Table 2.
Freesurfer summary data quality measures of the initial T1-weighted volume protocols and their ranking relative to the other protocols in parentheses
| Bert | A | B | C* | D | E | F* | ||
|---|---|---|---|---|---|---|---|---|
|
Euler No. |
Right |
−40 |
−396 (1) |
−62 (5) |
−66 (4) |
−78 (3) |
−94 (2) |
−40 (6) |
| |
Left |
−58 |
−510 (1) |
−88 (2) |
−72 (4) |
−62 (5) |
−74 (3) |
−52 (6) |
|
CNR |
Grey/white |
2.02 |
1.50 (1) |
2.21 (2) |
2.5 (4) |
2.59 (5) |
2.26 (3) |
2.86 (6) |
| |
Grey/CSF |
1.09 |
0.51 (1) |
0.69 (2) |
0.78 (5) |
0.73 (3) |
0.75 (4) |
0.94 (6) |
| sum of scores | 4 | 11 | 17 | 16 | 12 | 24 |
Protocols with better summary data quality measures are given higher scores.
Criteria:
Euler No : the less negative the better,
Grey/white CNR: the bigger the better,
Grey/CSF CNR : the bigger the better,
Total CNR : the bigger the better.
* The MRI protocols taken forward to the next step.