Multimodel magnetic resonance imaging of mass-forming autoimmune pancreatitis: differential diagnosis with pancreatic ductal adenocarcinoma

Table 1 MRI sequences and parameters

	T2WI		T1WI	Thick slab single slice MRCP	Thin slab multislice MRCP	3D VIBE	DWI
	HASTE	RT-TSE	T1WI	Thick slab single slice MRCP	Thin slab multislice MRCP	3D VIBE	DWI
TR/TE (ms)	1600/95	3000/79	4/1.29	4500/979	1150/252	3.55/1.27	4700/66
FA (°)	150°	120°	9°	180°	121°	13°	–
Section thickness (mm)	5	5	3	45	4	2.5	6
Matrix	320 × 256	320 × 256	320 × 256	512 × 320	512 × 409	320 × 256	192 × 153
FOV (cm)	32–38	32–38	32–38	30	32	32–38	32–38
Acquisition time (s)	60	150	16	5	20	18	198

T2WI T2-weighted images, T1WI T1-weighted images, MRCP magnetic resonance cholangiopancreatography, 3D VIBE three-dimensional volumetric interpolated breath-hold examination, DWI diffusion-weighted imaging, HASTE half-Fourier acquisition single-shot turbo spin-echo, RT-TSE respiratory-triggered turbo spin-echo, TR repetition time, TE echo time, FA flip angle, FOV field of view

ISSN: 1471-2342