Association Between Visual Gaze Patterns and Adenoma Detection Rate During Colonoscopy: A Preliminary Investigation

2011 ◽  
Vol 106 (6) ◽  
pp. 1070-1074 ◽  
Author(s):  
Cristina Almansa ◽  
Muhammad W Shahid ◽  
Michael G Heckman ◽  
Susan Preissler ◽  
Michael B Wallace
2010 ◽  
Vol 71 (5) ◽  
pp. AB152
Author(s):  
Cristina Almansa ◽  
Muhammad W. Shahid ◽  
Susanne Preissler ◽  
Michael B. Wallace

Endoscopy ◽  
2018 ◽  
Vol 50 (07) ◽  
pp. 701-707 ◽  
Author(s):  
Mariam Lami ◽  
Harsimrat Singh ◽  
James Dilley ◽  
Hajra Ashraf ◽  
Matthew Edmondon ◽  
...  

Abstract Background The adenoma detection rate (ADR) is an important quality indicator in colonoscopy. The aim of this study was to evaluate the changes in visual gaze patterns (VGPs) with increasing polyp detection rate (PDR), a surrogate marker of ADR. Methods 18 endoscopists participated in the study. VGPs were measured using eye-tracking technology during the withdrawal phase of colonoscopy. VGPs were characterized using two analyses – screen and anatomy. Eye-tracking parameters were used to characterize performance, which was further substantiated using hidden Markov model (HMM) analysis. Results Subjects with higher PDRs spent more time viewing the outer ring of the 3 × 3 grid for both analyses (screen-based: r = 0.56, P = 0.02; anatomy: r = 0.62, P < 0.01). Fixation distribution to the “bottom U” of the screen in screen-based analysis was positively correlated with PDR (r = 0.62, P = 0.01). HMM demarcated the VGPs into three PDR groups. Conclusion This study defined distinct VGPs that are associated with expert behavior. These data may allow introduction of visual gaze training within structured training programs, and have implications for adoption in higher-level assessment.


2019 ◽  
Author(s):  
S Michopoulos ◽  
G Axiaris ◽  
P Baxevanis ◽  
M Stoupaki ◽  
V Gagari ◽  
...  

2019 ◽  
Author(s):  
T Rath ◽  
F Vitali ◽  
E Klenske ◽  
J Siebler ◽  
M Neurath ◽  
...  

2019 ◽  
Author(s):  
E Waldmann ◽  
H Sinkovec ◽  
G Heinze ◽  
D Penz ◽  
B Majcher ◽  
...  

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