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      • 국방 CALS 통합 데이터 환경을 위한 내용 기반의 표준 데이터 검색 기술 개발

        정승욱,우훈식,Jeong, Seung-Uk,U, Hun-Sik 대전대학교 군사연구원 2004 군사학연구 Vol.2 No.-

        To build up the military strength based on information oriented armed forces, the Korean ministry of national defense (MND) promotes the defense CALS (Continuous Acquisition and Life cycle Support) initiative for the reductions of acquisition times, improvements of system qualities, and reductions of costs. These defense CALS activities are the major component of the underlying mid and long term defense digitization program and the ultimate goal of program is to bring a quick victory by providing real-time battlefield intelligence and the economical operations of the military. The concept of defense CALS is to automate the acquisition and disposition of defense systems throughout their life cycle. For implementing defense CALS, the technology for exchange and sharing CALS standard data that is created once and used many times should be considered. In order to develop an efficient CALS information exchange and sharing system, it is required to integrate distributed and heterogeneous data sources and provide systematic search tools for those data. In this study, we developed a content based search engine technology which is essential for the construction of integrated data environments. The developed technology provides the environment of sharing the CALS standard data such as SGML(Standard Generalized Markup Language) and STEP(Standard for The Exchange of Product model data). Utilizing this technology, users can find and access distributed and heterogeneous data sources without knowing its actual location.

      • KCI등재후보

        캡슐내시경으로 진단한 Peutz-Jeghers 증후군

        정승욱 ( Seung Uk Jeong ),송현주 ( Hyun Joo Song ),최은광 ( Eun Kwang Choi ),조유경 ( Yoo Kyung Cho ),김흥업 ( Heung Up Kim ),송병철 ( Byung Cheol Song ),장원영 ( Weon Young Chang ),맹영희 ( Young Hee Maeng ) 대한장연구학회 2010 Intestinal Research Vol.8 No.2

        Peutz-Jeghers syndrome (PJS), is a rare autosomal dominant hereditary disorder. Intestinal hamartomatous polyps in association with melanocytic pigmentation of the skin and mucous membranes characterize PJS. Patients with PJS often have complications associated with the polyps, such as intestinal obstruction, intussusception, acute or chronic gastrointestinal bleeding, and the development of various types of cancer. Enteroclysis, small bowel follow-through, and push enteroscopy are generally used to identify the presence and location of small bowel polyps. Wireless capsule endoscopy (CE) has been confirmed as a feasible, safe, and sensitive test for the surveillance of small bowel polyps in patients with PJS and could replace radiographic small bowel surveillance. Here, a case of PJS newly diagnosed by CE is reported. The patient, a 30-year-old man who had developed rectal polyps associated with anal extrusion 7 years previously, had six episodes of hematochezia. (Intest Res 2010;8:181-186)

      • KCI등재

        비만과 담낭질환

        정승욱 ( Seung Uk Jeong ),이성구 ( Sung Koo Lee ) 대한소화기학회 2012 대한소화기학회지 Vol.59 No.1

        Obesity is an important health problem in the world and related to many critical diseases, such as diabetes, cardiovascular disease, and metabolic syndrome. Obesity leads to fat infiltration of multiple organs and infiltrated adipose tissue produces many cytokines resulting in the dysfunction of organs such as the gallbladder. In the biliary diseases, obesity and overweight have been known as a major risk factor for gallstones. According to current studies, obesity, insulin resistance, hyperinsulinemia, and metabolic syndrome are related to various gallbladder diseases including gallbladder stones, cholecystitis, gallbladder polyps, and gallbladder cancers. We reviewed further literature on the obesity and gallbladder diseases, in aspects of epidemiology, mechanism, pathology and prevention. (Korean J Gastroenterol 2012;59:27-34).

      • KCI등재

        담낭수축 유무에 따른 만성 담낭염의 임상적 의의

        정승욱 ( Seung Uk Jeong ),이성구 ( Sung Koo Lee ),이병욱 ( Byung Uk Lee ),이상수 ( Sang Soo Lee ),박도현 ( Do Hyun Park ),서동완 ( Dong-wan Seo ),김명환 ( Myung-hwan Kim ) 대한췌담도학회 2016 대한췌담도학회지 Vol.21 No.4

