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아킬레스건이 노출된 족관절 연부조직 결손에 대한 역행성 표재 비복동맥 피판술
최영락,이승용,이순철,이호재,한수홍,Choi, Young-Rak,Lee, Seung-Yong,Lee, Soon-Chul,Lee, Ho-Jae,Han, Soo-Hong 대한미세수술학회 2012 Archives of reconstructive microsurgery Vol.21 No.2
Purpose: Soft tissue defect on posterior side of heel exposing Achilles tendon is vulnerable and require thin flap to improve aesthetic and functional results. Reverse superficial sural artery flap is simple and fast procedure, and it can preserves major arteries, supplies reliable constant blood, causes less donor site complication. Authors reviewed our cases and report the clinical results. Materials and Methods: Nine cases of soft tissue defects on the posterior side of heel exposing Achilles tendon were treated with distally based superficial sural artery flap. There were 6 male and 3 female and mean age was 48.4 years. The size of flap was from $4{\times}4cm$ to $10{\times}15cm$ and mean follow-up period was 23 months. Flap survival, postoperative complications were evaluated. Results: All flaps were survived completely without necrosis. There was one case of partial wound dehiscence that needed debridement and repair, and other one case had recurrent discharge that was healed after removal of calcaneal plate. All patient showed acceptable range of ankle motion. Conclusion: Authors suggest that the reverse superficial sural artery flap could be one of the useful treatment options for the soft tissue defect on posterior side of heel exposing Achilles tendon.
과민성 대장증후군의 병인론에 대한 고찰: 생물정신사회 모델의 이해와 한계
최영락,이상익,김시경,Choi, Young-Rak,Lee, Sang-Ick,Kim, Sie-Kyeong 한국정신신체의학회 2005 정신신체의학 Vol.13 No.1
연구목적 : 저자는 과민성 대장증후군을 가진 환자들의 병인론에 대한 문헌고찰을 통해 과민성 대장증후군을 생물정신사회 모델로 이해하고 그 한계를 알아보고자 한다. 방법: 저자는 1977년부터 2003년까지의 과민성 대장증후군에 대해 Pub-Med와 Kisep에 등록된 문헌을 고찰하였다. 결과: 과민성 대장증후군은 단일 병인론으로 설명될 수 없으며, 생물정신사회 모델은 과민성 대장증후군의 이해에 대해 새로운 관점을 제공하였다. 과민성 대장증후군에서 생물정신사회 모델의 생물학적 요인, 정신적 요인, 사회적 요인들은 서로 상호 작용하고 있고 각기 다른 정도로 기여하며, 영향을 미치고 있다. 세 요인들은 과민성 대장증후군에서 증상의 형성, 악화. 지속에 영향을 미치고 있으며 병인론, 증상경과, 치료결과에 중요한 역할을 하고 있다. 그러나 세 요인들을 치료에 적용하는 데는 많은 어려움을 가지고 있다. 결론: 생물정신사회 모델은 과민성 대장증후군을 가진 환자들을 이해하는데 기여하였으나, 치료적 적용에는 한계를 보이고 있다. 생물정신사회 모델은 실재적인 활용에 많은 한계가 있으므로 생물정신사회적 관점에 대한 보다 진보된 연구가 필요할 것이다. Objectives The author aimed to investigate and understand the limitations of the biopsychosocial model for irritable bowel syndrome by reviewing the priorly reported etiologies in patients with irritable bowel syndrome(IBS). Methods The author reviewed all possible previous studies related to the investigation regarding IBS in the Pub-med & Kisep database from 1977 to 2003. Results : It was impossible that patients with IBS were diagnosed and traced to a single etiology. So, the biopsychosocial model was suggested to be a new paradigm for IBS. Biological, psychological and social factors are interplaying and contributing to the biopsychosocial model affecting each other, thus affecting the biopsychosocial model. Three factors were necessary for understanding the etiology, process of symptoms and clinical outcome of IBS by virtue of their key roles in the developing, precipitating and perpetuating of the illness. However, any treatment application for those three factors faces many obstacles to be overcome. Conclusion : The biopsychosocial model contributed relatively much to the explanation but little to the treatment application of patients with IBS. Therefore, because there seems to be little practical use at present, the author believes biopsychosocial aspects should be researched further.
