Narrow-Band Imaging Colonoscopy to Assess Mucosal Angiogenesis in Ulcerative Colitis

Table 2

Correlation between the degree of inflammation identified by histological colitis score and the mucosal pattern.

Degree of inflammation (histological colitis score)	Classification of mucosal pattern using NBI
	Clear ()	Obscure ()	Absent ()	Absent ()
				Crypt opening ()	Villous ()
0	0	0	0	0	0
1	26	14	0	0	0
2	8	28	1	1	0
3	0	16	11	5	6
4	0	0	15	5	10

NBI: narrow-band imaging.