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Diagnosis of Articular Disc Perforation: A Case Series
고다은,남현,심영주,강진규 대한안면통증∙구강내과학회 2019 Journal of Oral Medicine and Pain Vol.44 No.4
Perforation of articular disc of temporomandibular joint is a unusual condition and diagnosedthrough magnetic resonance imaging (MRI), arthrography or arthroscopic surgery. We attempted to investigate the suspicious findings of articular disc perforation throughexamination commonly used in temporomandibular disorder (TMD) patients. We retrospectivelyanalyzed the clinical and imaging findings of five TMD patients whose articular discswere perforated based on MRI. The most meaningful finding was the abnormal width of thejoint space in cone-beam computed tomography. Thus, the clinician should perform a thoroughassessment of the joint space in TMD patients and conduct additional investigation todetermine what caused the abnormal joint space.
고다은,윤정훈 대한구강악안면병리학회 2020 대한구강악안면병리학회지 Vol.44 No.6
Juvenile xanthogranuloma (JXG) is an unusual histiocytosis by an unknown cause, which rarely occurs in the oral cavity. Its clinical presentation is non-specific, so prevents to differentiate it from other oral mucosal diseases. In addition, limited oral JXG cases have been reported so far, and clinical features and therapy of oral JXG are more and less different from cutaneous JXG. The purpose of this report is to present a case of JXG on the dorsal tongue and a review of relevant literature.
수정된 후기수용모형(PAM)을 적용한 AR도슨트 해설서비스품질이 지속사용의도에 미치는 영향: 스마트관광도시 인천 개항장 일대 관광자를 중심으로
고다은,정철 한국관광학회 2023 관광학연구 Vol.47 No.6
최근 다수의 관광지에서 AR도슨트 해설서비스가 확산하고 있다. 특히, AR도슨트 해설서비스는 첨단정보통신기술을 관광 서비스에 접목해 관광자들에게 편리하고 차별화된 관광 서비스를 제공하기 위해 조성 사업으로 추진되고 있는스마트관광도시의 주요 콘텐츠로 관광자들에게 풍부한 경험을 안겨주고 있다. AR도슨트 해설서비스는 기존에 미술관과박물관, 관광지에서 운영되고 있던 대면 도슨트와 문화관광해설사의 해설서비스에 몰입감과 현실감을 특징으로 하는 신기술인 AR기술을 접목한 관광 콘텐츠로 대다수가 모바일 앱의 형태로 제공되고 있으며 이에 따라 기존의 해설서비스와는차별화된 특징을 가지고 있다. 이 연구는 AR도슨트 해설서비스 이용자를 대상으로 AR도슨트 해설 서비스품질을 규명하고, 후기수용모형을 수정하여 AR도슨트 해설서비스 지속사용의도의 결정요인을 규명하고자 하였다. 연구대상지인 인천개항장 일대는 국내 최초의 스마트 관광도시로 선정된 인천의 유명 관광지로 풍부한 역사⋅문화 자원을 가지고 있다. AR도슨트 해설서비스는 개항장 일대 12곳에서 모바일 앱을 이용한 실감형 콘텐츠로 제공되고 있다. 연구 진행을 위해인천 차이나타운 개항장 일대에서 AR도슨트 해설서비스를 경험한 관광자를 대상으로 설문조사를 진행했으며, 총 190개의 유효응답을 바탕으로 자료 분석을 진행하였다. 연구 분석 결과, 7개의 가설 중에 3개의 가설이 기각되었다. AR도슨트해설서비스품질 중 편리성과 정보서비스 정확성이 지각된 유용성에 긍정적인 영향을 미치는 것으로 나타났다. 그러나정보의 적시성과 현존성은 지각된 유용성에 긍정적인 영향을 미치지 않는다는 것을 알 수 있었다. 지각된 유용성은 만족도에는 긍정적인 영향을 미쳤으나 지속사용의도에는 영향을 미치지 않았다. 마지막으로 만족도와 지속사용의도 간에 긍정적인 영향 관계를 확인하였다. 따라서 이 연구는 최근 박물관이나 미술관을 포함하여 관광지에서 확산하고 있는 AR도슨트해설서비스를 후기수용모형을 바탕으로 AR도슨트 해설서비스 품질을 설명하였으며 만족도와 지속사용의도에 미치는 영향을 규명하였다. 이 연구에서 도출된 결과를 토대로 AR도슨트 해설서비스를 구축하고자 하는 스마트 관광도시에 학술적, 실무적 시사점을 제시하였다. Recently, AR docent services have become increasingly common in many tourist destinations. In particular, AR docent services are often a key feature of smart tourism cities that try to provide convenient and differentiated services for tourists by integrating advanced information and communication technology into tourism services. AR docent services combine immersive AR technology with the commentary service of face-to-face docents and cultural tourism commentators usually found in art galleries, museums, and other tourist attractions. Based on the Extended Post Acceptance Model, this study aimed to examine the qualities of AR docent services recognized by tourists using the services and the determinants of their intention to continue using the services. The Incheon Opening Port area was selected as the research context. The area is located in Incheon, the first smart tourism city designated in South Korea, and is known for its abundant historical and cultural resources (e.g., Incheon Chinatown). AR docent services are provided at 12 locations around the