Extrahepatic biliary cancer: New staging classification

Table 3 Magnetic resonance imaging protocol

Entry	Feet first			Position	Supine
Coil type	8 cardiac or 8 body upper	8 cardiac or 8 body upper	8 cardiac or 8 body upper	8 cardiac or 8 body upper	8 cardiac or 8 body upper	8 cardiac or 8 body upper	8 cardiac or 8 body upper
Series desc	(1) Axial T2	(2) ASSET calib	(3) Axial T1 asset	(4) 3D LAVA XV Dyn	(5) Diffusion	(6) 3D 5 min LAVA XV	(7) Fiesta
Scan plane	Axial	Axial	Axial pre	Axial	Axial	Axial	Coronal
Image mode	2D	2D	2D in/out phase	3D	2D	3D	2D
Pulse seq	FSE-XL	Fast SPGR	Fast SPGR	Fast SPGR	DW EPI	Fast SPGR	Fiesta
TE1/TE2 (ms)	85		FWIP/FWOP	Min Full	Min (~ 50-60)		Min
TR/#R-R (ms)	4000-6000		150-220		1200-1800
Flip angle			85	15	NA	15	50-75
ETL (echo train length)	16
RCV BW1 (kHz)	41.67		62.50	83.33	(125)	83.33	83-125
FOV (cm)	34-44	48	34-44	34-42	38-44	34-44	34-44
SCAN THK (mm)	6	10	5	4	5	4	5
Spacing/#Loc	0	0	0	-2.0	0/36 slices	-2.0	0 or -1
Freq × phase	256 × 192		256 × 192	320 × (160-192)	100 × 160	320 × (160-192)	192 × 356
NEX	3-4	1	1		6		2
Phase FOV	0.75-1.0	1.0	0.9-1.0	0.75-1.0	1.0	0.70-0.90	0.75 –1.0
Freq dir	R/L	A/P	R/L	R/L	R/L	R/L	S/I