Identification of gaze pattern and blind spots by upper gastrointestinal endoscopy using an eye-tracking technique View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-05-19

AUTHORS

Ayoung Lee, Hyunsoo Chung, Yejin Cho, Jue Lie Kim, Jinju Choi, Eunwoo Lee, Bokyung Kim, Soo-Jeong Cho, Sang Gyun Kim

ABSTRACT

BackgroundThe lesion detection rate of esophagogastroduodenoscopy (EGD) varies depending on the degree of experience of the endoscopist and anatomical blind spots. This study aimed to identify gaze patterns and blind spots by analyzing the endoscopist’s gaze during real-time EGD.MethodsFive endoscopists were enrolled in this study. The endoscopist’s eye gaze tracked by an eye tracker was selected from the esophagogastric junction to the second portion of the duodenum without the esophagus during insertion and withdrawal, and then matched with photos. Gaze patterns were visualized as a gaze plot, blind spot detection as a heatmap, observation time (OT), fixation duration (FD), and FD-to-OT ratio.ResultsThe mean OT and FD were 11.10 ± 11.14 min and 8.37 ± 9.95 min, respectively, and the FD-to-OT ratio was 72.5%. A total of 34.3% of the time was spent observing the antrum. When observing the body of the stomach, it took longer to observe the high body in the retroflexion view and the low-to-mid body in the forward view.ConclusionsIt is necessary to minimize gaze distraction and observe the posterior wall in the retroflexion view. Our results suggest that eye-tracking techniques may be useful for future endoscopic training and education. More... »

PAGES

2574-2581

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Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00464-021-08546-3

DOI

http://dx.doi.org/10.1007/s00464-021-08546-3

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https://app.dimensions.ai/details/publication/pub.1138180633

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/34013392


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