Table 1. Qualitative assessment by five endoscopists of the full-spectrum endoscope used for esophagogastroduodenoscopy in 21 subjects.

Qualitative aspect	Rated excellent/good/acceptable/difficult/unacceptable, %
General impression	Acceptable: 80 %
Ease of scope maneuverability	Good: 20 %, acceptable: 80 %
Image quality	Acceptable: 20 %, difficult: 80 %
Field of view	Good: 80 %, acceptable: 20 %
Brightness	Good: 20 %, acceptable: 60 %, difficult: 20 %
Waterjet irrigation	Good: 20 %, acceptable: 60 %, difficult: 20 %
Usability compared with standard front viewing endoscopy	Inferior: 100 %