[Telemedicine with digital video transport system].
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.
Hahm
Joon Soo
JS
Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea. hamjs@hanyang.ac.kr
Shimizu
Shuji
S
Nakashima
Naoki
N
Byun
Tae Jun
TJ
Lee
Hang Lak
HL
Choi
Ho Soon
HS
Ko
Yong
Y
Lee
Kyeong Geun
KG
Kim
Sun Il
SI
Kim
Tae Eun
TE
Yun
Jiwon
J
Park
Yong Jin
YJ
D003195:Computer Communication Networks; D013502:General Surgery / Q000193:education; D006801:Humans; D007564:Japan; D007723:Korea; D013685:Telecommunications; D017216:Telemedicine; D014741:Video Recording