최영락(Choi Young Rak),이종신(Lee Jong Sin),윤희천(Yun Hee Cheon) 한국지적학회 2014 한국지적학회지 Vol.30 No.3
본 연구는 산림탄소상쇄 제도가 운영됨에 따른 토지의 경계를 이용하여 산림의 소유권별 산림탄소등록부의 등록방법과 영상정보를 활용한 산림의 정확한 탄소흡수량을 산정하기 위한 방안을 제시하는데 목적이 있다. 기존 탄소흡수량 산정방법으로는 통계자료를 이용한 방법과 영상자료를 이용한 방법, LiDAR 자료를 이용한 방법 등이 있으나 정확한 탄소흡수량을 산정할 수 없었다. 따라서 불확실성이 있는 통계적 자료나 현장 센서 등을 통해 직접 측정하는 방법보다 LiDAR 및 영상정보를 이용한 최적의 탄소흡수량 산정방법을 연구할 필요가 있다. 본 연구결과 LiDAR와 디지털항공사진, 초분광영상을 이용할 경우 산림의 정확한 분류 및 정량화가 가능하다는 것을 알 수 있었으며 초분광영상을 이용하면 다양한 수종분류가 가능함을 알 수 있었다. 지형, 산림자원의 특성, 데이터 용량 및 처리속도 등을 고려 할 때 최대 7점/㎡의 고밀도 LiDAR 자료를 이용할 경우 산림자원의 정확한 수고 및 수관을 추출할 수 있음을 알 수 있었다. 산림자원을 지번별로 정확히 추출함으로써 탄소흡수량등록부에 대상지에 대한 면적정보과 함께 수종별 평균 수관의 크기와, 평균수고, 평균수령, 단위면적 탄소 흡향 등을 등록 할 수 있음을 알 수 있었다. 표본추출 방법과 비교하여 산림 면적이 총 19.7%, 전체 탄소 흡수량이 19.2%, 단위 면적당 흡수량이 0.9%의 차이가 발생되며, 이는 탄소흡수량으로 인정받을 수 있는 산림에 대한 국제적 기준에 맞게 정량화시킴으로써 좀 더 정확한 탄소흡수량을 산정할 수 있었다. The purpose of this study is to quantify the information on forest using spatial information, such as precision LiDAR data, digital aerial photography images, hyperspectral images, etc., for devising methods to calculate accurate carbon absorption. Methods using statistical data or image data, or using LiDAR data were used in the past, yet they were not capable of calculating accurate carbon absorption. Thus it is needed to study the optimal methods for calculating carbon absorption using LiDAR data or image data rather than using statistical data with uncertainty or sensors installed on sites for direct measuring. The results of this study have suggested the followings: the use of LiDAR data or digital aerial photography or hyperspectral images facilitates the accurate classification and quantification of forest, and the use of hyperspectral images facilitates the classification of a wide range of tree species. It was also confirmed that, when maximum 7points/㎡ high density LiDAR data is used, accurate tree height and crown in the forest resources can be extracted, with geography, nature of forest resources, data capacity and processing speed in consideration. The forest resources can be accurately extracted for the area of the target area, the average tree size, the average height, age of the average tree, it was possible to know that it is able to register and carbon absorption. Compared with the sampling method, differences in total 19.7% of forest area, 19.2% of total carbon absorption, and 0.9% of carbon absorption by unit area occurred, indicating that more accurate carbon absorption can be calculated by quantifying the carbon absorption to the international standards
최영낙,최영락,서정호,이호승,김상우,정재중,Choi, Young-Nak,Choi, Young-Rak,Seo, Jeong-Ho,Lee, Ho-Seong,Kim, Sang-Woo,Jeong, Jae-Jung 대한족부족관절학회 2011 대한족부족관절학회지 Vol.15 No.4
Purpose: To evaluate the results of conservative treatment of zone I, II $5^{th}$ metatarsal base fracture. Materials and Methods: Between May 2004 and June 2010, a total of 58 patients of zone I, II $5^{th}$ metatarsal base fractures were included in this study. The mean length of follow-up was 13.5 months (12~36 months). All of the patients were treated with full-weight-bearing short leg cast immobilization for 4 weeks and wooden sole shoes for 4 weeks. The results were evaluated about the radiographic union, the midfoot scale of American Orthopaedic Foot and Ankle Society (AOFAS), the tenderness on fracture site and other complications. Results: All patients were able to return to their prior levels of activity. The mean time for union as shown on radiographs was 45.5 days, and the mean midfoot scale of AOFAS was 99.7 points. There were no nonunions or refractures during the follow-up. Conclusion: The conservative treatment with full-weight-bearing short leg cast and wooden sole shoes seems to give good results for zone I, II $5^{th}$ metatarsal base fracture.