Table 2. MR Parameters

MR parameters		Skyra	Architect	Avanto	Premier	Vida	TrioTim	Symphony
T1WI	TR	420–682	550	369	550	564	541–651	420
	TE	8.2–12	7.8	9.1	6.9	8.2	9.4	8.7
	ST	4 (ax)2 (co)	4 (ax)2 (co)	5	4 (ax)2 (co)	4 (ax)2 (co)	4 (ax)2 (co)	4 (ax)2 (co)
	FOV	200×200	200×200	180×180	200×200	200×200	200×200	180×180
	ETL	3	3	1	3	4	1 (pre), 3 (post)	1 (pre), 2 (post)
	Matrix	320×256	320×256	320×224	320×256	320×256	320×200	320×224
	NEX	1	1	1	1	1	1	2 (pre), 4 (post)
T2WI	TR	5,040–6,000	5,612	4,800–5,000	5,074	5,050	6,740	3,800–5,300
	TE	64-83	106	101-103	111	72	105	89-92
	ST	4 (ax)2 (co)	4 (ax)2 (co)	5	4 (ax)2 (co)	4 (ax)2 (co)	4 (ax)2 (co)	4 (ax)2 (co)
	FOV	200×200	200×200	180×180	200×200	200×200	200×200	200×200
	ETL	11-23	18	15	3	19	13	16
	Matrix	320×256	300×300	320×224	320×256	320×240	384×278	320×224
	NEX	1	1.5	2	1.6–2	1–3	1–4	3

T1WI: T1-weighted image, T2WI: T2-weighted image, TR: repetition time (msec), TE: echo-time (msec), ST: sice thickness (mm), FOV: field-of-view, ETL: echo train length, NEX: number of excitation, pre: pre-contrast, post: post-contrast.