Small bowel video capsule endoscopy in Crohn’s disease: What have we learned in the last ten years?

Table 3 Capsule endoscopy Crohn’s disease activity index scoring system[37]

	Proximal	Distal
A. Inflammation score	0 = None
	1 = Mild to moderate edema/hyperemia/denudation
	2 = Severe edema/hyperemia/denudation
	3 = Bleeding, exudates, aphthae, erosion small ulcer (< 0.5 cm)
	4 = Moderate ulcer (0.5 cm - 2 cm), pseudopolyp
	5 = Large ulcer (> 2 cm)
B. Extent of disease score	0 = None
	1 = Focal disease (single segment)
	2 = Patchy disease (multiple segments)
	3 = Diffuse disease
C. Narrowing (stricture)	0 = None
	1 = Single-passed
	2 = Multiple-passed
	3 = Obstruction
Segmental score = A × B + C
Total score = (A1 × B1 + C1) + (A2 × B2 + C2)