Construct validation of a physical model colonoscopy simulator

Annaliese M Plooy; Andrew Hill; Mark S Horswill; Alanna St G Cresp; Marcus O Watson; Soong-Yuan Ooi; Stephan Riek; Guy M Wallis; Robin Burgess-Limerick; David G Hewett

doi:10.1016/j.gie.2012.03.246

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Construct validation of a physical model colonoscopy simulator

Journal article

Peer reviewed

Construct validation of a physical model colonoscopy simulator

Annaliese M Plooy, Andrew Hill, Mark S Horswill, Alanna St G Cresp, Marcus O Watson, Soong-Yuan Ooi, Stephan Riek, Guy M Wallis, Robin Burgess-Limerick and David G Hewett

Gastrointestinal Endoscopy, Vol.76(1), pp.144-150

2012

DOI: https://doi.org/10.1016/j.gie.2012.03.246

PMID: 22726473

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Abstract

Clinical Competence

Education, Medical - methods

Analysis of Variance

Time Factors

Cecum

Humans

Intubation, Gastrointestinal

Manikins

Colonoscopy - education

Task Performance and Analysis

Gastroenterology - education

Previous studies have demonstrated the construct validity of virtual reality colonoscopy simulators by showing that they can distinguish between users according to their level of endoscopic experience. Although physical model simulators are known to simulate looping more realistically than these devices, they lack published validation evidence. To assess the construct validity of a physical model simulator, the Kyoto Kagaku Colonoscope Training Model (Kyoto Kagaku Co. Ltd, Kyoto, Japan) and to determine its suitability for assessing the insertion skill of trainee colonoscopists. Validation study; 21 experienced colonoscopists and 18 novices made 2 attempts at each of 4 standard cases on the Kyoto Kagaku physical model simulator, and we compared their performance on each case. A medical simulation center in a large tertiary hospital. Completion rates, times to cecum, and peak forces applied to the colon model. Compared with novices, experienced colonoscopists had significantly higher completion to cecum rates and shorter times to cecum for each of the 4 cases (all P < .005). For 2 cases, experienced colonoscopists also exerted significantly lower peak forces than did novices (both P = .01). Two of the model's 6 "standard cases" were not included in the study. The 4 cases included in the study have construct validity in that they can distinguish between the performance of experienced colonoscopists and novices, reproducing experienced/novice differences found in real colonoscopy. These cases can be used to validly assess the insertion skill of colonoscopy trainees.

Details

Title: Construct validation of a physical model colonoscopy simulator
Authors: Annaliese M Plooy (Author) - University of Queensland
Andrew Hill (Author) - University of Queensland
Mark S Horswill (Author) - University of Queensland
Alanna St G Cresp (Author) - University of Queensland
Marcus O Watson (Author) - University of Queensland
Soong-Yuan Ooi (Author) - University of Queensland
Stephan Riek (Author) - University of Queensland
Guy M Wallis (Author) - University of Queensland
Robin Burgess-Limerick (Author) - University of Queensland
David G Hewett (Author) - University of Queensland
Publication details: Gastrointestinal Endoscopy, Vol.76(1), pp.144-150
Publisher: Elsevier Inc.
DOI: 10.1016/j.gie.2012.03.246
ISSN: 1097-6779
PMID: 22726473
Organisation Unit: Graduate Research School; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99472604602621
Output Type: Journal article

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35 Times Cited - Web of Science

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Collaboration types: Domestic collaboration
Web Of Science research areas: Gastroenterology & Hepatology

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Source: InCites