Table 1 Acquisition parameters of contrast-enhanced first-pass cardiovascular magnetic resonance angiography (CMRA) and modified Dixon (mDixon) steady-state CMRA

Time of echo (msec)

1.60

1.93

Time of repetition (msec)

5.0

5.1

Total scan duration (min)

1:02 (15.2 s./per dynamic)

1:56

Acquired voxel size (mm)

1.7 × 1.7 × 3.4

1.20 × 1.20 × 2.40

Reconstructed voxel size (mm)

1.61 × 1.61 × 1.7

0.62 × 0.62 × 1.2

Turbo field echo factor

–

19

Field of view (mm)

360 × 360 × 139

240 × 240 × 96

Matrix (slices)

212 × 212 × 82

200 × 199 × 80

Compressed sensing

No

Yes, factor 6

Parallel imaging factor

Yes. P reduction (RL) 4, S reduction (AP) 1

No

Slice orientation

Coronal

Coronal

Number of slices

82

80

Fat suppression technique

Subtraction

mDixon

Flip angle

30

20

Cardiac synchronization device

−

ECG

Respiratory compensation

−

Navigator respiratory compensation gating. Gating window 2 (7)

Maximum intensity projection (slice thickness/gap, mm)

3.4/1.7

4/2

Acquisition mode

Cartesian

Cartesian