기관지내 발생한 과오종치험 1례

김영호,김수성,김공수,Kim, Yeong-Ho,Kim, Su-Seong,Kim, Gong-Su 대한흉부심장혈관외과학회 1983 Journal of Chest Surgery (J Chest Surg) Vol.16 No.1

The origin of hamartoma from the Greek words for "error" and "tumor" is credited to Albrecht who in 1904 described a disorganized arrangement of tissues normally present in an organ and applied also to tumors found in many organs other than the lung. The hamartoma is the most common benign tumor of the lung and revealed accidentally as asymptomatic coin lesion on routine chest X-ray, but the incidence is very low and especially endobronchial origin extremely low. We have been successful surgical experienced one case of a 36-year-old female having endobronchial hamartoma, 4x2.Sx2 cm in size and located at right main bronchial lumen near the carina, which consists of a hard, nodular surfaced mass and adhered to the cartilaginous portion of the right upper lobe bronchus by dense fibrous band and migrate to trachea on expiration or coughing. This case was not suspected by chest X-ray or bronchogram and confirmed bronchoscopy with biopsy. Right pneumonectomy was inevitable because of bronchiectatic change of right bronchus due to tumor obstruction. She was discharged with relatively good general condition on 21 days postoperatively.

Watersheds 기반 계층적 이진화를 이용한 단백질 반점 분할 알고리즘

김영호,김정자,김대현,원용관,Kim Youngho,Kim JungJa,Kim Daehyun,Won Yonggwan 한국정보처리학회 2005 정보처리학회논문지B Vol.12 No.3

생물학자가 단백질을 검색하고 분석하기 위해서는 2차원 젤 전기영동(2DGE : Two Dimensional Gel Electrophoresis) 실험을 해야 한다. 실험 결과는 2차원 영상이 생성된다. 2차원 영상에서 단백질 반점의 패턴 분석을 위해 2차원 젤 영상에 펼쳐진 단백질 반점들을 영상처리를 통해 분할하고, 대조 그룹의 단백질 패턴과 비교분석을 통해 밝히고자하는 단백질 반점을 찾아내야 한다. 단백질 반점을 분할하는 알고리즘에 있어서 기존에는 가우시안 함수를 적용하였지만, 최근 들어 형태학 분리개념에 의한 Watersheds 영역기반 분할(Watersheds region-based segmentation) 알고리즘을 활용하고 있다. 그러나 Watersheds 영역기반 분할 알고리즘은 크기가 큰 영상에서 원하는 영역을 신속하게 분할한다는 장점이 있지만, 영상 화소의 그레이 값이 연속적인 경우 실제 반점의 개수 에 비해 과다분할(over-segmentation)되거나 과소분할(under-segmentation)의 문제점을 안고 있다. 이는 마커(marker) 포인트의 설정에 의해 어느 정도 해결할 수 있지만 병합(merge)과 분할(split) 과정을 반복해야 한다. 본 논문은 Watersheds 기반 계층적 이진화 기법을 적용하여 마커 드리븐 Watersheds 영상분할의 문제점을 해결하고자 한다. Biologist must have to do 2DGE biological experiment for Protein Search and Analysis. This experiment coming into being 2 dimensional image. 2DGE (2D Gel Electrophoresis : two dimensional gel electrophoresis) image is the most widely used method for isolating of the objective protein by comparative analysis of the protein spot pattern in the gel plane. The process of protein spot analysis, firstly segment protein spots that are spread in 2D gel plane by image processing and can find important protein spots through comparative analysis with protein pattern of contrast group. In the algorithm which detect protein spots, previous 2DGE image analysis is applies gaussian fitting, however recently Watersheds region based segmentation algorithm, which is based on morphological segmentation is applied. Watersheds has the benefit that segment rapidly needed field in big sized image, however has under-segmentation and over-segmentation of spot area when gray level is continuous. The drawback was somewhat solved by marker point institution, but needs the split and merge process. This paper introduces a novel marker search of protein spots by watersheds-based hierarchical threshold, which can resolve the problem of marker-driven watersheds.

팽이버섯 분열자의 생성원인 및 특성

김영호,공원식,김경수,유창현,김한경,성재모,류영진,김광호 ( Young Ho Kim,Won Sik Kong,Kyung Soo Kim,Chang Hyun You,Han Kyoung Kim,Jae Mo Sung,Young Jin Ryu,Kwang Ho Kim ) 한국균학회 1998 韓國菌學會誌 Vol.26 No.2

흉강경검사의 임상적 고찰

김영호,조중구,Kim, Yeong-Ho,Jo, Jung-Gu 대한흉부심장혈관외과학회 1984 Journal of Chest Surgery (J Chest Surg) Vol.17 No.3

During a 12-month period, 31 patients underwent diagnostic and therapeutic thoracoscopy for previously undiagnosed thoracic diseases. In all patient, the diagnosis had been unobtainable by the usual diagnostic modalities of thoracentesis, closed pleural biopsy, bronchoscopy, or mediastinoscopy. The patients ranged from 4 years to 84 years old. One procedure was performed for mediastinal mass, 8 for parenchymal lesions, 21 for pleural diseases, and 1 for diaphragmatic disease. A correct diagnosis was obtained by thoracoscopy in 31 procedures for a 90% overall accuracy rate. There was no clinically significant morbidity in this series and no procedure-related mortality. Thoracoscopy, performed under intercostal nerve block and regional anesthesia, has proved to be a very attractive method of the diagnosis of thoracic disease.

