Review of small-bowel cleansing scales in capsule endoscopy: A panoply of choices

Table 5 Small-bowel cleansing scale of Esaki et al[31]

Fluid transparency
Grade 1	Clear fluid without obscuring vision
Grade 2	Slightly dark fluid minimally obscuring vision
Grade 3	Opaque fluid partly obscuring vision
Grade 4	Turbid fluid severely obscuring vision
Mucosal invisibility1
Grade 1	< 5% in duration of > 50% bubbles or residues
Grade 2	5%-15%
Grade 3	15%-25%
Grade 4	> 25%
Overall image quality2
Grade A	3-5
Grade B	6-8
Grade C	9-12

¹The percentage indicates the proportion of length of time of video image in which air bubbles or food residues disturbed more than 50% of visualization and interpretation;

²The number indicates the sum of grades in each small intestinal segment.