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류우선,김주석,강선형,문희석,성재규,정현용,Woo Sun Rou,Ju Seok Kim,Sun Hyung Kang,Hee Seok Moon,Jae Kyu Sung,Hyun Yong Jeong 대한소화기암연구학회 2018 Journal of digestive cancer reports Vol.6 No.2
Mucinous adenocarcinoma occurs in 1.6-25.4% of patients with colorectal cancer. We report a case of a 27-year-old man with negative findings on initial colonoscopic biopsy, but finally diagnosed with mucinous adenocarcinoma of the colon. After undergoing an abdominal CT due to persistent abdominal pain, he was transferred to our hospital. The abdominal CT showed a diffuse and irregular wall thickening in the distal transverse colon. Due to the edema and stenosis of colonic wall, it was difficult to insert the colonoscope into the proximal region; a biopsy revealed chronic colitis with lymphofollicular hyperplasia. Transverse colectomy and lymph node dissection were performed. The diagnosis was mucinous adenocarcinoma of approximately 20×4.5 cm. Compared to adenocarcinoma, mucinous adenocarcinoma is found in a younger population with an advanced stage and is less responsive to palliative chemotherapy. Therefore, recalcitrant abdominal pain even in young people warrants early detection through appropriate examinations such as abdominal CT and colonoscopy.
Kano Model을 활용한 가상현실 박물관의 VR 영상 디자인 요소를 위한 관객 욕구 분석
류우선,김지홍 한국디자인리서치학회 2019 한국디자인리서치 Vol.4 No.4
Virtual reality(VR) technology is widely applied through features such as immersion and interaction. In particular, museums are becoming an important venue for the utilization of VR technology because of lack of interaction in traditional exhibition. However, prior studies have focused on the technical aspects of digital exhibition and interaction, and the research on design elements reflecting the audience's demand for VR image design of the VR Museum is insufficient. Therefore, this paper is about qualitative research based on the literature research to understand VR image and virtual reality museum, and to materialize the audience's demand for VR image design through the relationship between curator and audience. For the empirical research, the VR image design elements of the virtual reality museum were extracted into 10 types through immersion, interaction, and imagination. F1 is the VR interaction experience, F2 is the theme introduction animation, F3 is the virtual exhibition, F4 is the virtual guide, F5 is the virtual route, F6 is the exhibition introduction, F7 is the information expansion, F8 is the interactive game, F9 is the restoration of the exhibition, F10 The audience's needs were measured by summarizing them as hidden interaction learning. For this purpose, a questionnaire was created using the Kano model, and the VR image design of the Virtual Reality Museum was presented by determining the ranking by measuring the importance of the 10 elements by continuous analysis and Better-worse. Experimental results were: F3> F6> F9> F1> F5> F4> F7> F8> F2> F10. Through the results of this study, the basic theory for VR design of VR museum was presented. 가상현실(VR) 기술은 몰입과 상호작용 등의 특성을 통해 광범하게 적용된다. 특히 박물관은 전통전시 방식에서 상호작용이 부족하므로 VR기술 활용에 중요한 장이 되고 있다. 그런데 선행연구들은 디지털화된 전시 방식과 상호작용을 위한 기술적 측면에 집중되어 VR 박물관의 VR영상 디자인을 위한 관객의 요구를 반영한 디자인 요소에 관한 연구는 미흡한 실정이다. 그러므로 본고는 문헌연구에 의한 질적 연구로 VR영상과 가상현실 박물관에 대하여 파악하여 큐레이터와 관객의 관계를 통해 VR 영상디자인을 위한 관객의 요구를 구체화하였다. 실증적인 연구를 위하여 가상현실에서 몰입감과 상호작용과 상상력을 통하여 가상현실 박물관의 VR영상 디자인 요소를 10가지로 추출하였다. F1은 VR상호작용 체험, F2는 주제 소개용 애니메이션, F3은 가상 전시물, F4는 가상 가이드, F5는 가상 루트, F6은 전시물 소개, F7은 정보 확장, F8은 상호작용 게임 , F9은 전시물 복원, F10은 상호작용 학습으로 정리하여 관객들의 요구를 측정하였다. 이를 위해 Kano모형을 활용하여 설문지를 만들었고 연속분석법과 Better-worse으로 10가지 요소의 중요도를 측정하여 순위를 확정하므로서 가상현실 박물관의 VR 영상디자인 요소를 제시하였다. 실험 결과는 F3> F6≈ F9> F1> F5> F4> F7> F8> F2> F10이었다. 본 연구의 결과를 통해 가상현실 박물관의 VR 영상 콘텐츠 디자인 기획을 위한 근거를 마련하였다.
당질코르티코이드의 투여에 의해 유발된 급성 심근경색증을 동반한 갈색세포종 위기 1예
류우선,정상경,이성윤,이윤정,김동준,김영두,김형윤,장선희,노정현 대한내분비학회 2010 Endocrinology and metabolism Vol.25 No.3
The most common symptoms of pheochromocytoma are paroxysmal or sustained hypertension, or symptoms of paroxysmal adrenergic stimulation such as palpitation, headache, and diaphoresis. These patients can on rare occasion reveal or be complicated with cardiovascular symptoms such as arrhythmia, cardiomyopathy, acute coronary syndrome and cardiogenic shock. These cardiac manifestations of pheochromocytoma may delay the diagnosis, which can cause a catastrophic outcome. A pheochromocytoma crisis is provoked by surgery, anesthesia, exercise and, several drugs and it is known to be an endocrine emergency with mortality as high as 85%. Many classes of drugs are well known to precipitate adverse reactions, but the presentation of pheochromocytoma after the administration of steroid has rarely been reported. We report here on a case of pheochromocytoma crisis with acute myocardial infarction after the patient took prednisolone. Furthermore, we discuss the mechanism of glucocorticoid induced crisis and myocardial infarction in pheochromocytoma patients.
류우선,김주석,강선형,문희석,성재규,정현용 대한상부위장관ㆍ헬리코박터학회 2019 Korean Journal of Helicobacter Upper Gastrointesti Vol.19 No.4
Gastric schwannoma, a rare mesenchymal tumor originating from the schwann cells of peripheral nerves, rarely occurs in the gastrointestinal tract. It accounts for only 0.2% of all gastric tumors and 2~6% of gastric mesenchymal tumors. Gastric schwannoma is observed as a subepithelial tumor on endoscopy; it is covered with normal mucosa, rendering its preoperative differential diagnosis difficult. An asymptomatic 43-year-old woman visited our hospital after a 7-cm ulcerofungating mass was detected in the lesser curvature of the gastric body on gastroscopy. Abdominal CT revealed multiple enlarged lymph nodes, and 18F-fluorodeoxyglucose (FDG) PET demonstrated a subtle uptake of FDG, suggestive of advanced gastric cancer. After three failed attempts of endoscopic biopsy, the patient underwent total gastrectomy with lymphadenectomy and was subsequently diagnosed with gastric schwannoma. Herein, we report this case with a literature review.