Development and validation of a training module on the use of narrow-band imaging in differentiation of small @entity652 from XXXX .

@entity1 @entity5953 @entity652 @entity1127
BACKGROUND: Experts are accurate in differentiating small @entity652 from @entity1127 at colonoscopy by using narrow-band imaging (NBI). OBJECTIVE: To prospectively evaluate the effectiveness of an NBI training module on individuals with varying colonoscopy experience. DESIGN: Prospective educational evaluation study. SETTING: Academic endoscopy unit. @entity1 : Twenty-one @entity1 of varying colonoscopy experience (novices, trainees, and experienced gastroenterologists) and 5 experts in NBI. INTERVENTION: @entity1 completed a computer-based test module consisting of 30 NBI polyp images. No feedback was given. They then completed a computer-based training module on the use of NBI in the differentiation of @entity652 and @entity1127 . The test module was then completed a second time. MAIN OUTCOME MEASUREMENTS: Construct validity (the difference in baseline accuracy on the test module between different groups of @entity1 ) and content validity (difference in accuracy achieved on the test module before and after training) of the training module. RESULTS: There was a significant difference in the baseline accuracy (P < .001) between experts (0.95; 95% confidence interval [CI], 0.92-0.97), experienced colonoscopists (0.68; 95% CI, 0.68-0.74), trainees (0.75; 95% CI, 0.67-0.82), and novices (0.62; 95% CI, 0.46-0.77). Accuracy increased significantly (P < .001) for @entity5953 groups after training (novices 0.84; 95% CI, 0.78-0.88, trainees 0.90; 95% CI, 0.84-0.93, and experienced colonoscopists 0.84; 95% CI, 0.76-0.89). After training, the agreement was moderate at least (k = 0.56 for novices, k = 0.70 for trainees, and k = 0.54 for experienced colonoscopists). LIMITATIONS: This study did not assess the accuracy of optical diagnosis in routine clinical practice. CONCLUSION: A short, computer-based training module can improve the diagnostic accuracy and interobserver agreement for the use of NBI to differentiate @entity652 from @entity1127 and could be used for the initial training in optical diagnosis.
