Parameter
|
Image Sequence
|
T1-Mapping
|
T2-Mapping
|
General
|
Sequence type |
3D, Inversion-recovery with gradient-spoiled, gradient-recalled echo readout |
2D, single slice, multiple-spin-echo |
Preparation phases |
Receiver gain, center frequency, VOI shim |
Receiver gain, center frequency, VOI shim |
Number of excitations |
1 |
2 |
Total scan duration (min:sec) |
1:44 |
12:04 |
Geometry
|
Anatomical plane(s) |
Axial |
Axial |
Number of slices |
11 |
1 |
Slice thickness (mm) |
7 |
7 |
Inter-slice gap (mm) |
0 |
0 |
Acquired matrix |
128 x 128 x 6 |
128 x 128 |
Reconstructed matrix |
128 x 128 x 11 |
128 x 128 |
Field of view (mm) |
256 x 256 x 77 |
256 x 256 |
Reconstructed voxel size (mm) |
2.00 x 2.00 x 7.00 |
2.00 x 2.00 x 7.00 |
Contrast
|
Repetition time (ms) |
Varied |
4000 |
Inversion pulse |
180°, 1 ms, shape: block |
N/A |
Inversion recovery times (ms) |
50, 100, 200, 500, 1000, 2000, 6000 |
N/A |
Pre-delay time (ms) |
1500 |
N/A |
Fat signal suppression (when used) |
1331 binomial water-selective excitation |
SPAIR (power: 2 μT, inversion delay 202 ms, frequency offset 250 Hz); Sinc-Gauss pre-pulse (90°, duration: 18 ms, frequency offset: 100 Hz) |
Excitation flip angle (°) |
10 |
90 |
Refocusing pulse |
N/A |
Version-S |
Echo time (ms) |
N/A |
{14, 28, 42…280} |
Number of echoes/ echo spacing (ms) |
N/A |
N/A |
RF shimming |
Adaptive |
Adaptive |
Signal acquisition
|
Readout type |
Cartesian |
Cartesian |
Parallel imaging |
SENSE (g=1.5) |
SENSE (g=1.5) |
Bandwidth/pixel (Hz/pixel) |
383 |
335.1 |