• Journal of the Korean Society of Radiology
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• v.17 no.7
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• pp.1109-1114
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• 2023

This study investigated the effects of utilizing 3D printed teaching aids on academic achievement and learning motivation in a non-face-to-face learning environment during the COVID-19 pandemic. The study was divided into an experimental and a comparison group that applied traditional lecture-based teaching and self-directed learning using 3D printed teaching aids and videos. The results of the study showed that the experimental group using 3D printed brain puzzles improved their academic performance compared to the comparison group using traditional lectures. This may be due to the fact that visual and experiential learning helped students to acquire knowledge on their own. The brain puzzles provided an interesting learning experience for the students, and their overall satisfaction with the class was also positive. These results indicate that teaching with teaching aids can increase students' motivation to learn and improve their academic performance. Therefore, the active introduction of 3D printed teaching aids in the non-face-to-face learning environment caused by COVID-19 is expected to improve the quality of education through innovation in learner-centered teaching methods.

• Journal of Digital Convergence
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• v.18 no.6
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• pp.479-493
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• 2020

Outbreak of COVID-19 originated from China resulted significantly high casualties and social and economic damages. Currently the major countries see importance of accurate prediction of originating trend to prevent the spread of infectious disease and AI is actively utilized when establishing the system. Therefore this study has comprehended the status of utilizing the AI in overseas and made comparison and analysis with domestic status. It derived the necessity to establish national control tower based on One Health to respond to infectious disease to effectively utilize AI and suggested to establish higher organization, Medical Big Data Governance, to respond to the infectious disease. It is necessary to conduct further study to utilize the results and suggestions derived from this study into the policy and if the suggestions are reflected to improve institutional imperfection, it will be positively used for prevention of the spreading infectious disease and utilizing medical Big Data.

• Journal of the Korean Orthopaedic Association
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• v.56 no.5
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• pp.450-454
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• 2021

A 75-year-old male patient without any significant medical and habitual risk factors for acute atherosclerosis obliterans except for hypertension was diagnosed with coronavirus disease 2019 with dyspnea, coughing, and mild fever. After a week of hospitalization, he complained of right foot pain and numbness. The symptoms were aggravated during the next week, resulting in a complete toe color change and loss of dorsalis artery pulse. Enhanced 3-dimensional computed tomography angiography revealed thrombus formation in the right common iliac artery and a loss of blood flow below the popliteal artery on both sides. The patient underwent percutaneous balloon angioplasty with stent insertion followed by medical therapy for anticoagulation. The clinical symptoms immediately were improved after the intervention, but the great toe necrosis was not recovered. Finally, amputation of the great toe was performed.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.19 no.5
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• pp.106-118
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• 2020

This study examined the impact of COVID-19 on traffic demand (Average Daily Traffic : ADT) by analyzing the available data on highway traffic volume and the spread of COVID-19 cases in Korea. This study used the data from 228 permanent traffic counts (PTCs) on highways from January to May of 2019 and 2020 to analyze the change in ADT. The first cases of infection in Korea occurred on January 20, 2020, and the maximum daily number of infections was 909 on February 29. On April 30, 2020, the daily number of infections decreased to four. The ADT decreased by 3.3% due to the impact of COVID-19. Considering that the traffic volume has increased 2.3% annually over the past decade, the actual decrease in ADT due to the COVID-19 is estimated to be 5.6% (3.3% + 2.3%). The ADT for weekends decreased significantly, compared to during the week. An analysis of the changes in ADT according to the road type revealed decreases in the following: urban roads -4.6%, rural roads -3.2%, and recreational roads -0.7%. Urban roads decreased the most, and tourist roads decreased the least.

