Preoperative evaluation of pancreaticobiliary tumor using MR multi-imaging techniques

Table 2 MR multi-imaging technique parameters.

Protocol angulation	T1WI/SPIR transversal	T2WI/SPIR transversal	T2WI coronal	MRCP coronal	DCE MRA coronal
Sequence	TSE/SE	TSE	TSE	TSE	FFE
TR (ms)	575/500	1 800	1 800	2 000	11
TE (ms)	12/15	99/80	100	700	2.5
FOV (mm)	345/375	345	435	395	450
Matrix	176×256	203×256	202×256	190×256	164×512
No. of slices	16	16	18	50	50
Thickness (mm)	10	10	6	2	2
Gap (mm)	1	1	0.6	0	0
Fast factor	4/-	18/14	23	101	-
NSA	5/2	4	4	2	1
Respiratory	Trigger	Trigger	Trigger	Trigger	Breath-hold

TR: time of repeat; TE: time of echo; FOV: field of view; NSA: number of signal average.