Opening Port area via mobile apps. To implement the study, a survey was conducted on tourists who experienced using AR docent services around the area (e.g., Incheon Chinatown), and data analysis included a total of 190 effective responses. The empirical analysis rejected three of the seven hypotheses. Among the AR docent service qualities, it was confirmed that Convenience and Information Service Accuracy had positive effects on the perceived usefulness. However, Information Timeliness and Information Currency did not have positive effects on perceived usefulness. Perceived usefulness had a positive effect on satisfaction, but did not affect the continuance intention. Finally, a positive relationship between satisfaction and continuance intention was confirmed. Therefore, this study explored the qualities of AR docent services that have recently been spreading in tourist destinations and identified their impacts on satisfaction and continuance intention. Based on these findings, theoretical and practical implications can help smart tourism cities that want to establish AR docent services.
실외 XR Metaverse 지원을 위한 UAV 통신 궤도 최적화 및 서비스 영역에 따른 성능 비교
고다은(Da-Eun Ko),정종문(Chung, Jong-Moon) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
본 논문은 실외의 확장현실 (XR) 어플리케이션 지원을 위한 UAV 통신의 궤도 연구를 진행하였다. XR 어플리케이션에 따라 UAV 운용 가능 지역이 달라지기에 이 영역의 형태에 따라 UAV 궤도 최적화가 어떻게 변화하는지 연구하였다. UAV 공역은 직사각형으로 가정하였고, 직사각형의 가로 세로 변의 비율에 따라 UAV 최적화가 어떻게 진행되는지 실험 결과를 분석하였다.
박정현,방윤식,고다은,이선영,이승훈 대한마취통증의학회 2019 Anesthesia and pain medicine Vol.14 No.2
Acute fatty liver of pregnancy (AFLP) is unusual but can potentially progress to overwhelming liver failure, resulting in maternal and fetal death. AFLP is characterized by the accumulation of microvesicular fat within hepatocytes. We report the case of a 37-yearold woman at 36 weeks’ gestation with a twin pregnancy who was admitted with the diagnosis of intrauterine fetal death of one baby. The patient showed profile of AFLP on her laboratory findings and underwent emergency cesarean section. Then she progressed to cryptogenic fulminant hepatic failure and underwent successful orthotopic liver transplantation on 9th day of admission. This case demonstrates that liver transplantation is a feasible therapeutic option for the treatment of patients with this condition.
류창수,사공정현,안은희,김정오,고다은,김지향,이우식,김남근 한국유전학회 2019 Genes & Genomics Vol.41 No.1
This study was purposed to investigate whether genetic polymorphisms in the function of stop-gain are associated with a fetal or placental development play roles and a development of idiopathic recurrent pregnancy loss (RPL) in Korean females. Three stop-gain polymorphisms were selected using next-generation sequencing screening, which allows for the rigorous examination and discovery of previously uncharacterized stop-gain genes and stop-gain expression profiles. Accordingly, we investigated the association of stop-gain polymorphisms in Korean women with RPL. Three functional polymorphisms in the TAS2R46G>A (rs2708381), OR4C16G>A (rs1459101), and OR4X1A>T (rs10838851) genes were genotyped using polymerase chain reaction (PCR)—restriction fragment length polymorphism assays and real-time PCR analysis. We determined that the OR4C16G>A polymorphism was associated with idiopathic RPL in Korean women (Adjusted odds ratio [AOR] 1.782; 95% confidence interval [CI] 1.004–3.163; P = 0.048, and AOR 1.766; 95% CI 1.020–3.059; P = 0.042). In addition, the prevalence of RPL was increased in women with the OR4C16GA + AA genotype and blood coagulation measures of prothrombin time (PT) > 10.4 s (AOR 8.292; 95% CI 2.744–25.054). We suggest that the OR4C16G>A polymorphism might serve as a clinically useful biomarker for the development, prevention, and prognosis of RPL.