http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Massive Hemorrhage Facial Fracture Patient Treated by Embolization
김무현,유재홍,김승수,양완석 대한두개안면성형외과학회 2016 Archives of Craniofacial Surgery Vol.17 No.1
Major maxillofacial bone injury itself can be life threatening from both cardiovascular point of view, as well as airway obstruction. Significant hemorrhage from facial fracture is an uncommon occurrence, and there is little in the literature to guide the management of these patients. We report a 73-year-old male driver who was transported to our hospital after a motor vehicle collision. The patient was hypotensive and tachycardic at presentation and required active fluid resuscitation and transfusion. The patient was intubated to protect the airway. All external attempts to control the bleeding, from packing to fracture reduction, were unsuccessful. Emergency angiogram revealed the bleeding to originate from terminal branches of the sphenopalatine artery, which were embolized. This was associated with cessation of bleeding and stabilization of vital signs. Despite the age and severity of injury, the patient recovered well and was discharged home at 3 months with full employment. In facial trauma patients with intractable bleeding, transcatheter arterial embolization should be considered early in the course of management to decrease mortality rate.
김무현,정혁,김원제,김명미 대한안과학회 2018 Korean Journal of Ophthalmology Vol.32 No.1
To evaluate the effects of the surgical assistant’s level of resident training on operation time and surgicaloutcome in the surgical treatment of intermittent exotropia. Methods: This study included 456 patients with intermittent exotropia who underwent lateral rectus recessionand medial rectus resection and were followed up for 24 months after surgery. The patients were divided intotwo groups according to the surgical assistant’s level of resident training: group F (surgery assisted by a firstyearresident [n = 198]) and group S (surgery assisted by a second-, third-, or fourth-year resident [n = 258]). The operation time and surgical outcomes (postoperative exodeviation and the number of patients who underwenta second operation) were compared between the two groups. Results: The average operation times in groups F and S were 36.54 ± 7.4 and 37.34 ± 9.94 minutes, respectively(p = 0.33). Immediate postoperative exodeviation was higher in group F (0.79 ± 3.82 prism diopters) than ingroup S (0.38 ± 3.75 prism diopters). However, repeated-measures analysis of variance revealed no significantdifference in exodeviation between the two groups during the 24-month follow-up period (p = 0.45). A secondoperation was performed in 29.3% (58 / 198) of the patients in group F, and in 32.2% (83 / 258) of those ingroup S (p = 0.51). Conclusions: No significant difference in operation time was observed when we compared the effects of thelevel of resident training in the surgical treatment of intermittent exotropia. Although the immediate postoperativeexodeviation was higher in patients who had undergone surgery assisted by a first-year resident, the surgicaloutcome during the 24-month follow-up was not significantly different.
스테레오 비전을 이용한 물체의 위치정보 추출 알고리즘 개발
김무현,이지현,이승규,김영희,박무훈,Kim, Moo-Hyun,Lee, Ji-Hyun,Lee, Seung-Kuy,Kim, Young-Hee,Park, Mu-Hun 한국정보통신학회 2010 한국정보통신학회논문지 Vol.14 No.8
무인 운반설비의 자동화 시스템 개발의 한 부분으로써 Stereo vision system에 관한 많은 연구가 진행되고 있다. Stereo vision system에서는 영상을 통해 특정 물체를 검색하고 검색된 물체 정보를 기반으로 Edge를 추출하고, 추출된 Edge를 이용하여 물체의 위치적 특징을 찾고 무인크레인이 이동해야할 위치좌표를 전달한다. 본 논문에서는 실제 산업현장에 가장 보편적인 형상인 Slab와 Coil을 기준으로 두 대의 CCD camera를 이용하여 물체의 형상을 인식하고, 무인크레인의 Hookblock부분이 물체의 중심점을 찾는 알고리즘을 개발하였다. 본 논문에서는 Stereo vision system의 카메라 설치 위치에 따라 직교식과 수평식으로 2가지의 방식을 제안, 실험을 하였다. 본 논문에서 제안한 알고리즘은 무인 운반설비의 자동화 시스템 개발에 도움이 될 것으로 기대된다. As factory automation is getting popular, there has been a lot of research concerned with stereo vision systems as a part of an automation system with unmanned moving equipment. In the stereo vision system, information about an object could be gained by searching through images. Edges which are based on the information about an object are used to find the position of the object and send a message of its position coordinate to a unmanned crain. This thesis proposes an algorithm to find the center point of the object's surface which is connected to the unmanned crain's hookblock, and to recognize the shape of the object by using two CCD cameras. At first, getting information about the edges, and distinguishing each edge's characteristics depend on user's option, and then find the location information by a set of positions that are proposed. This thesis is expected to be devoted to the development of an automation system of unmanned moving equipment.