임신 중 발생한 이명 환자 치험 1례

최원진,김명동,Choi, Won-Jin,Kim, Myung-Dong 대한한방안이비인후피부과학회 2010 한방안이비인후피부과학회지 Vol.23 No.2

The above patient of this case is outpatient on April 18, 2007 who visited my office with tinnitus, headache, dizziness, and backpain, and, she was in pregnancy 14 weeks. Her symptoms were diagnosed as tinnitus from kidney meridian weakness due to pregnancy. After she was administered with Yukmijihwnagtang, her tinnitus disappeared and her other symptoms became better. So this result suggests that herbal administration of Yukmijihwangtang was effective on tinnitus due to pregnancy.

급성 거미막하 출혈의 진단: FLAIR MR영상과 조영전 CT와의 비교

최원진,최대섭,김정혜,김순,이현경,오연희,김승현,이성우,김욱년,이규춘,Choi, Won-Jin,Choi, Dae-Seob,Kim, Joung-Hae,Kim, Soon,Lee, Hyeon-Kyeong,Oh, Yoen-Hee,Kim, Seung-Hyeon,Lee, Sung-Woo,Kim, Wook-Nyeon,Lee, Kyu-Chun 대한자기공명의과학회 2001 Investigative Magnetic Resonance Imaging Vol.5 No.2

목적 : 급성 거미막하 출혈의 진단에 있어 CT와 비교하여 fluid-attenuated inversion-recovery (FLAIR) MR영상의 유용성을 평가하고자 하였다. 대상 및 방법 : 증상 발생 3일 이내에 비조영 CT와 FLAIR MR영상을 모두 얻었던 28명의 급성 지주막하 출혈 환자를 대상으로 하였다. 거미막하 공간을 피질구, 실비우스열구, 기저조, 후두와의 4부위로 나누어 각 부위 별로 CT와 FLAIR영상에서 출혈이 보이는 정도를 0(출혈 없음), 1(출혈 의심), 2(뚜렷한 출혈)의 점수로 구분하여 평가하였다. 또한 이들 28명 환자와 대조군 35명의 FLAIR영상을 비교하여 거미막하 공간의 고신호 강도를 기준으로 출혈의 유무를 판정할 경우, FLAIR영상의 민감도, 특이도 및 진단적 정확도를 평가하였다. 결과 : FLAIR영상에서 급성 거미막하 출혈은 모든 환자에서 뇌척수액이나 뇌 실질보다 고신호 강도를 보여 100%의 발견율을 보였다. CT와 비교하여 피질구($1.11{\pm}0.80$ vs $0.70{\pm}0.83$: p(0.05)와 후두와($1.41{\pm}0.74$ vs $0.78{\pm}0.80$: p(0.05)에서 FLAIR영상이 CT보다 통계적으로 유의하게 우수하였다 FLAIR영상에서 거미막하 공간의 고신호 강도를 기준으로 거미막하 출혈 유무를 평가한 결과에서 100%의 민감도, 특이도 및 진단적 정확도를 보였다. 결론 급성 거미막하 출혈의 진단에 FLAIR MR영상은 매우 유용하며, 특히 출혈의 양이 소량인 경우와 후두와의 출혈을 진단하는데 CT보다 우수하다. Purpose : Our aim was to evaluate the usefulness of fluid-attenuated inversion recovery (FLAIR) MR imaging for detection of acute subarachnoid hemorrhage (SAH) compared with unenhanced CT. Materials and methods ; We compared FLAIR MR images with unenhanced CT scans in 28 patients with acute SAH. Findings of SAH on CT and MR images were graded as 0 (absence), 1 (suspicious), 2 (definite) in the cerebral sulci, sylvian fissure, basal cistern, and cisterns of the posterior fossa. We also compared FLAIR MR images of 28 patients with those of 35 normal subjects, and then the sensitivity, specificity, and diagnostic accuracy of FLAIR MR image for detection of acute SAH were calculated. Results : FLAIR MR image was superior to CT in detecting SAH in the posterior fossa ($1.41{\pm}0.74{\;}vs{\;}0.78{\pm}0.80$; p<0.05) and cortical sulci ($1.11{\pm}0.80{\;}vs{\;}0.70{\pm}0.83$; p<0.05). There was no significant difference between FLAIR MR image and CT in detecting SAH in the basal cistern and sylvian fissure. The sensitivity, specificity, and diagnostic accuracy of FLAIR MR image for detection of SAH were 100% in all. Conclusion : FLAIR MR image is useful in detecting acute SAH, especially in patients with small amount of SAH or SAH in the posterior fossa.

