Imperial College London
Alternate

Professor Julian Teare

Faculty of Medicine, Department of Surgery & Cancer

Emeritus Professor
 
 
 
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Contact

 

+44 (0)20 3312 1072j.teare

 
 
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Location

 

CL3 026St Marys Multiple BuildingsSt Mary's Campus

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Summary

 

Publications

Citation

BibTex format

@article{Edmondson:2016:10.1111/jgh.13184,
author = {Edmondson, MJ and Pucher, PH and Sriskandarajah, K and Hoare, J and Teare, J and Yang, G-Z and Darzi, A and Sodergren, MH},
doi = {10.1111/jgh.13184},
journal = {JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY},
pages = {604--609},
title = {Looking towards objective quality evaluation in colonoscopy: Analysis of visual gaze patterns},
url = {http://dx.doi.org/10.1111/jgh.13184},
volume = {31},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Background and AimThere are currently limited training and assessment tools available to novice endoscopists. A potential tool for the objective assessment of endoscopist visual search strategy is eyetracking technology. The aim of this study is to assess whether eyetracking technology can be used to differentiate the visual gaze patterns (VGP) of experienced and novice endoscopists, and to characterize any differences arising between the two groups.MethodWith the use of portable eyetracking glasses, VGP of novice (n = 20) and experienced (n = 14) endoscopists were compared while viewing a colonoscopy withdrawal through the hepatic flexure. Analysis was performed by comparing the central versus peripheral distribution and the horizontal distribution of novice and experienced endoscopist fixations, along with comparison of basic eyetracking metrics.ResultsThis study found that experienced endoscopists had a significantly higher percentage of fixations within the periphery of the screen (13.4% vs 23.0%, P = 0.013). Experienced endoscopists also had a significantly greater percentage of fixations on the left side of the screen (18.6% vs 33.5%, P = 0.005) that displayed the poorly visualized “inside bend” of the hepatic flexure.ConclusionThis study has detailed specific VGP acquired through expertise, which can potentially explain why adenomas are regularly missed at the hepatic flexure during colonoscopy. These may be useful for the training of novice colonoscopists, and further validation may utilize VGP in the development of an objective proficiency based curriculum to improve the detection of pathology and overall quality in endoscopy.
AU  - Edmondson,MJ
AU  - Pucher,PH
AU  - Sriskandarajah,K
AU  - Hoare,J
AU  - Teare,J
AU  - Yang,G-Z
AU  - Darzi,A
AU  - Sodergren,MH
DO  - 10.1111/jgh.13184
EP  - 609
PY  - 2016///
SN  - 0815-9319
SP  - 604
TI  - Looking towards objective quality evaluation in colonoscopy: Analysis of visual gaze patterns
T2  - JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY
UR  - http://dx.doi.org/10.1111/jgh.13184
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000371483800017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/58768
VL  - 31
ER  -
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