Roel Bogie

Development and validation of an educational web-based system for endoscopic classification of laterally spreading tumors

Validation phase We invited endoscopy fellows from the MUMC+ and NTUH in the study to test whether the endoscopic LST classification can be taught to novices using an e-learning. The trainees all had at least some endoscopy experience. All fellows completed a test before (pre-test) and after (post test) the LST training. Age, year of traineeship, number of colonoscopies performed (attended and unattended) and number of endoscopic resections performed were collected at the start of the pre- test (Step 5). The pre-test was identical with the test accomplished by the experts. The LST e-learning (Step 6) became available at least a week after completion of the pre-test and was available till the end of the study. The post-test (Step 7) became available at least one week after the completion of

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Figure 2.3: Screenshot of the web-based system. | Area A displays information about patient and lesion. Area B displays multiple pictures. Area C presents four questions per case. Area D can be used to navigate through the questions, to stop the module (and continue at a later moment) and to proceed with the next case (only possible when all four questions are answered).

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