Factors predicting aggressiveness of non-hypervascular hepatic nodules detected on hepatobiliary phase of gadolinium ethoxybenzyl diethylene-triamine-pentaacetic-acid magnetic resonance imaging

Table 1 Magnetic resonance imaging study conditions

			Signa HDX 1.5T	Achiva Nova Dual 1.5T	Magnetom vario
Unenhanced	T1WI	TR (ms)	175.79	189.93	190
		TE (OP/IP) (ms)	2.2/4.6	2.3/4.6	1.49/2.64
		Number of exitation	1	1	1
		Field of view (cm)	35	35	35
		Matrix	288 × 214	288 × 214	256 × 208
		Slice thickness (mm)	6	6	6
	T2WI	TR (ms)	Breath synchronization	Breath synchronization	Breath synchronization
		TE (ms)	88.62	90	85
		Number of exitation	2	2	2
		Field of view (cm)	35	35	35
		Matrix	320 × 192	320 × 245	512 × 319
		Slice thickness (mm)	6	6	6
Enhanced	Dynamic	TR (ms)	3.83	3.93	2.77
		TE (ms)	1.65	1.93	1.14
		Number of exitation	1	1	1
		Flip angle (degree)	12	12	12
		Field of view (cm)	35	35	35
		Matrix	320 × 192	320 × 192	320 × 182
		Slice thickness (mm)	2.5	2.5	2.5

T1WI: T1-weighted imaging; T2WI: T2-weighted imaging with fat suppression; TR: Repetition time; TE: Echo time; IP: In-phase; OP: Out-of-phase.