Correlation of Cleanliness among Different Bowel Segments during Colonoscopy: A Retrospective Study

Figure 1

The Boston Bowel Preparation Scale (BBPS) (picture cited in Reference [5]). (a) with mucosa not seen due to solid stool that cannot be cleared. (b) of the colon segment seen, but other areas of the colon segment are not well seen due to staining, residual stool, and/or opaque liquid. (c) , small fragments of stool, and/or opaque liquid, but mucosa of colon segment is seen well. (d) of colon segment is seen well with no residual staining, small fragments of stool, or opaque liquid. The wording of the scale was finalized after incorporating feedback from three colleagues experienced in colonoscopy.

(a)

(b)

(c)

(d)