외과적으로 치료한 갑상선 결절에 대한 임상적 고찰

최원진(Won Jin Choi),김이수(Lee Su Kim),정인규(In Kyu Jung) 대한두경부종양학회 1993 대한두경부 종양학회지 Vol.9 No.1

During 7 years, from Jan. 1986 to Dec. 1992, authors studied 208 cases of the surgically managed thyroid nodules at the Department of General Surgery, Han Kang Sacred Heart Hospital and obtained the following results. 1) Among the total 208 cases, male to female ratio was 1:11.2 in benign thyroid diseases and 1:9 in malignant thyroid diseases. The benign disease was prevalent between second and forth decade comparing with malignant disease between third and fifth decade. 2) The most common duration of illness was 3 months(26.0%). 3) Palpable neck mass was the most common chief complaint(100%). Palpitation. fatigue, and sweating were common complaints in patient with benign disease, and fatigue, palpitation, and sweating in malignant disease in decreasing order of frequency. 4) 55.8 % of lesions were in right lobe, 33.2% in left lobe, 5.8% in diffuse type, 4.8% in bilateral lobes, and 0.5% in isthmus. 5) The most common size of nodule was between 2.0cm and 3.9cm in diameter, which consisted of 55.1% of benign disease and 48.0% of malignant disease. 6) 86.5% of thyroid function test showed euthyroidism, 10.1% hyperthyroidism, and 3.4% hypothyroidism. 7) Thyroid scanning of 176 patients revealed cold nodules in 92.5% of benign diseases and in 92.9% of malignant diseases. 8) The most common benign disease was adenomatous hyperplasia(62.7%), and the most common malignant disease was papillary adenocarcinoma(80.0%). 9) Fine needle aspiration cytology was performed in 91 cases, and it showed 69.0% of sensitivity, 90.3% of specificity, and 83.5% of accuracy. 10) Frozen biopsy was performed in 109 cases. and it showed 93.9% of sensitivity, 100.0% of specificity, and 98.2% of accuracy. 11) The most commonly performed operation was unilateral lobectomy(including unilateral lobectomy with isthmectomy)(79.1%) in benign disease. and total thyroidectomy(62.0%) in malignant disease. 12) Postoperative complication showed 5 cases of wound infection (2.4%), 3 cases of transient hypoparathyroidism(1.4%), 3 cases of transient hoarseness(1.4%), 2 cases of postoperative bleeding(1.0%), 1 case of permanent hypoparathyroidism(0.5%), 1 case of permanent hoarseness(0.5%), and 1 case of postoperative pneumonia (0.5%).

實驗感染 스파르가눔의 마우스體內 移行經路 및 分布

崔元眞(Won Jin Choi) 대한기생충학열대의학회 1984 The Korean Journal of Parasitology Vol.22 No.2

임상연구 : Clonidine 전투약이 Propofol에 의한 마취유도 및 기관내 삽관 시 A-Line(TM) ARX Index와 혈역학적 변화에 미치는 영향

최원진 ( Won Jin Choi ),전우재 ( Woo Jae Jeon ),심재항 ( Jae Hang Shim ),조상윤 ( Sang Yoon Cho ),염종훈 ( Jong Hoon Yeom ),신우종 ( Woo Jong Shin ),김경헌 ( Kyoung Hun Kim ) 대한마취과학회 2003 Korean Journal of Anesthesiology Vol.45 No.1

頸部腫瘤의 臨床的 考察

崔元眞(Won Jin Choi),金鎭福(Jin Poke Kim) 대한외과학회 1979 Annals of Surgical Treatment and Research Vol.21 No.10

보안성 향상을 위한 인메모리 기반 실시간 로그분석 환경 구성

최원진(Won-Jin Choi),강지우(Ji-Woo Kang),안재훈(Jae-Hoon An),손재기(Jae-Gi Son) 한국정보과학회 2015 한국정보과학회 학술발표논문집 Vol.2015 No.12

PathFinding Method 연구

최원진 ( Won-jin Choi ),구본우 ( Bon-woo Gu ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.1

