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Table 3 Technical parameters

From: Pediatric cardiovascular interventional devices: effect on CMR images at 1.5 and 3 Tesla

 

2D balanced-SSFP dynamic 2D balanced-SSFP cine -CMR

3D-GRE dynamic time-resolved MRA

Phase-contrast 2D-GRE

3D-GRE high-resolution MRA

 

1.5T

3T

1.5T

3T

1.5T

3T

1.5T

3T

TR

4.0

3.61

3.05

3.05

9.4

9.4

3.18

3.18

TE

1.73

1.52

1.28

1.28

2

2

1.31

1.31

Flip angle

60

80

22

25

30

30

19

30

Pixel bandwidth

914

977

751

751

554

554

610

610

Matrix

304×243

320×240

512×347

512×347

192×192

192×192

512×358

512×358

In-plane resolution (mm2)

1 × 1.25

1 x 1.33

0.61 × 0.93

0.61 x 0.93

1.66 × 1.66

1.66 × 1.66

0.68 × 0.98

0.68 × 0.98

Slice thickness

2

2.5

1

1

5.5

5.5

1

1

Grappa acceleration factor

2

2

2

2

2

2

2

2