Korean J Gastrointest Endosc > Volume 39(1); 2009 > Article
Korean Journal of Gastrointestinal Endoscopy 2009;39(1): 22-29.
방송용 위성시스템과 디지털 영상 전송시스템을 이용한 원격강의의 효과 평가: 참가자 설문조사로 비교
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

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.
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.
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.
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)
Key Words: Telemedicine, Network, Medical education
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