Transabdominal intestinal ultrasound and its parameters used in the assessment of pediatric inflammatory bowel disease

Table 1 Mean bowel wall thickness modified from van Wassenaer et al[5]

Age in years	Jejunum	Ileum	Cecum	Ascending colon	Transverse colon	Descending colon
0–4	1.0 [0.4]	1.3 [0.2]	1.1 [0.2]	1.1 [0.2]	1.0 [0.2]	1.1 [0.2]
5–9	0.8 [0.1]	0.9 [0.1]	1.1 [0.1]	1.1 [0.2]	1.2 [0.2]	1.2 [0.2]
10–14	0.8 [0.1]	1.0 [0.2]	1.4 [0.2]	1.3 [0.3]	1.3 [0.2]	1.3 [0.2]
15–19	0.9 [0.1]	1.1 [0.1]	1.6 [0.2]	1.4 [0.2]	1.4 [0.2]	1.4 [0.2]

Data are mm [standard deviation].

Table 2 Limberg classification of bowel wall vascularity in inflammatory bowel disease

Grade	Description
0	Normal bowel wall with no thickening, well-delineated mural stratification, no color Doppler signal
1	Wall thickening (hypoechoic wall thickening and partially obscured mural stratification) and absent mural flow
2 (hypo-flow)	Wall thickening with intermittent (or spot) increases in vascularity
3 (hyper-flow)	Wall thickening with protracted regions of increased vascularity
4 (hyper-flow)	Color Doppler flow signals in both the bowel wall and surrounding mesenteric fat