Impact of varying transmission bandwidth on image quality

Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association
T J BroderickR C Merrell

Abstract

The objective of this paper is to determine the effect of varying transmission bandwidth on image quality in laparoscopic surgery. Surgeons located in remote operating rooms connected through a telemedicine link must be able to transmit medical images for interaction. Image clarity and color fidelity are of critical importance in telementoring laparoscopic procedures. The clarity of laparoscopic images was measured by assessing visual acuity using a video image of a Snellen eye chart obtained with standard diameter laparoscopes (2, 5, and 10 mm). The clarity of the local image was then compared to that of remote images transmitted using various bandwidths and connection protocols [33.6 Kbps POTS (IP), 128 Kbps ISDN, 384 Kbps ISDN, 10 Mbps LAN (IP)]. The laparoscopes were subsequently used to view standard color placards. These color images were sent via similar transmission bandwidths and connection protocols. The local and remote images of the color placards were compared to determine the effect of the transmission protocols on color fidelity. Use of laparoscopes of different diameter does not significantly affect image clarity or color fidelity as long as the laparoscopes are positioned at their optimal working distance. Decr...Continue Reading

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Citations

Jan 15, 2004·Gastrointestinal Endoscopy·Stephan M WildiRobert H Hawes
Nov 15, 2007·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·Cosmin BoancaRonald C Merrell
Jun 27, 2008·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·Ke-Jian HuangKoji Okamura
Feb 10, 2009·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·Shuji ShimizuMasao Tanaka
Mar 10, 2011·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·Brian GradyUNKNOWN American Telemedicine Association Telemental Health Standards and Guidelines Working Group
Mar 17, 2004·Annals of Surgery·Azhar RafiqRonald C Merrell
May 1, 2010·Gut and Liver·Joon Soo HahmShuji Shimizu
May 31, 2007·World Journal of Surgery·Mehran Anvari
Aug 12, 2010·Journal of Evaluation in Clinical Practice·Paul J BarrCarmel M Hughes
Oct 12, 2004·The Urologic Clinics of North America·Mohamad AllafDan Stoianovici
Apr 25, 2006·Anesthesia and Analgesia·Stephen W ConeRonald C Merrell
Jan 21, 2006·Surgical Innovation·Herawaty SebajangMehran Anvari
Jan 27, 2004·Anesthesia and Analgesia·Stephen W ConeRonald C Merrell
Sep 28, 2001·Nature·J MarescauxM K Smith
Oct 28, 2019·Journal of Biomedical Optics·Fan ZhangRonald X Xu

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