식품냉동에서의 동결과 해동

김영호,Kim Young Ho 대한설비공학회 1987 설비저널 Vol.16 No.1

온배수 영향 저감을 위한 친환경 구조물 적용

김영호,오인근,김윤식,Kim, Yeong-Ho,O, In-Geun,Kim, Yun-Sik 대한전기협회 2005 전기저널 Vol.346 No.-

동(銅)의 위생학적(衛生學的) 고찰(考察)(2)

김영호,Kim, Yung Ho 대한설비공학회 1988 설비저널 Vol.17 No.4

음이온 개환중합에 의한 폴리(e-카프로락탐)/폴리(프로필렌 글리콜) 3블럭 공중합체의 합성

김영호,김갑진,차희철,Kim, Yeong-Ho,Kim, Gap-Jin,Cha, Hui-Cheol 한국섬유공학회 1993 한국섬유공학회지 Vol.30 No.9

1 Mole of poly(propylene glycol) (PP6) with molecular weight of 2000 was reacted with 2 moles of hexamethylene diisocyanate (HDI) at 12$0^{\circ}C$ for 15 hours under nitrogen atmosphere to give HDI-PPG-HDI intermediate. Then s-caprolactam (CL) was added to the system to block the end NCO groups. The resultant prepolymer has the form of H-carbamoyl caprolactam and can be used as an activator with NaH catalyst for the anionic ring opening polymerization of CL. Using this method. PCL-b-PPG-b-PCL triblock copolymers with various content of PPG up to 40 wt% were obtained. Homo poly(s-caprolactam) (PCL) was also polymerized using newly synthesized CL-blocked HDI activator (hexamethylene dicarbamoyl dicaprolactam). The yields of the polymerizations were determined by gravimetry after successive soxhlet extraction with water and acetone. Homo PCL has the yield of about 94% The yields of triblock copolymers were (lecreased with increasing PPG content antral the copolymer with 40 wt% PPG feed content has the yield of about 80%. According to the results of copolymer composition. determined by 1 H-NMR spectroscopy. it has been revealed that the PPG content in the block copolymer is greater than the prepolymer composition in the feed when the prepolymer composition is less than 30 wt%. On the contrary when the prepolymer composition in the feed is over 30 wt%. the PPG content is lower than the feed composition.

개심술후 요도협착 `

김영호,조중구,김공수,Kim, Yeong-Ho,Jo, Jung-Gu,Kim, Gong-Su 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.3

In a review of our cases presenting with urethral strictures, we noted a high incidence following open heart surgery. In an attempt to elucidate factors predisposing to the occurrence of urethral stricture, we studied the following data; preoperative laboratory study, aortic clamp time, dosage of heparin and protamine, degree of hypothermia, platelet count, and blood pressure. No significant differences were found between the stricture group and the non-stricture group. Of 33 patients admitted in our hospital with urethral stricture, 8 had suffered after open heart surgery. We believe that the urethral catheter is at least partly responsible for stricture formation. Associated factor, for example urethral ischemia, may be contributory.

부분심내막상 결손증의 교정수술치험 3례

김영호,김공수,Kim, Yeong-Ho,Kim, Gong-Su 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.2

The partial A-V canal defect consist of ostium primum type atrial septal defect with a cleft mitral anterior leaflet. The clinical findings depend upon the site and size of the left-to-right shunt, the degree of A-V valvular regurgitation, and the degree of resultant pulmonary artery hypertension. We experienced 3 cases of similar condition. The data were as follow: 1. Chest P-A showed increased pulmonary vascularity and moderate cardiomegaly with left atrial enlargement. 2. E.K.G. showed left axis deviation, left atrial enlargement, and left ventricular hypertrophy. 3. Right heart catheterization showed significant 02 step up of SVC-RA and left-to-right shunt. 4. Left ventriculogram showed mitral regurgitation and filling of both atrium. Operative findings were as follow: 1. Primum type atrial septal defect [2x2 cm]. 2. Cleft in the anterior leaflet of the mitral vave. 3. No evidence of ventricular septal defect and tricuspid anomaly. Through a right atriotomy with moderate hypothermia, the mitral cleft was approximated with interrupted sutures. The interatrial communication was closed by a patch of Dacron/pericardium. The patch was attached to junction of the mitral and tricuspid valves along the crest of the ventricular septum using interrupted sutures and the other site using continuous sutures. Postoperative course was uneventful and discharged in good general condition except postoperative bleeding in case 3.