Summary
A hand-made papier-mâché stomach model with hollowed-out ulcers was employed for evaluating
the accuracy in estimating ulcer diameters by means of endoscopy. The opened biopsy
forceps were also used as a reference marker. Ten endoscopists with various degrees
of experience were involved in the study.
All the endoscopists underestimated the ulcer diameters; the use of the forceps, resulted
in an improvement, in particular in the case of the comparatively inexperienced endoscopists.
A stomach model may be helpful in the subjective assessment of the endoscopists' ability
to estimate ulcer size.
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