Table 7.

Comparison of IUS findings versus endoscopy and when IUS and additional imaging were adequate and performed within 2 months.

IUS versus endoscopy
n = 51	Comparable findings	IUS active	IUS inconclusive	Endoscopy active	Endoscopy inconclusive
Overall	44/51 [86.3%]	38/51 [74.5%]	-	41/51 [80.4%]	-
TI	37/38 [97.4%]	19/51 [37.3%]	2/51 [3.9%]	20/51 [39.2%]	11/51 [21.6%]
AC	38/43 [88.4%]	3/51 [5.9%]	-	4/51 [7.8%]	8/51 [15.7%]
TC	36/45 [80.0%]	10/51 [19.6%]	-	9/51 [17.6%]	6/51 [11.8%]
DC	44/51 [86.3%]	15/51 [29.4%]	-	14/51 [27.5%]	-
SC	44/50 [88.0%]	17/51 [33.3%]	-	16/51 [31.4%]	-
Rectum	26/40 [65.0%]	10/51 [19.6%]	11/51 [21.6%]	21/51 [41.2%]	-
Stricture	47/51 [92.2%]	12/51 [23.5%]	-	16/51 [31.4%]	-
n = 15		Comparable findings	IUS present	MRI present
Disease activity
Overall		12 [80.0%]	9 [60%]	12 [80.0%]
Ileal disease		12 [80.0%]	8 [53.3%]	11 [73.3%]
Proximal small bowel disease		9 [60.0%]	1 [6.7%]	4 [26.7%]
Complications
Stricture		12 [80.0%]	5 [33.3%]	8 [53.3%]
Intra-abdominal abscess		15 [100%]	0 [0%]	0 [0%]
Intra-abdominal fistula		12 [80.0%]	1 [6.7%]	1 [6.7%]

Overall = presence/absence of disease activity for endoscopy and presence/absence of disease activity and/or complications for MRI. IUS inconclusive = segment not investigated due to various reasons. Endoscopy inconclusive = not investigated due to various reasons [i.e., sigmoidoscopy, technical difficulties, etc.].

AC, ascending colon; DC, descending colon; IUS, intestinal ultrasound; MRI, magnetic resonance imaging; SC, sigmoid colon; TC, transverse colon; TI, terminal ileum.