3.0 Tesla vs 1.5 Tesla breast magnetic resonance imaging in newly diagnosed breast cancer patients

Table 1 1.5 and 3.0 Tesla magnetic resonance imaging protocol

Parameter	Axial T2	Axial T1 3D GRE no FS	Axial T1 pre 3D GRE	Axial T1 post 3D GRE
1.5 Tesla
TR (ms)	5811	8.3	5.2	5.2
TE (ms)	60	4.5	2.42	2.42
Fat saturation	STIR	No	Yes	Yes
Flip angle	165	20	10	10
Field of view (mm)	340	340	340	340
Matrix	384 × 230	320 × 320	320 × 320	320 × 320
Slice thickness (mm)	5	1	1	1
Voxel size (mm3)	0.8 × 1.4 × 5.0	1.0 × 1.0 × 1.0	1.0 × 1.0 × 1.0	1.0 × 1.0 × 1.0
Bandwidth (Hz/pixel)	250	347	391	391
Imaging time (min:s)	2:50	2:50	2:2	2:26
3.0 Tesla
TR (ms)	11660	4.57	4.57	3.99
TE (ms)	69	2.46	2.46	1.61
Fat saturation	STIR	No	Yes	Yes
Flip angle	120	10	10	9
Field of view (mm)	324	323	323	323
Matrix	384 × 384	448 × 448	448 × 448	448 × 448
Slice thickness (mm)	3	0.7	0.7	0.7
Voxel size (mm3)	0.8 × 0.8 × 3.0	0.7 × 0.7 × 0.7	0.7 × 0.7 × 0.7	0.7 × 0.7 × 0.7
Bandwidth (Hz/pixel)	246	319	698	698
Imaging time (min:s)	2:45	2:33	2:33	2:33

TR: Repetition time; TE: Echo time; GRE: Gradient echo sequence; FS: Fat suppression.