Table 1 Typical parameters for 2D IR-GRE

FOV

300–380 mm

300–380 mm

In-plane voxel size

1.2–1.5 × 1.5–2.0 mm

1.0–1.3 × 1.3–1.7 mm

Matrix size

256 × 194

288 × 230

Slice thickness

7 mm

7 mm

Flip angle

20–30°

15–20°

Segments

13–31

25–40

Inversion time (TI)

Variable

Variable

Bandwidth

130 Hz/pixel

347 Hz/pixel

TE (echo time)

3.38 ms

2.27 ms

TR (repetition time)

8.8 ms

5.03 ms

Gating factor

2

2

K-space ordering

Linear

Linear

Fat Sat

No

No

Asymmetric echo

Yes

Yes

Grad moment refocusing

No

No

Parallel imaging factor

None

2