We have performed a clinical evaluation on the new Olympus endoscopy system for upper digestiv tract, EVIS-CV240 and GIF-Q240. This new system features better insertability and maneuverability, higher resolution and larger monitor size. This system also enables EUS procedures with the use of US miniature probe.
We have selected 10 doctors with 5 years or more experlence in endoscopy, and performed a questionnaire for 67cases pesformed using this system. The questionnaire included comparison of picture quallty in enhance of structure levels 1, 4, and 8 (hereunder ESL) in the esophagus, stomach and duodenum, and comparison to the current CV200 and GIF-XQ230 system.
As for picture quality, the result showed improvement in the new system. In higher enhance of structure levels, clearer observation of the visible vascular pattern, redness of the mucosa, and change in color were possible for all tracts.
Ln comparison to the CV200 and GIF-XQ230 system, overall results showed improvement in the new CV240 and GIF-Q240 system, however, some identified problems in its maneuverability.
Through our evaluation we conclude that the new CV240 and GIF-Q240 system is useful for observation in the upper digestive tract. This may lead not only to a reduction of misdiagnosis, but more importantly, this may lead to a progress in higher level diagnosis with the use of accumulated high quality pictures of minute lesions.
