs while complying with IEEE 1149.1 standard. Furthermore we have developed 2 log(n+2) , where N is the number of nets, interconnect test patterns to test delay faults in addition to the static interconnect faults. The validness of our approach is verified through the design and simulation.

• The Journal of Korean Obstetrics and Gynecology
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• v.29 no.2
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• pp.29-46
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• 2016

Objectives : The aim of this study is development of questionnaire for pattern identification of infertility and analysis of infertility treatment trend in korean traditional medicine. Methods : Data was collected by survey papers from 19 professors of the society of korean obstetrics and gynecology. We surveyed on pattern identifications, symptoms and prescriptions of infertility treatment, diagnosis of ovulation and pregnancy, and duration of infertility treatment. Results : By analysis of survey papers, We choose Kidney yang deficiency, Kidney yin deficiency, Blood deficiency, Liver depression, Dampness-phlegm, Dampness-heat, Static blood pattern for infertility treatment. And 41 items of questionnaire were chosen. Conclusions : We developed the questionnaire for pattern identification of infertility. And further research is necessary for improvement reliabilities and validities of the questionnaire of infertility.

• Nuclear Engineering and Technology
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• v.47 no.2
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• pp.219-225
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• 2015

In this paper, a three-dimensional model for the dynamic analysis of a flywheel based on the finite element method is presented. The static structure analysis for the model provides stress and strain distribution cloud charts. The modal analysis provides the basis of dynamic analysis due to its ability to obtain the natural frequencies and the vibration-made vectors of the first 10 orders. The results show the main faults are attrition and cracks, while also indicating the locations and patterns of faults. The harmonic response simulation was performed to gain the vibration response of the flywheel under operation. In this paper, we present a Hilbert-Huang transform (HHT) algorithm for flywheel vibration analysis. The simulation indicated that the proposed flywheel vibration signal analysis method performs well, which means that the method can lay the foundation for the detection and diagnosis in a reactor main coolant pump.

• Journal of Korean Orthopaedic Sports Medicine
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• v.2 no.2
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• pp.119-126
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• 2003

The shoulder is a complex joint and, by virtue of having a large range of motion, is inherently unstable, relying on the surrounding soft tissue structures for stability. The bony joint consists of the glenoid, acromion, and humoral head, while the soft tissues include the glenoid labrum, the glenohumeral ligaments. and coracoacromial ligament as well as the muscles of the rotator cuff, the long head of the biceps, and the scapulothoracic muscles. Dysfunction in any one of these components can cause shoulder problems. The throwing motion involves a series of phases that stress to their limits the dynamic and static restraints of the glenohumeral and scapulothoracic joints. . Therefore, maintaining a balance of proper biomechanical forces is essential to avoiding shoulder injuries in throwing athletes. Over the last decade, signficant advances have been made in the study and understanding of the shoulder mechanics, and pathophysiology of injury. Additionally, advances in surgical techniques, particularly arthroscopy , have aided in the diagnosis of and the developement of less invasive surgical treatments for injuries that do not respond to nonoperative measures. In this article, we reviewed the pathophysiology of injuries , diagnostic techniques, and surgical management of shoulder injuries in throwing athletes .

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.557-558
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• 2007

변화, 발전하는 IT기술과 디지털 기술, 그리고 네트워킹 기술 등에 따라 변전소의 운용 및 자동화 부문에 있어서도 적지 않은 변화가 일어나고 있다. 변전소의 건설 및 운용 면에 있어서도 예외가 아니며, 관련된 관심 사항으로는 시스템 구축 및 운용 시의 경제적인 측면, 시스템의 신뢰성, 그리고 유지보수 및 설비 관리의 효율성 등을 언급할 수 있다. 최근의 기술 추세는 Ethernet 통신 기반의 Network Device를 근간으로 하는 시스템으로의 변신을 주장하고 있으며, 세계 유수의 전력 설비 Maker에서도 이에 부응하기 위한 Network Device를 개발, 출시하고 있는 실정이다. 당소에서도 이와 같은 기술 추세에 부응하여 소위 미래형 변전소에서 요구되는 각종 ND의 개발을 추진하고 있으며, 그 첫번째 결과물로 154kV GIS의 운용 시에 요구되는 각종 제어 및 감시를 위한 Digital Control Unit(이하 DCU)을 개발하였다. 두 번째로 이와 같은 DCU와 연계하여 기존의 Remote Control 기능을 구비하고 상위시스템과 연결되며 변전실내에서 운용되는 Remote Control Unit(이하 RCU)을 개발하였다. 마지막으로 예방진단 시스템과 관련하여 주요 전력 설비의 상태 정보를 취합하는 Serial 통신 기반의 Static Type의 Diagnostic Analysis Unit(이하 DAU)을 하나의 Network Device로 개발함으로써 감시, 진단, 제어 등의 요구기능이 일체화 된 네트워크 기반의 미래형 변전소 자동화 시스템 구축에 한걸음 다가가는 기반을 마련하였다.

• 대한상한금궤의학회지
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• v.10 no.1
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• pp.115-124
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• 2018

Objective : The purpose of this paper is to report the improvements of a patient who has suffered from aftereffects following stroke such as dysgraphia and articulation disorder, which is treated by herbal medication based on Shanghanlun disease pattern identification diagnostic system. Methods : According to 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions', the patient was diagnosed as Taeyang-byung Gyeolhyung and number 138 provision, and was administered Sohamhyung-tang for 90 days. We recorded the progress of improvements based on the patient's statement and documented the patient's writing Results : The patient can write the letters such as U, 2, ㄹ,ㅇ more clearly and become confident on both writing and speaking. Conclusions : This case shows the effects of Sohamhyung-tang on aftereffects following stroke such as dysgraphia and articulation disorder. It was induced according to the 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions' so that it suggest a potential interpretation, which is different with it of the text books Herbal Formula Science and Sanghallonjeonghae, on the provision no. 138. Also the usage of Sohamhyung-tang in this case may support the way far from the diagnosis of oriental neurological medicine, which explain the pathology of stroke as fire-heat(火熱), dampness-phlegm(濕痰), static blood(瘀血) and dual deficiency of qi and blood(氣血兩虛).