• Journal of the Korean Society of Radiology
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• v.81 no.3
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• pp.608-609
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• 2020

• Journal of the Korean Society of Radiology
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• v.81 no.6
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• pp.1334-1347
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• 2020

Coronavirus disease (COVID-19) has threatened public health as a global pandemic. Chest CT and radiography are crucial in managing COVID-19 in addition to reverse transcription-polymerase chain reaction, which is the gold standard for COVID-19 diagnosis. This is a review of the current status of the use of chest CT and radiography in COVID-19 diagnosis and management and anㄷ introduction of early representative studies on the application of artificial intelligence to chest CT and radiography. The authors also share their experiences to provide insights into the future value of artificial intelligence.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.602-613
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• 2022

This study was performed to identify the factors affecting 'the organizational culture for infection control', 'the resource support', 'the knowledge about COVID-19', and 'the resilience' among hospital nurses on the performance of COVID-19 infection control. A total of 150 nurses, registered in Korea, participated in the current study. The data were collected through self-report questionnaires. From 27th July to 10th August, 2022, 147 questionnairesout of 150 were collected. In multiple regression analysis, 'the resource support', 'the knowledge about COVID-19' and 'the resilience' were analyzed as significant factors in performing of the infection control for COVID-19 (β = 0.68, p < .001, β = 0.12, p = .023 and β = 0.20, p = .005 respectively). For improving the nurses' performance of infection control against Coronavirus Disease 2019(COVID-19) during the pandemic, it is necessary to develop and evaluate the programs through the organizational support and strategies to improve individual knowledge.

• Health Policy and Management
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• v.32 no.3
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• pp.330-333
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• 2022

Korea's quarantine response to the novel coronavirus (coronavirus disease 2019 [COVID-19]) pandemic is based on the sacrifice of health professionals, especially public health doctors (PHDs) who were called out first and put in the first place in the country. PHDs performed major quarantine tasks, such as collecting samples from screening clinics and epidemiological investigations, in various parts of the country, including the Daegu area, where the first large-scale COVID-19 confirmed cases in Korea and explosively increased. Because of their position as fixed-term civil servants, however, PHDs' professionalism as doctors was ignored, and they were not properly compensated for their work. They were also exposed to problems such as a high risk of infection, mental suffering, and various human rights violations. We must prepare concrete measures to improve the fundamental treatment of PHDs and protect their human rights in order to prepare for a possible infectious disease pandemic in the future.

• Journal of the Korean Society of Radiology
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• v.85 no.3
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• pp.682-690
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• 2024

Acute necrotizing encephalopathy (ANE) is a rare immune-mediated complication of a viral infection commonly involving the bilateral thalamus and has been reported mainly in children. Here, we describe the MRI findings of coronavirus disease 2019 (COVID-19)-associated ANE in two pediatric patients, including a 7-year-old girl with fever and mental change, and a 6-year-old girl with fever and generalized seizures. Brain MRI revealed symmetrical T2 fluid attenuated inversion recovery high-signal intensity lesions in the bilateral thalamus with central hemorrhage. In one patient, the thalamic lesions showed a tri-laminar pattern on the apparent diffusion coefficient map. This report emphasizes the importance of creating awareness regarding these findings in patients with COVID-19, particularly in children with severe neurological symptoms. Furthermore, it provides a literature review of several documented cases of COVID-19 presenting with bilateral thalamic hemorrhagic necrosis, suggesting a diagnosis of ANE.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.243-244
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• 2022

본 연구는 코로나-19로 인해 아프리카 국가들 중 1인당 사망자수와 케이스 수 그리고 환경적 요인과 의료 환경 요인을 데이터베이스화하여 다각적인 방면에서 측정하고 분석하였다. 코로나로 인해 사망자수가 증가하였으나 무엇이 가장 영향을 끼친 요인인지에 대해서 아직 정확히 밝혀진 바가 없다. 또한, 코로나 특성상 하나의 요인이 아닌 여러 요인이 혼합적으로 작용하여 일어나기 때문에, 여러 상황을 가정하여 외부 환경과 의료 환경을 모두 분석하였다. 이를 통해 요인을 확인하고 요인이 없다면 향후 다른 요인을 밝혀내기 위해 필요한 자료로 사용될 것이며 앞으로 각 국가별로 정책을 실행할 때 이를 이용해 '위드 코로나', '폐쇄 정책' 등을 실시할 수 있을 것으로 기대된다.