Table 1 Imaging parameters of non-contrast-enhanced REACT cardiovascular magnetic resonance angiography (CMRA) and contrast-enhanced steady-state- and first-pass-CMRA

Orientation

Coronal

Coronal

Coronal

Acquisition matrix (mm³)

252 × 285 × 188

288 × 194 × 120

352 × 240 × 70

Field of view (mm³)

400 × 457 × 150

360 × 360 × 150

400 × 370 × 126

Voxel size (mm³), acquired

1.6 × 1.6 × 1.6

1.25 × 1.85 × 2.5

1.14 × 1.54 × 3.6

Voxel size (mm³), reconstructed

0.8 × 0.8 × 0.8

0.8 × 0.8 × 1.25

0.76 × 0.76 × 1.8

T2 prep/inversion delay time (ms)

50/~70

–/270

–/–

Fat suppression

Dual–echo Dixon

–

Subtraction

TR/TE₁/TE₂ (ms)

5.8/1.72/3.8

3.2/1.01/-

3.5/1.13/-

Electrocardiogram gating

Yes

Yes

No

Turbo field echo factor

60

31

–

Respiratory navigator gating

Yes

Yes

No (breath–holding)

Flip angle (degree)

15

20

40

Parallel imaging (SENSE) factor

3.2

4

3.5

Nominal acquisition duration (min)

3:24

2:46

0:56