        배경/목적: 만성 담낭염이란 담낭의 만성적인 염증반응으로 인해 담낭벽의 비후를 보이는 질환으로 염증이 오랜기간 지속되면 담낭벽의 수축성 변화를 유발하기도 한다. 지속적인 만성 담낭염, 특히 담낭의 수축성 변화는 전암성 병변으로 인식되고 있다. 하지만 만성 담낭염과 담낭벽의 수축성 변화에 대한 임상적인 의의를 살펴본 연구가 거의 없고 담낭암과의 관련성 또한 연구된 바가 없다. 방법: 본 연구에서는 복부초음파와 CT를 통해 만성 담낭염으로 진단된 환자 중 수술을 시행하여 조직학적 확진을 받은 409명의 환자를 분석하였다. 결과: 409명의 만성 담낭염 환자 중 94%에서 담석이 있었고, 25% 환자에서 수축성 담낭을 가지고 있었다. 담낭벽 수축성 변화 유무로 나누어 분석하였을 때 수축성 담낭그룹에서 복통을 호소하였던 환자가 많았고, 미만성 형태의 담낭벽비후 및 개복수술로 전환된 비율이 높았다. 409명의 환자 중 7명이 담낭암으로 최종 진단되었는데 모두 60세 이상의 고령이었고 담석성 복통을 호소하여 수술을 진행하였다. 담낭벽비후 형태, 수축성 변화는 담낭암 환자에서 차이가 없었다. 결론: 담낭의 수축성 변화는 만성 담낭염의 심한 형태로 생각되나 담낭암을 예측하는데 있어서 의미는 없었다. 따라서 수축성 변화 유무와 상관없이 만성 담낭염 환자에서는 고령이고 복통이 있으면 담낭절제술이 권고되지만 이런 조건에 맞지 않다면 주의 깊은 추적관찰도 고려해 볼 수 있겠다. Background/Aims: Chronic cholecystitis and contraction of gallbladder (GB) have been regarded as precancerous lesions. The aim of study is to clarify whether chronic cholecystitis and GB contraction have clinical significance. Methods: This study included 409 patients underwent cholecystectomy for chronic cholecystitis between January 2006 and June 2011 at a single center. Data regarding radiologic findings and blood tests were collected retrospectively. Results: About 384 patients (94%) had GB stones. Among 409 patients, 104 (25.4%) patients had contracted GB and 305 (74.6%) patients did not. Biliary pain was more common in the contracted GB group (42.3% vs. 31.1%). The contracted GB group had a higher proportion of diffuse wall thickening type and a higher conversion rate to open cholecystectomy. Only seven patients (1.7%) were finally diagnosed with GB cancers. All patients were over 60 years of age and complained of biliary pain; however, only one patient had contraction of GB. Conclusions: Biliary pain, diffuse wall thickening, and conversion to open cholecystectomy were more frequent in the contracted GB group. Although incidental GB cancers were rarely diagnosed, all were older and had biliary pain. These will be used as significant evidences when making a treatment plan in chronic cholecystitis and contracted GB.

      • KCI등재후보

        총담관내 거대 담석과 카테터로 유발된 주췌관 압박에 의한 급성 췌장염

        최영민 ( Young Min Choi ),정승욱 ( Seung Uk Jeong ),이화영 ( Hwa Young Lee ),장회수 ( Hoe Soo Jang ),최은광 ( Eun Kwang Choi ) 대한췌담도학회 2017 대한췌담도학회지 Vol.22 No.2

        급성 췌장염은 다양한 원인에 의해 발생되는 췌장의 염증성 질환으로 담도질환에 대한 내시경 시술이나 영상의학적 시술에 의해서 유발되기도 한다. 담도 시술과 관련하여 발생하는 췌장염은 담도에 대한 조작보다는 바터팽대부를 절개 또는 확장시키거나 바터팽대부를 통과시켜 스텐트 혹은 도관을 거치하면서 유발되는 췌관의 압박에 의해 발생하는 것으로 알려져 있다. 바터팽대부에 대한 조작을 시행하지 않는 경우에는 췌장염 발생의 위험성이 없는 것으로 되어 있고 더하여 경피경관담도경 시술을 위한 도관 삽입 후에 췌장염이 발생한 경우는 보고된 바가 없었다. 본 증례에서는 3 cm 가량의 거대 총담관 담석들에 의해 발생된 담도염에 대해 경피경관담도경 시술을 준비하는 과정 중 총담관에 도관을 삽입한 이후 급성 췌장염이 발생하였다. 이에 저자들은 원위부 총담관 내부에 삽입된 도관으로 인해 거대 총담관 담석이 췌장두부를 압박하였고 이로 인한 주췌관의 가역적인 폐색이 유발되어 급성 췌장염이 발병한 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Acute pancreatitis is occasionally caused by endoscopic treatments or radiologic interventions of the pancreatobiliary tract. However, no reports indicate that acute pancreatitis resulted from the insertion of a percutaneous transhepatic cholangiography (PTCS) catheter in the common bile duct (CBD). A 65-year-old woman visited our hospital with acute cholangitis due to about 3 cm-sized CBD stones. We planned to perform PTCS because of the large stones and altered anatomy (Billroth II). The patient was discharged after tract dilatation and insertion of a PTCS catheter in the distal CBD without manipulations of Ampulla of Vater (AOV). However, she visited the emergency room due to acute pancreatitis at three days after discharge. Computed tomography revealed upstream dilation of the main pancreatic duct following the compressed area of a large stone and catheter. Thus, we report a case that presented with acute pancreatitis induced by insertion of a PTCS catheter without manipulations of AOV. Korean J Pancreas Biliary Tract 2017;22(2):87-91

      • KCI등재

        담낭암의 전이성 림프절의 자연파열로 발생한 혈액복막 1예

        최영민 ( Young Min Choi ),정승욱 ( Seung Uk Jeong ),좌혜영 ( Hye Young Jwa ),최은광 ( Eun Kwang Choi ),김민정 ( Min Jung Kim ) 대한소화기학회 2017 대한소화기학회지 Vol.69 No.1

        Gallbladder (GB) cancer is asymptomatic in nature, making diagnosis and treatment difficult. The lymph node status is the strongest predictor of long-term survival for patients with GB cancer, and a complete removal of regional lymph nodes is important for patients undergoing radical resection of GB cancer. Unfortunately, lymph node metastases are common in the early stages of GB cancer. However, there have only been a few cases describing the symptoms or complications of metastatic lymph nodes in patients with GB cancer. Although hemoperitoneum caused by metastatic lymph nodes can occur with several cancers, it is very rare. To the best of our knowledge, hemoperitoneum from spontaneous ruptures of metastatic lymph nodes with GB cancer has not yet been reported. Herein, we describe such a case in a patient newly diagnosed with GB cancer. (Korean J Gastroenterol 2017;69:79-82)

      • KCI등재

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