http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전복강경간좌외측구역절제술이 표준 술식으로 정착되기까지의 경험
이동식(Dong Shik Lee),최미란(Mei Lan Cui),김홍진(Hong Jin Kim),윤성수(Sung Su Yun) 한국간담췌외과학회 2010 한국간담췌외과학회지 Vol.14 No.3
Purpose: The aim of this study was to present our experience before establishing laparoscopic left lateral sectionectomy (LLLS) of the liver as a standard procedure, and to show efficacy of a totally LLLS compared to an open left lateral sectionectomy (OLLS). Methods: We retrospectively analyzed and compared clinical outcomes (operation time, blood loss, hospital stay, complication rate, etc) for 29 patients who underwent LLLS and 27 patients who underwent OLLS between January, 2002 and December, 2009. To see the learning curve for LLLS, we arbitrarily divided the LLLSs we did into an early group (ELLLS) and a late group (LLLLS) based on when they were operated on relative to case number 14. Results: Mean operative times for the ELLLS, LLLLS and OLLS groups were 269.7±102.6, 210.0±47.9 and 289.1±72.8 minutes, respectively. Mean operative time was significantly shorter (p<0.05) in the LLLLS than the OLLS group. Mean intra-operative blood loss was also less in the LLLLS group than the OLLS group (80.00±224.2 ml vs. 195.15±405.4 ml). Post-operative hospital stay was shorter in the LLLLS group than the OLLS group (9.9±4.0 versus 16.9±9.1, p=0.071). Conclusion: The totally LLLS is a safe, feasible treatment option that can be a standard procedure with better outcomes in selected patients after an initial learning curve.
이동식(Dong-Shik Lee),안종필(Jong-pil Ahn),김영모(Young-Mo Kim) 한국정보기술학회 2011 Proceedings of KIIT Conference Vol.2011 No.5
Region of interest (ROI) 부호화 기술은 중요한 정보가 저장될 때 영상 데이터를 효과적으로 압축할 뿐만 아니라 원격 영상의 압축에도 적합하다. 본 논문은 새로운 정지 영상 압축 구조를 제안하고, 이 구조를 사용하여 ROI 압축에 적용한다. 제안하는 알고리즘은 정지 영상 압축을 위해서 쿼드트리를 기반으로 형태 부화와 우세 값을 사용하는 새로운 구조를 가진다. 제안하는 구조에서 영역에 따라 비트 플레인(bitplane)을 선택적으로 전송하여 ROI 부호화를 구현한다. 제안하는 쿼드트리 구조가 가지는 압축 성능과 기존 쿼드트리가 가지는 다중 해상도 특성과 계층적인 특성을 이용하여 ROI 압축에 적용한다. Region of Interest (ROI) coding be appropriate for efficient compression as well as remote image compression when an important data is saved. This paper proposes the new representation of image which is used for ROI coding. The proposed algorithm has a new structure which has type code and dominant value based on quadtree for image compression. The bitplanes to be sent are selected according to region in order to carry out ROI coding. The compression efficiency of the proposed quadtree, and a multi-resolution and a hierarchical feature are adopted in ROI coding.