Construct validation of a physical model colonoscopy simulator

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

doi:10.1016/j.gie.2012.03.246

Cited by 45 publications

(30 citation statements)

References 25 publications

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“…One study reported good construct the validity of the Kyoto Kagaku Colonoscope Training Model. Face validity was not studied 24. The last study demonstrated good face, construct and concurrent validity in a bovine explant colon model 26.…”

Section: Resultsmentioning

confidence: 99%

Training and competence assessment in GI endoscopy: a systematic review

Ekkelenkamp

Koch

Man

et al. 2015

Gut

146

121

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The use of validated VR simulators in the early training setting accelerates the learning of practical skills. Learning curves are valuable for the continuous assessment of performance and are more relevant than threshold numbers. Future research will strengthen these conclusions by evaluating simulation-based as well as patient-based training in GI endoscopy. A complete curriculum with the assessment of competence throughout training needs to be developed for all GI endoscopy procedures.

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Section: Resultsmentioning

confidence: 99%

Training and competence assessment in GI endoscopy: a systematic review

Ekkelenkamp

Koch

Man

et al. 2015

Gut

146

121

View full text Add to dashboard Cite

show abstract

“…Further, evidence from several recent studies supports the construct validity of several performance measures derived from use of the Kyoto Kagaku model for the assessment of insertion skill 13 14 15. The first of these studies showed that, compared with experienced colonoscopists, novices had lower completion rates, took longer to reach the cecum, and (for 2 of the 4 colon cases tested) exerted more force on the colon model 13, mirroring experience-related differences found in real colonoscopy 16 17 18 19 20 21 22. A subsequent study found comparable experienced-novice differences when a magnetic endoscopic imaging device was used in conjunction with custom software to automate measurement of the colonoscope’s progression through the synthetic colon 14.…”

Section: Introductionmentioning

confidence: 79%

“…To examine the efficacy of the training method, we compared the novices’ performance on four cases at post-test with that of untrained novices and experienced colonoscopists from a study reported previously that validated performance metrics derived from use of the model (i. e., completion to cecum rate, segment completion rate, time to cecum, and peak forces applied to the model) 13. In addition, we compared the pre-training and post-training performance of the trainees on these same metrics.…”

Section: Participants and Methodsmentioning

confidence: 99%

“…These 2 groups participated in a separate, previously-published validation study involving the Kyoto Kagaku simulator 13. Here, we use the data from that study to provide benchmarks against which to judge the trainees’ performance.…”

Section: Participants and Methodsmentioning

confidence: 99%

“…As in the previously-reported validation study 13, a force plate (FP4060-NC, Bertec Corporation, Columbus, OH) was interposed between the table and the model to measure force applied to the model in the directions x, y, and z. The x-axis of the force plate was aligned with the model’s superior-inferior axis.…”

Section: Participants and Methodsmentioning

confidence: 99%

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The efficacy of training insertion skill on a physical model colonoscopy simulator

et al. 2016

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Background and study aims: Prior research supports the validity of performance measures derived from the use of a physical model colonoscopy simulator – the Kyoto Kagaku Colonoscope Training Model (Kyoto Kagaku Co. Ltd., Kyoto, Japan) – for assessing insertion skill. However, its use as a training tool has received little research attention. We assessed the efficacy of a brief structured program to develop basic colonoscope insertion skill through unsupervised practice on the model. Participants and methods: This was a training study with pretesting and post-testing. Thirty-two colonoscopy novices completed an 11-hour training regime in which they practiced cases on the model in a colonoscopy simulation research laboratory. They also attempted a series of test cases before and after training. For each outcome measure (completion rates, time to cecum and peak force applied to the model), we compared trainees’ post-test performance with the untrained novices and experienced colonoscopists from a previously-reported validation study. Results: Compared with untrained novices, trained novices had higher completion rates and shorter times to cecum overall (Ps < .001), but were out-performed by the experienced colono-scopists on these metrics (Ps < .001). Nevertheless, their performance was generally closer to that of the experienced group. Overall, trained novices did not differ from either experience-level comparison group in the peak forces they applied (P > .05). We also present the results broken down by case. Conclusions: The program can be used to teach trainees basic insertion skill in a more or less self-directed way. Individuals who have completed the program (or similar training on the model) are better prepared to progress to supervised live cases.

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