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A Case of Acute Colonic Diverticulitis as a Complication of Colonoscopy
박동선,박지원,김성열,장길수,홍은영,안정선,김소연,백일현,김종혁,박충기 대한장연구학회 2013 Intestinal Research Vol.11 No.2
Colonoscopy is a good diagnostic tool and facilitates treatment of various colonic diseases. Nevertheless, it can induce many serious complications such as perforation and hemorrhage. Diverticulitis has also been reported as a serious complication of colonoscopy, with an incidence ranging from 0.04% to 0.08%. A 44-year-old male with chronic hepatitis B was presented with general weakness, myalgia, and febrile sensation. After admission for evaluation, pneumonia detected in the left upper and lower lobe and treated. We performed colonoscopy for screening and found multiple colonic diverticula in the right side of the colon. After 48 hours, the patient complained of abdominal pain and febrile sensation. Physical examination revealed tender-ness in the right side of the abdomen. Abdomen-pelvis computed tomography showed bowel wall thickening of the cecum and ascending colon and multiple inflamed diverticula at the cecum with pericolic fat infiltration and fluid collection. We diagnosed the patient with acute diverticulitis after colonoscopy. Thereafter, he was treated with bowel rest and broad-spectrum intrave-nous antibiotics, and recovered. With a review of the relevant literature, we report a case of acute colonic diverticulitis as a com-plication of colonoscopy. (Intest Res 2013;11:146-148)
공기업 수명주기 분류변수 도출을 위한 기초연구 : 준시장형 SOC 공기업을 대상으로
박동선,신완선 한국산업경영시스템학회 2014 한국산업경영시스템학회지 Vol.37 No.4
The enterprise life cycle derived from the product life cycle consists of introduction, growth, maturity and decline. The enterprise tries to reach the growth stage early and stay at the maturity stage stably through expanding its businesses and investing for the new technology. The public enterprise is not different but its life cycle is more prone to be affected by the national development and policy. A typical example can be found in the case of the quasi market SOC public enterprise which spends massive amount of fund to provide social infrastructure. After the fulfillment of its mandated mission it is exposed to the pressure of a merger or a closure usually because large portion of the debt is directly linked to the national financial stability and credit ratings. This research is focused on the variables that influence the life cycle of the quasi market SOC public Enterprise for its future competitiveness is in connection with its normalization, advancement and rationalization. In this respect, categorical variables system centering on public characteristics and profitability drew eight categorical variables such as policy outcomes, public benefit, finance and business values etc.
신부전 환자에서 치료 내시경술 후 발생한 십이지장 벽내 혈종과 혈복강 1예
박동선,신운건,김민관,이정아,허경미,김학양 대한소화기내시경학회 2007 Clinical Endoscopy Vol.34 No.5
Duodenal intramural hematoma is mostly caused by blunt abdominal trauma. It is also less commonly reported as a complication of anticoagulation therapy or as a blood dyscrasia, and as a complication of diagnostic/ therapeutic endoscopy. The presentation of these patients is abdominal pain, vomiting, fever and hematochezia, and this is rarely accompanied with intestinal obstruction, severe pancreatitis and acute peritonitis as its complications. The diagnosis is made clear by performing abdominal ultrasonography and abdominal computed tomography. We reported here on one case of intramural duodenal hematoma and hemoperitoneum after performing endoscopic hemostasis in a chronic renal failure patient who was on maintenance hemodialysis. (Korean J Gastrointest Endosc 2007;34:269-273) 십이지장 벽내 혈종의 원인은 복부에 외상이 가해졌을 때 가장 흔하며 혈액 응고 장애 환자나 항응고제 사용 환자 그리고 내시경적 치료 후에 드물게 발생할 수 있다. 십이지장 벽내 혈종의 증상은 복통, 구토, 발열, 혈변 등이 있고 장폐색이나 복막염, 췌장염 등의 합병증을 동반하기도 한다. 진단은 전산화 단층 촬영 및 복부 초음파 등으로 하며 장폐색이나 복막염의 합병증이 없고 환자의 전신 상태가 양호한 경우 보존적 치료만으로 대부분 회복된다. 저자들은 토혈을 주소로 내원한 말기 신부전 환자에서 십이지장 궤양의 내시경적 지혈술 후 발생한 십이지장 벽내 혈종과 혈복강이 보존적 치료로 호전된 1예를 경험하였기에 문헌 고찰과 함께 보고한다.
타원 모델링과 칼라정보를 이용한 효율적인 머리 추적 시스템 구현
박동선,윤숙,Park, Dong-Sun,Yoon, Sook 대한전자공학회 2001 電子工學會論文誌-SP (Signal processing) Vol.38 No.6
본 논문에서는 비디오 카메라를 통하여 획득한 연속적인 영상에서 사람의 머리를 인식하고 추적하는 시스템을 구현한다. 사람의 머리를 인식하기 위한 특징 벡터로서 얼굴 표면상의 특성인 사람의 피부색과 형태상의 특성인 타원 모델링을 이용한다. 또한 복잡한 배경으로부터 움직인 영역을 획득하기 위하여 시변 에지 검출 방법을 사용하고 획득된 영상에서 물체의 움직임을 판별하기 위하여 수직 투영 방법을 이용한다. 설정된 움직임 영역부분에 대하여 피부색을 갖고 있는 여러 개의 얼굴 후보영역을 설정하고 사람의 얼굴을 대표할 수 있는 타원 매핑을 적용하여 가장 최적으로 매핑되는 영역을 사람의 얼굴 부분으로 인식한다. 본 논문에서 제안한 방법은 사람 얼굴이 360도 회전하는 경우와 부분적으로 가려진 경우 그리고 좌우로 기울어진 경우에서도 우수한 성능을 보여주고 있다. 본 논문에서는 움직임 기반 추적 방법과 인식 기반 추적 방법을 이용하여 사람의 얼굴 부분이 빠르게 움직이는 경우에도 정확한 사람 얼굴 추적이 가능하도록 한다. In this paper, we design and implement a system which recognizes and tracks a human head on a sequence of images. In this paper, the color of the skin and ellipse modeling is used as feature vectors to recognize the human head. And the modified time-varying edge detection method and the vertical projection method is used to acquire regions of the motion from images with very complex backgrounds. To select the head from the acquired candidate regions, the process for thresholding on the basis of the I-component of YIQ color information and mapping with ellipse modeling is used. The designed system shows an excellent performance in the cases of the rotated heads, occluded heads, and tilted heads as well as in the case of the normal up-right heads. And in this paper, the combinational technique of motion-based tracking and recognition-based tracking is used to track the human head exactly even though the human head moves fast.