Magnetic resonance imaging and Crohn’s disease endoscopic index of severity: Correlations and concordance

Table 2 Correlations between magnetic resonance indicators and Crohn’s disease endoscopic index of severity before treatment in the two groups

	All n = 104		Active group n = 61		Inactive group n = 43
	r	P value	r	P value	r	P value
ADC	-0.276	0.012	-0.207	0.016	-0.202	0.356
Thickness	0.356	0.001	0.311	0.002	0.952	0.013
tRCE	0.661	< 0.001	0.726	< 0.001	0.718	< 0.001
aRCE	0.634	< 0.001	0.548	< 0.001	0.238	0.274
pRCE	0.519	< 0.001	0.540	< 0.001	0.921	0.022
dRCE	0.507	< 0.001	0.459	< 0.001	0.022	0.920
MaRIA
tRCE	0.772	< 0.001	0.789	< 0.001	0.746	< 0.001
aRCE	0.754	< 0.001	0.767	< 0.001	0.334	0.288
pRCE	0.738	< 0.001	0.745	< 0.001	0.230	0.471
dRCE	0.712	< 0.001	0.718	< 0.001	0.280	0.378
CDEIS	8.15 ± 4.03		10.57 ± 3.02		3.46 ± 1.23

ADC: Apparent diffusion coefficient; tRCE: Total relative contrast enhancement; aRCE: Arterial relative contrast enhancement; pRCE: Portal phase relative contrast enhancement; dRCE: Delay phase relative contrast enhancement; MaRIA: Magnetic resonance index of activity; CDEIS: Crohn’s disease endoscopic index of severity.