Table 4.

Diagnostic performance of ultrasound and magnetic resonance enterography regarding bowel wall changes, diagnosis of bowel inflammation, stenosis, abscess, fistula and indirect inflammation signs such as local lymphadenopathy and fat injection or comb sign n (%)

	Bowel wall changes	Diagnosis “bowel wall inflammation”	Stenosis	Abscess	Fistula	Local lymph-adenopathy	Mesenteric fat injection/comb sign
US = MRE (no pathological change)	21 (8)	83 (33)	150 (60)	221 (84)	211 (88)	187 (75)	182 (73)
US = MRE (pathological change)	163 (65)	29 (12)	20 (8)	9 (4)	5 (2)	4 (2)	4 (2)
US > MRE	28 (11)	6 (2)	8 (3)	4 (2)	2 (1)	15 (6)	4 (2)
MRE > US	38 (15)	132 (53)	72 (29)	16 (6)	32 (13)	44 (18)	60 (24)

US: Ultrasound; MRE: Magnetic resonance enterography. In “US = MRE” the number (and percentage) of cases, when both modalities found the same amount of pathological features (patient based) are identical. For “US > MRE” the reports based on ultrasound described more pathological changes compared to the MRE, while for “MRE > US” more findings in the MRE reports were detected (because of truncation the percentage values in a column can exceed 100%).