Gd-EOB-DTPA based magnetic resonance imaging for predicting liver response to portal vein embolization

Table 1 Magnetic resonance imaging pulse sequence protocol

	T1 (OOP) 2D FSPGR	T1 (IP) 2D FSPGR	T2 (FS)	Pre- and Post-Gd 3D FSPGR	DWI EPI (B- 0, 400, 800)
# ECHOES/SHOTS	2	2	1	1	1
TE1/TE2 (ms)	2.2-2.4	4.2-4.8	85	min	min (about 50-60)
TR/#R-R (ms)	120	120
FLIP ANGLE	85	85		15
ETL			16
FOV (cm)	48	48	48	48	48
SCAN THK (mm)	6	6	6	5-6 (-2.5)	6
FREQ × PHASE	256 × 160	256 × 160	256 × 160	256 × 128	100 × 160
NEX	1	1	4	1	1, 4, 6
PHASE FOV	0.9-1.0	0.9-1.0	0.75-1.0	0.75-1.0	0.75-1.0

Post-Gd images were obtained at late arterial phase (fluoro-triggered), 60 s, 180 s, 300 s, and 20 min post-Gd injection. Gd-EOB-DTPA was injected at 0.25 mmol/kg at 1 cc/s. TR: Repetition time; TE: Echo time; ETL: Echo train length; FS: Fat Saturated; FOV: Field of view; THK: Thickness; NEX: Number of averages; FSPGR: Fast spoiled gradient echo; DWI: Diffusion weighted imaging; EPI: Echo planar imaging; FREQ: Frequency; SEG: Segment.