Role of capsule endoscopy in inflammatory bowel disease

Table 1 A comparison of 2 capsule endoscopy scoring indices for quantification of mucosal inflammation

Parameter	Lewis score[8]			CECDAI[80]
	Number/quality	Longitudinal extent	Descriptors	Parameter	Descriptors
Villous appearance	Normal/edematous	Short segment/long segment/whole tertile	Single/patchy/diffuse	Inflammation score	None to large ulcer (> 2 cm)
Ulceration	Non/single/few/multiple	Short segment/long segment/whole tertile	< 25%, 25%-50%, > 50%	Extent of disease	No disease to diffuse (3 segments)
Stricture	Non/single/few/multiple	Ulcerated/non-ulcerated	Traversed/non-traversed	Stricture score	None to complete obstruction
Small bowel segmentation	Tertiles (strictures for the entire length of the examination)			Proximal to distal small bowel
Score	< 135: Normal or clinically insignificant inflammation			0 (normal examination)-26 (severe inflammation)
	135-790: Mild inflammation
	790: Moderate to severe.

CECDAI: Capsule endoscopy Crohn’s disease activity score.