Table 1.
Precision analysis: summary of the group-average statistics for the signed distance (SD) and absolute distance (AD) measure (in mm) between test and retest surfaces (surface: DF—DELFMAP, FS—FreeSurfer; L/R: left/right hemisphere; mean: a group average of a surface-wise mean of the distance; stdev: a group average of a surface-wise stdev of the distance; “>X mm (%)”: (group-average) percentage of surface points where AD was greater than X mm; values in parentheses indicate the statistical spread within the group, measured by the group-wise stdev).
| Surface | L/R | Signed distance | Absolute distance | ||||
|---|---|---|---|---|---|---|---|
| Mean (mm) | stdev (mm) | Mean (mm) | stdev (mm) | >1 mm (%) | >2 mm (%) | ||
| DF pial | L | −0.02 (0.03) | 0.35 (0.06) | 0.24 (0.02) | 0.25 (0.04) | 1.4 (0.3) | 0.2 (0.1) |
| R | −0.01 (0.04) | 0.37 (0.09) | 0.25 (0.02) | 0.26 (0.06) | 1.5 (0.4) | 0.2 (0.2) | |
| FS pial | L | −0.02 (0.04) | 0.37 (0.10) | 0.24 (0.02) | 0.28 (0.06) | 1.9 (0.4) | 0.3 (0.2) |
| R | −0.03 (0.04) | 0.39 (0.13) | 0.24 (0.03) | 0.29 (0.08) | 2.0 (0.4) | 0.3 (0.2) | |
| DF white | L | −0.01 (0.07) | 0.34 (0.08) | 0.24 (0.02) | 0.24 (0.05) | 1.0 (0.3) | 0.2 (0.1) |
| R | +0.02 (0.06) | 0.35 (0.11) | 0.24 (0.03) | 0.24 (0.07) | 1.0 (0.3) | 0.2 (0.2) | |
| FS white | L | +0.02 (0.02) | 0.31 (0.10) | 0.19 (0.02) | 0.23 (0.07) | 1.0 (0.3) | 0.2 (0.2) |
| R | +0.01 (0.02) | 0.31 (0.13) | 0.19 (0.03) | 0.23 (0.08) | 0.9 (0.3) | 0.2 (0.2) | |