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김경섭(Kyeong-Seop Kim),신승원(Seung-Won Shin),이세민(SeMin Lee),정진선(Jin-Sun Jeong),박원서(Wonse Park),김기덕(Kee-Deog Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.6
In this study, we propose the unsupervised image segmentation algorithm to estimate dental plaque accumulations on digital imaging with methylene blue disclosed plaque. With this aim, RGB color plane is mapped into HSI coordinates and the circular histogram of Hue is reconstructed by applying Otsu’s threshold level. The histogram distribution on Saturation features is also analyzed by maximizing the variance between a plaque candidate and non-plaque one. The dental plaque regions are resolved by applying the composite decision logics based on the threshold level of Hue and Saturation.
Matti-Russe술식을 이용한 주상골 불유합의 치료
안상로,정진선,박원,우영길 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2
13 Cases of scaphoid nonunion had been treated by original Matti-Russe procedure and followed up more than 2 years, from September 1990 to September 1993, at the Department of Orthopedic Surgery, Chung Nam National University Hospital. The results were as follows ; 1. Scaphoid nonunion occurs between 21 to 40 years of age( 13 cases ) and 13 cases were all male. 2. Most commonly, the site of fracture were confined to middle one third in 9 cases( 69 %), and fracture line were transverse in 6 cases( 46% ). 3. Radiological union was obtained with DISI deformity correction and normalization of intrascaphoid angle in all cases. 4. The result of treatment were excellent in 8 cases( 61%), good in 4 cases( 31%) and fair in 1 case( 8%)
이광진,정진선 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2
Thirty children with fracture of shaft of the femur were encountered into retrospective analysis to compare the results between conventional (traction with 90-90 followed by hip spica cast) and operative methods (Ender nail intramedullary nailing and external fixation) especially pointing to residual deformity, shortening, hospitalization and sets of radiographs. Our conclusion for this study is that the most femoral shaft fractures in children over 7 years of age can be treated by closed I-M nailing or external fixator with results that are not better than with conventional method in addition to less shortening, deformity, hospitalization and sets of radiographs taking. Other factors such as comminution, site of fracture, head injury, multiple injury in addition to age of child should be considered to select the method of treatment in femoral shaft fracture in children.
박찬희,이광진,안철세,정진선 대한골절학회 1995 대한골절학회지 Vol.8 No.1
Chondrodiatasis is a limb lengthening technique involving slow, controlled, symmetric epiphyseal distraction. The technique has significant advantages over other correction methods that involves osteotomies. We have used this methods with other surgical technique to lengthen limbs in 2 children with leg-length discrepancies or with angular deformities. Shonely after initial lengthening, the growth plate seemed maintain its function. But, several years later, the growth plate fused. In spite of many report that chondrodiatasis having many complications, there was no special complications in our cases. In the absence of definite proof, we decide to use this technique clinically almost during the last two years of the growth period.