Dynamic contrast-enhanced magnetic resonance imaging and diffusion-weighted imaging in the activity staging of terminal ileum Crohn's disease

Table 1 Magnetic resonance enterography acquisition parameters

Parameter	HASTE	Trufi	DWI	Dixon	Twist	Dixon
Imaging plane (s)	Coronal/axial	Axial	Axial	Axial	Axial	Axial/coronal
TR (ms)	1800/1600	382.48/398.94	8300	3.93	4.5	3.93/4.21
TE (ms)	88/95	1.68/1.72	54	1.26 2.49	1.23 2.46	1.26 2.49/1.34 2.57
Flip angle (°)	180/160	50/52	-	9	6.1	9
FOV (mm2)	360 × 360/380 × 380	380 × 380	400 × 400	400 × 400	380 × 380	400 × 400/450 × 450
Slices	30/50	55	48	96	96	96/72
Slice thickness (mm)	5	5	5	3	3	3/1.5
Slice gap (%)	20	20	20	20	20	20
Fat saturation	Yes	No/Yes	-	-	-	-
TA (min : s)	0:54/1:32	0:21/0:22	3:03	0:16	2:05	0:16/0:12

HASTE: Half-Fourier acquisition single-shot turbo spin echo; DWI: Diffusion-weighted imaging; TR: Repetition time; TE: Echo time; TA: Acquisition time; FOV: Field of view.