| |
2D velocity acquisition
|
4D velocity acquisition
|
|---|
|
Field of view (mm)
|
150 x 300
|
200 x 300
|
|
Acquired voxel size (mm)
|
2.3 x 2.3 x 7
|
2.4 x 2.5 x 2.5
|
|
Reconstructed voxel size (mm)
|
1.2 x 1.2 x 7
|
1.5 x 1.5 x 2.3
|
|
Number of slices
|
1
|
25-40
|
|
Cardiac gating
|
Retrospective
|
Retrospective
|
|
Respiratory motion
|
Non-gated
|
Non-gated
|
|
Free breathing
|
Free breathing
|
|
NSA
|
2
|
1
|
|
TR(ms)/TE(ms)
|
5/3
|
3.2 /1.9
|
|
Flip angle (°)
|
10
|
5
|
|
SENSE
|
No
|
2
|
|
Reconstructed cardiac phases
|
35-40
|
22-25
|
|
VEC (cm/s)
|
60-100 (venous vessels) 200–400 (arterial vessels)
|
150-400
|
- 2D, two-dimensional; 4D, four-dimensional; CMR, cardiovascular magnetic resonance; NSA, number of signal averages; SENSE, sensitivity encoding for fast CMR; TR, repetition time; TE, echo time; VEC, velocity encoding.
