Table 3.
Diffusion-based measures of the CST for stroke and control participants.
| CSD-based tractography |
DTI-based tractography |
|||||||
|---|---|---|---|---|---|---|---|---|
| Stroke |
Control |
Stroke |
Control |
|||||
| Ipsilesional (SD) | Contralesional (SD) | Non-dominant (SD) | Dominant (SD) | Ipsilesional (SD) | Contralesional (SD) | Non-dominant (SD) | Dominant (SD) | |
| Mean FA | 0.41* (0.06) | 0.49 (0.03) | 0.49* (0.02) | 0.51 (0.03) | 0.50 (0.03) | 0.54 (0.02) | 0.53 (0.02) | 0.55 (0.02) |
| Mean ADC (E−4) (mm2/s) | 10.02# (1.09) | 8.80 (0.55) | 8.76# (0.66) | 8.54 (0.44) | 8.80 (0.91) | 8.26 (0.38) | 8.10 (0.17) | 7.88 (0.13) |
| Mean AD (E−4) (mm2/s) | 14.61 (0.94) | 13.92 (0.58) | 13.83 (0.72) | 13.72 (0.69) | 14.16 (1.14) | 13.82 (0.48) | 13.46 (0.33) | 13.39 (0.25) |
| Mean RD (E−4) (mm2/s) | 7.73# (1.23) | 6.25 (0.58) | 6.32# (0.61) | 6.02 (0.49) | 6.12 (0.84) | 5.48 (0.36) | 5.42 (0.19) | 5.13 (0.16) |
| Number of tracts | 86.80* (101.7) | 183.48 (140.2) | 366.17* (173.1) | 250.75 (131.6) | 68.87* (59.6) | 122.19 (74.0) | 160.92* (69.2) | 156.42 (92.2) |
| Tract volume | 8811.26* (6192.8) | 13,093.75 (7998.2) | 19,300.60* (6545.6) | 16,046.07 (6379.0) | 5450.7 (2955.0) | 7474.78 (2951.0) | 8626.20 (2760.8) | 7984.53 (2764.1) |
Significance for comparison between ipsilesional and non-dominant hemispheres with each method. All measures were significantly different between methods (p ≤ 0.015).
*
p < 0.0005.
#
p = 0.001.