Expanding role of capsule endoscopy in inflammatory bowel disease

Table 1 The incremental yield of capsule endoscopy over other testing (Treister et al[7])

	Total yield CE (%)	Total yield other modality (%)	% IY for CE (95% CI)
Small bowel series	66	24	42 (0.30-0.54)
Ileoscopy	61	46	15 (0.02-0.27)
CT enterography	75	37	38 (0.23-0.54)
Push enteroscopy	51	7	44 (0.31-0.57)
Small bowel MRI	60	40	20 (0.41-0.81)

Table 2 Parameters and weightings for the capsule endoscopy scoring index (Gralnek et al[26])

	Parameters	Number	Longitudinal extent	Descriptors
First tertile	Villous appearance	Normal: 0	Short segment: 8	Single: 1
		Edematous: 1	Long segment: 12	Patchy: 14
			Whole tertile: 20	Diffuse: 17
	Ulcer	None: 0	Short segment: 5	< 1/4: 9
		Single: 3	Long segment: 10	1/4-1/2: 12
		Few: 5	Whole tertile: 15	> 1/2: 18
		Multiple: 10
Second tertile	Villous appearance	Normal: 0	Short segment: 8	Single: 1
		Edematous: 1	Long segment: 12	Patchy: 14
			Whole tertile: 20	Diffuse: 17
	Ulcer	None: 0	Short segment: 5	< 1/4: 9
		Single: 3	Long segment: 10	1/4-1/2: 12
		Few: 5	Whole tertile: 15	> 1/2: 18
		Multiple: 10
Third tertile	Villous appearance	Normal: 0	Short segment: 8	Single: 1
		Edematous: 1	Long segment: 12	Patchy: 14
			Whole tertile: 20	Diffuse: 17
	Ulcer	None: 0	Short segment: 5	< 1/4: 9
		Single: 3	Long segment: 10	1/4-1/2: 12
		Few: 5	Whole tertile: 15	> 1/2: 18
		Multiple: 10
Stenosis-Rated for Whole Study	Stenosis	None: 0	Ulcerated: 24	Traversed: 7
		Single: 14	Non-Ulcerated: 2	Not traversed: 10
		Multiple: 20