게임에서는 장애물이 가로 막고 있을 때 길 찾기 알고리즘이 요구된다. Path Finding Method 는 길과 장애물을 고려하여 목적지까지의 경로를 찾는 방법을 말한다. A* 알고리즘은 이런 복잡한 미로 찾기에 최적화된 Path Finding 알고리즘이다. 하지만, 모바일 같은 저비용 기기에서 A* 알고리즘을 사용하기엔 단순한 지형에서도 연산 부하가 발생할 수 있다. 본 논문에서는 가상의 공간에서 Grid를 구축하여, 통행이 가능한 곳과 불가능한 곳을 나누어 최종 지점에 도달할 수 있도록 하는 방식을 제안한다. 본 논문에서 제시한 Path Finding Method 는 최종 지점이 막다른 길인 경우 가장 가까운 이동 가능한 경로로 길을 안내하도록 설계하여 예외 상황에 대처했다. 대표적인 길 찾기 알고리즘인 Dijkstra 알고리즘은 최소 비용을 고려해서 최단으로 가는 거리를 비교하여 길을 나타낼 수 있다. 하지만, Dijkstra 알고리즘 경우 비용이 양수가 아닌 음수의 경우 무한 루프에 빠지는 등 결과 값이 제대로 나오지 않을 수 있다. 본 논문에서 제안한 Path Finding Method 는 최소 비용을 노드별로 비교하는 방식이 아닌 초기 비용을 알 수 없는 분야에 쉽게 사용할 수 있다. 본 논문에서는 제안한 Path Finding Method 를 적용하여 Web 게임을 제작하는 것에 성공하였다. 향후, Path Finding Method 결과에 위치 정렬 알고리즘을 적용하여, 중복된 지역을 가는 확률을 최소화하면서 정리된 Path 가 돌출되도록 연구할 예정이다. 본 논문의 Path Finding Method 은 게임 개발 분야에 적극 기여되길 바란다.

주제별 논단 : 자본시장통합법의 쟁점과 과제 ; 「자본시장과 금융투자업에 관한 법률」제정안의 주요 내용 및 의견수렴 경과

최원진 ( Won Jin Choi ) 한국금융법학회 2006 金融法硏究 Vol.3 No.1

In June 2006, the government made a pre-announcement of the Financial Investment Services and Capital Markets Act. This act intends to increase intermediary functions of the capital market, strengthen investor protection, and promote competition and financial innovation of the finance investment industry. In pursuit of the purpose, the legislation has four basic principles. First, positive list system will be abolished and a comprehensive system will be introduced. This system will improve market efficiency and give more flexibility to the capital market. In the current positive list system, only the enumerated financial products can be devised and traded in the market. On the other hand, the comprehensive system allows all financial products, except for deposit and insurance products, to be developed and traded. This system introduces the concept of ``contract for differences`from the FSMA (Financial Services and Markets Act) of the United Kingdom, and the concept of ``investment contract`` from the Securities Act of the United States of America. Second, a functional regulation system will be introduced. This system applies same regulations for financial functions of same nature. Financial services will be reclassified into 6 financial investment services of dealing service, arranging service, collective investment service, discretionary investment advisory service, non-discretionary investment advisory service, and trust service, and regulations will be placed by service functions. Financial products and investors will also be categorized, and regulations will be applied based on its category. Financial products will be classified into securities, exchange traded derivatives, and otc derivatives, and investors will be divided into non-professional investor and professional investor. This measure will eliminate regulatory arbitrage and deficiencies of investor protection. Third, investor protection will be intensified through advanced investor protection vehicles. An internal control system, which includes product guidance, suitability principle, regulations on unsolicited calls, and conflict of interest prevention, will be introduced. Fourth, barriers among 6 financial investment services in the capital market will be removed. Companies will be able to cover all financial investment services. This removal process is expected to bring big size financial investment companies in the Korean capital market. This act is currently in the screening process under the Ministry of Government Legislation, and will be submitted to the National Assembly around the end of 2006. This act will take effect after one year and a half from its official announcement.

SDS(Software Defined Storage) 환경에서의 SMI-S 기반 볼륨 스토리지 관리 방안

최원진(Won-Jin Choi),안재훈(Jae-Hoon An),박창원(Chang-Won Park),손재기(Jae-Gi Son) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.11