The Transmission Performance Evaluation of Remote Healthcare Data over Secure Satellite Network / 대한의료정보학회지

OBJECTIVES: We have not only examined telemedicine scenario but also applied IPSec(AH, ESP) algorithms under VPN(Virtual Private Network) for performance evaluation of telemedicine system's security and transmission. METHODS: In this study, we applied IPSec(AH, ESP) algorithms under VPN(Virtual Private Network) protocol when transmit healthcare data through Satellite Network. At that time, we evaluated performance of telemedicine system through RTT(Round Trip Time), Jitter, Bandwidth that indicate to QoS(Quality Of Service). RESULTS: It is possible to transfer remote healthcare data over Satellite Network under provided image of 15 frame and bio-signal of 10 kbps and RTT(Round Trip Time) of 774.53ms, Jitter of 25.2ms. But applying IPsec(AH, ESP) under VPN(Virtual Private Network), it is frequently happened distortion of image data affected SHA-1 and 3DES algorithm. CONCLUSION: In this study, it is possible to use telemedicine system for Secure Satellite Network, but demand to be based QoS(Quality Of Service) limited. We expected that it is possible to use the designed system in the disaster area.

Congenital Pseudarthrosis associated with Neurofibromatosis: A case report / 대한정형외과학회잡지

Congenital pseudarthrosis is frequently associated with various stigmata of neurofibromatosis, particularly Cafe-Au-Lait spots and,subcutaneous nodules and in these patients, it is noteworthy that the treatment is very difficult even with extensive operative approach. Also it is interesting to find many controversies on etiological relation between neurofibroma and pseudarthrosis, per se and even the existance of nerve element in and around the tissue of pseudarthrosis. A thirteen years old female patient with definite neurofibromatosis associated with congenital tibial pseudarthrosis treated by intramedullary nailing and massive bone graft is reported.

Internal Derangment of Knee Due to Rupture of Plica Synovialis Mediopatellaris: A case report / 대한정형외과학회잡지

In clinical experience, patients complaining of knee joint pain which is not belong to the category of well documented causative diseases, such as rupture of menisci, collateral ligaments and so forth, have been encountered, Since the report of Mayedas chorda cavi articularis genu in 1918, internal derangement of knee due to rupture of plica synovialis has been presented from time to time, Numerous nomenclatures have been offered and various histologic and clinicopathologic features have been observed. Majority of uncomplicated plica synovialis are asymptomatic and respond well to conservative treatment, whereas in complicated cases operation is often inevitable. Here, a symptomatic case, due to rupture of plica synovialis mediopatellaris which was hard to differentiate from rupture of meniscus in clinical aspect and on operation field is reported with available references.