Korean Journal of Gastrointestinal Endoscopy 2009;39(1): 22-29.
방송용 위성시스템과 디지털 영상 전송시스템을 이용한 원격강의의 효과 평가: 참가자 설문조사로 비교
윤재훈ㆍ함준수ㆍ이항락ㆍ최호순ㆍ박용진*
한양대학교 의과대학 내과학교실, *한양대학교 공과대학 전자공학과
Comparison of a Digital Video Transfer System with a Satellite Broadcasting System Used in a Teleconference: From the Trainee Point of View
Jai Hoon Yoon, M.D., Joon Soo Hahm, M.D., Hang Lak Lee, M.D., Ho Soon Choi, M.D. and Yong Jin Park, Ph.D.*
Department of Internal Medicine, College of Medicine, *Division of Electrical Engineering, College of Engineering, Hanyang University, Seoul, Korea
Abstract
Background/Aims: Telemedicine is a useful tool for remote education to overcome limitations of location. We have shared medical knowledge by the use of a real-time, high quality digital video transfer system (DVTS). The study aim was to evaluate the use of the DVTS by viewer questionnaire.
Methods: After an endoscopic live demonstration using DVTS and satellite broadcasting system (SBS), questions were provided for the degree of satisfaction about image and sound of the presentation. A questionnaire was composed of 11 questions concerning factors such as a comparison of image quality between the two systems. The preference between DVTS with SBS was analyzed.
Results: For image quality, SBS was more preferable than DVTS (65.6% versus 16.7%). However, 16.7% found no difference between the use of DVTS and SBS. For the time delay between the image and sound, 62.5% preferred SBS and 11.5% preferred DVTS. The satisfaction for combining DVTS with SBS were 68% as good and 22% as very good.
Conclusions: We have demonstrated the feasibility of telemedicine by the demonstration of a satisfactory teleconference, although DVTS was utilized as an assistant tool. DVTS should prove to be a promising tool as a useful and economic means to provide remote medicine. (Korean J Gastrointest Endosc 2009;39: 22-29)
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