Table 1 Parameters of the two investigated EPI DWI sequence variants
Sequence variant | High resolution (“highRes”) | High SNR (“highSNR”) |
|---|---|---|
b-values (s/mm2) | 0, 100, 250, 500, 800 | 0, 100, 250, 500, 800 |
Acquisition time (min:s) | 6:36 | 6:20 |
Slice thickness (mm) | 5 | 7 |
Number of slices | 20 | 14 |
Acquisition matrix | 90 × 90 | 80 × 80 |
In-plane acquisition matrix resolution (mm2) | 3.0 × 3.0 | 3.5 × 3.5 |
In-plane image resolution after zero-filling interpolation (mm2) | 1.5 × 1.5 | 1.75 × 1.75 |
Field-of-view (mm3) | 270 × 270 × 100 | 280 × 280 × 98 |
Number of averages | 9 | 11 |
TR/TE (ms) | 3300/110 | 2600/110 |
Bandwidth (Hz/pixel) | 1355 | 1359 |
Flip angle | 90° | 90° |