title: [Telemedicine with digital video transport system].
abstract: OBJECTIVE
  The growth of technology based on internet protocol has affected on the informatics and automatic controls of medical fields. The aim of this study was to establish the telemedical educational system by developing the high quality image transfer using the DVTS (digital video transmission system) on the high-speed internet network.
  
  
  METHODS
  Using telemedicine, we were able to send surgical images not only to domestic areas but also to international area. Moreover, we could discuss the condition of surgical procedures in the operation room and seminar room. The Korean-Japan cable network (KJCN) was structured in the submarine between Busan and Fukuoka. On the other hand, the Korea advanced research network (KOREN) was used to connect between Busan and Seoul. To link the image between the Hanyang University Hospital in Seoul and Kyushu University Hospital in Japan, we started teleconference system and recorded image-streaming system with DVTS on the circumstance with IPv4 network.
  
  
  RESULTS
  Two operative cases were transmitted successfully. We could keep enough bandwidth of 60 Mbps for two-line transmission. The quality of transmitted moving image had no frame loss with the rate 30 per second. The sound was also clear and the time delay was less than 0.3 sec.
  
  
  CONCLUSIONS
  Our study has demonstrated the feasibility of domestic and international telemedicine. We have established an international medical network with high-quality video transmission over internet protocol. It is easy to perform, reliable, and also economical. Thus, it will be a promising tool in remote medicine for worldwide telemedical communication in the future.
authors.affiliation: Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea. hamjs@hanyang.ac.kr
authors.forename: Joon Soo
authors.initials: JS
authors.lastname: Hahm
authors.forename: Shuji
authors.initials: S
authors.lastname: Shimizu
authors.forename: Naoki
authors.initials: N
authors.lastname: Nakashima
authors.forename: Tae Jun
authors.initials: TJ
authors.lastname: Byun
authors.forename: Hang Lak
authors.initials: HL
authors.lastname: Lee
authors.forename: Ho Soon
authors.initials: HS
authors.lastname: Choi
authors.forename: Yong
authors.initials: Y
authors.lastname: Ko
authors.forename: Kyeong Geun
authors.initials: KG
authors.lastname: Lee
authors.forename: Sun Il
authors.initials: SI
authors.lastname: Kim
authors.forename: Tae Eun
authors.initials: TE
authors.lastname: Kim
authors.forename: Jiwon
authors.initials: J
authors.lastname: Yun
authors.forename: Yong Jin
authors.initials: YJ
authors.lastname: Park
mesh_terms: D003195:Computer Communication Networks; D013502:General Surgery / Q000193:education; D006801:Humans; D007564:Japan; D007723:Korea; D013685:Telecommunications; D017216:Telemedicine; D014741:Video Recording