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Short Rib-Polydactyly Syndrome 1례
이권해 ( Kwon Hae Lee ),이길우 ( Gil Woo Lee ),남계현 ( Kae Hyun Nam ),조태호 ( Tae Ho Cho ) 대한주산의학회 1990 Perinatology Vol.1 No.1
Short rib-polydactyly syndrome(SRPS) are disorders distinguished by polydactyly, narrow thorax, and short limb dysplasia. Generally, three different types have been presented, byt some other variants have been reported subsequently. These rare lethal disorders considered to be inherited as autosomal recessive conditions. No case has been reported up to present in our national literature We recently experienced a case of short rib-polydactyly syndrome, so we present the case with a review of literature.
강체 운동 해석 기법에 관한 연구 -하악골 운동 파라미터 결정 기법을 주로-
정채영,송철,이권현,Jung, Chae-Young,Song, Chul,Lee, Kwon-Hyun 한국통신학회 1990 韓國通信學會論文誌 Vol.15 No.4
본 논문은 시각 패턴 인식 기법을 이용하여 보이지 않는 강체의 운동을 해석하고자 한다. 가려져 보이지 않는 강체에 특수 모양의 강체를 부착하여 볼 수 있게 한 다음, 강체의 운동을 비디오 카메라로 포착한다. 모든 운동은 평행 이동과 회전 이동으로 나타낼 수 있다. 그러나 평행 이동도 무한 원점을 중심으로 한 회전 운동으로 표현할 수가 있다. 따라서, 운동 해석은 순간 회전 중심과 회전각을 구하는 것이다. 구현한 알고리즘은 인체의 하악 운동에 적용 시켰다. This paper is an attempt to use vision-pattern recognition technique to analyzation on a hidden rigid body motion. Specially shaped rod, rigidly connected to the hidden body is extended to the ouside of hiding object so that a camera may catch the motion data. Every motion can be described with translatio and rotation. But translation can be explanied with ratation with a infinitly far centroid. Motion analysis is to find the instantaneous centroid and ratation angle. With this theory jaw motion is analyzed in this paper.
난소 종양의 양성과 악성을 감별하기 위한 새로운 점수 체계의 고안
조인숙 ( In Sook Cho ),남계현 ( Kye Hyun Nam ),이해혁 ( Hea Hyuk Lee ),김정식 ( Jung Sik Kim ),김태희 ( Tae Hee Kim ),조희정 ( Hee Jung Cho ),정수호 ( Soo Ho Jung ),이권해 ( Kwon Hae Lee ),배동한 ( Dong Han Bae ) 대한산부인과학회 2006 Obstetrics & Gynecology Science Vol.49 No.8
목적: 이 연구의 목적은 초음파를 이용하여 난소 종양의 양성과 악성을 감별하기 위한 난소 종양 점수 체계의 효용성을 측정하여 새로운 점수 체계의 고안과 그 효용성을 평가하기 위한 것이다. 연구 방법: 난소 종양이 있는 환자 199명을 대상으로 하여 Alcazar, Ferrazi, Sassone, De Priest 및 새로 고안한 점수 체계(scoring system)을 이용하여 양성과 악성을 전향적으로 예측하였다. 악성은 23명이었고, 양성은 176명이었다. 본원에서 도안한 난소 종양의 점수 체계를 수신자 동작 곡선(receiver operation characteristic curve)을 이용하여 구한 절사점(cut-off level)은 11점이었다. 수술 후 병리 진단과 비교하여 각각의 민감도, 특이도, 양성 예측율과 음성 예측율을 구하여 임상적 효용성을 알아보았다. 결과: 본원에서 고안한 점수 체계는 종양의 벽의 두께, 중격의 수, 종양의 부피, 불규칙한 면의 유무, 혈류의 존재, 고음영을 요소로 하였다. 종양의 벽의 두께에 따라 나누어 다른 동일한 요소의 점수를 다르게 하였다. 새로 고안한 점수 체계를 이용하였을 때 민감도와 특이도는 각각 73.9%와 97.7%였으며, 양성 예측율과 음성 예측율은 각각 80.9%와 96.6%였다. 결론: 새로 고안한 점수 체계를 이용하여 측정하였을 때 민감도는 기존의 방법과 비슷하였으나 특이도는 향상되었다. 따라서 난소의 종양의 악성 여부 평가에 유용한 방법으로 사용될 수 있을 것으로 보인다. Objective: The purpose of this study was to design a new scoring system for differentiation between benign and malignant ovarian masses and to assess effectiveness of new scoring system comparing other scoring systems. Methods: This study was based on 199 women who visited Soonchunhyang Hospital for surgery of ovarian mass. Ultrasonography and scoring system based on De Priest, Sassone, Ferrazi and Alcazar was performed the day before operation. Pathologic diagnosis after operation was directly compared with diagnosis of scoring system. The cut-off level of the new index is 11 points. This study was evaluated by sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). Results: Parameters of new scoring system were wall thickness, number of septum, volume of mass, irregularity, vascularity and echogenicity. The new scoring system had sensitivity 73.9%, specificity 97.7% and negative and positive predictive values of 96.6% and 80.9% respectively. Conclusion: Sensitivity of new scoring system was similar to previous ones but specificity of that is higher. Our new scoring system shows better to differentiate benign from malignant ovarian mass than four other scoring systems.
이해혁(Hae Hyeog Lee),이정재(Jeong Jae Lee),남계현(Kae Hyun Nam),이임순(Im Soon Lee),이권해(Kwon Hae Lee),이효환(Hyo Hwan Lee),이석민(Seok Min Lee),정갑인(Kab In Jung),정한우(Han Woo Jung),신정옥(Jeong Ok Shin),구도형(Do Hyoung Koo) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.2
N/A Objective: To evaluate the frequency and obstetric consequences of women with uterine anomalies and correlation between obstetric consequence and congenital uterine anomalies. Materials and Methods: A retrospective study was made on 65 patients with uterine anomalies in order to evaluate the obstetric consequence at department of obstetrics and gynecology, Soonchunhyang University Hospital from January 1994 to June 1997. The diagnosis of uterine anomalies was made with hysterosalpingogram or ultrasonogram, or at the time of cesarean section. The uterine anomalies were classified according to the classification of Buttram and Gibbons and compared the pregnancy outcome for each classification. The obstetric consequences were divided into preterm delivery, premature rupture of membranes, intrauterine growth restriction, and abnormal presentation of fetus. Statistical analysis was carried out using chi-square test, the significance was defined as P < 0.05. Results: 1. The incidence of uterine anomalies accounted for 1.04% (65/6,250 deliveries). 2. The most common uterine anomalies were class III (Uterine didelphys, 47.7%). 3. We noted preterm birth rate (16.9%), premature rupture of membranes rate (20%), intrauterine growth restriction rate (9.2%) in 65 patients. 4. The rate of breech presentation was 41.5% and the mean birth weight was 2,747 gram. 5. When uterine anormalies were present, the incidence of obstetric consequences was significantly increased. Conclusion: We concluded that congenital uterine anomalies were closely related to obstetric consequences, such as preterm, breech presentation, intrauterine growth retardation.