Table 1 Cardiovascular imaging parameters of native relaxation-enhanced angiography without contrast (REACT) and contrast-enhanced steady-state magnetic resonance angiography (CMRA) used in the present study

Time of echo (ms)

1.42/2.8

1.93/3.4

Time of repetition (ms)

4.7

5.1

Orientation

Coronal

Coronal

Voxel size (mm³), acquired

1.39 × 1.40 × 1.40

1.19 × 1.20 × 2.40

Voxel size (mm³), reconstructed

0.45 × 0.45 × 0.70

0.69 × 0.69 × 1.20

Acquisition matrix (mm³)

216 × 214 × 125

252 × 249 × 80

Field of view (mm³)

300 × 300 × 88

300 × 300 × 96

Sampling of k-space

Cartesian

Cartesian

T2 prep/inversion delay time (ms)

50/10.8

No/320

Turbo field echo factor

31

19

Flip angle (°)

15

20

Compressed SENSE

Yes, factor 5

Yes, factor 6

Electrocardiogram gating

Yes

Yes

Number of heart phases

1 (single phase)

1 (single phase)

Respiratory gating

Yes, gating window (7 mm)

Yes, gating window (7 mm)