Table 2. Prevalence of AP Flattening.

Patients with the Terminal Ileum Lying Across the Psoas Muscle				Patients with the Sigmoid Colon Lying Across the Psoas Muscle
All Patients (n = 322)	Subcohort of Patients with Prior CTE (n = 164)			All Patients (n = 363)	Subcohort of Patients with Prior CTE (n = 190)
MRE	MRE	CTE	P	MRE	MRE	CTE	P
7.5% (24/322)	7.3% (12/164)	0.6% (1/164)	0.003	5.2% (19/363)	5.8% (11/190)	1.6% (3/190)	0.039

Numbers in parentheses represent the corresponding numbers of patients. AP flattening = flattening in the anteroposterior direction, CTE = computed tomography enterography, MRE = magnetic resonance enterography