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  • Title: Teleteaching endoscopy: the feasibility of real-time, uncompressed video transmission by using advanced-network technologies.
    Author: Kaltenbach T, Muto M, Soetikno R, Dev P, Okamura K, Hahm J, Shimizu S.
    Journal: Gastrointest Endosc; 2009 Nov; 70(5):1013-7. PubMed ID: 19643406.
    Abstract:
    BACKGROUND: Teleteaching of endoscopy has been limited by the exorbitant cost and time inherent in high-quality digital endoscopy video transmission. The Digital Video Transport System (DVTS) transmitted over advanced networks, such as Internet2 and the Asia-Pacific Advanced Network (APAN), provides a unique infrastructure for sharing uncompressed digital videos of endoscopy. This may allow high-quality, real-time, international training of diagnostic and therapeutic endoscopy techniques at a low cost. OBJECTIVE: To test the proof of concept of long-distance teaching through live, interactive, high-resolution video transmission by using advanced networks and the DVTS. We used teleteaching of image-enhanced endoscopy techniques as a model. DESIGN: Prospective multicenter pilot study. SETTING AND PARTICIPANTS: Trainees, faculty, and staff at 3 international endoscopy units. INTERVENTION: An image-enhanced endoscopy video lecture with advanced-network technologies. MAIN OUTCOME MEASUREMENTS: We compared image-based prelecture and postlecture test scores and secondarily assessed technical feasibility and quality. RESULTS: The DVTS transmitted over advanced networks successfully transmitted uncompressed, high-resolution, digital lectures with endoscopic video (digital video format 720 x 480 pixels). Postsession scores improved. Participants highly rated the technical and informational quality. The majority reported a definite interest in participating in future sessions, with a mean rating (out of 5 [scale 1-5]) of 4.7 +/- 0.5. LIMITATIONS: Pilot study with a limited number of participants and sessions. CONCLUSION: The DVTS transmitted over advanced networks such as Internet2 and APAN can provide the infrastructure for transmission of high-resolution, uncompressed video endoscopy for the purpose of teleteaching endoscopy.
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