Table 2.
Seed and target ROI characteristics.
| PD Ipsi. | PD Contra. | Control L/R average | P-value |
||
|---|---|---|---|---|---|
| Ipsi. | Contra. | ||||
| 40-Direction DWI data | |||||
| Volume (voxels) | |||||
| Putamen | 1878 (368) | 1865 (370) | 1853 (350) | 0.75 | 0.88 |
| SN | 381 (104) | 392 (110) | 371 (86) | 0.63 | 0.33 |
| FA | |||||
| Putamen | 0.209 (0.020) | 0.210 (0.023) | 0.205(0.023) | 0.35 | 0.31 |
| SN | 0.546 (0.052) | 0.551 (0.049) | 0.528 (0.035) | 0.07 | 0.02⁎ |
| MD | |||||
| Putamen | 0.00081 (0.00009) | 0.00080 (0.00009) | 0.00079 (0.00005) | 0.22 | 0.88 |
| SN | 0.00078 (0.00006) | 0.00077 (0.00006) | 0.00075 (0.00003) | 0.02⁎ | 0.31 |
| 60-Direction DWI data | |||||
| Volume (voxels) | |||||
| Putamen | 5424 (1051) | 5355 (1056) | 5320 (1024) | 0.66 | 0.89 |
| SN | 1050 (304) | 1085 (312) | 1035 (234) | 0.80 | 0.41 |
| FA | |||||
| Putamen | 0.265 (0.038) | 0.264 (0.031) | 0.256 (0.032) | 0.26 | 0.24 |
| SN | 0.591 (0.077) | 0.602 (0.070) | 0.600 (0.058) | 0.56 | 0.89 |
| Mean diffusivity | |||||
| Putamen | 0.00067 (0.00005) | 0.00067 (0.00006) | 0.00067 (0.00003) | 0.37 | 0.52 |
| SN | 0.00072 (0.00022) | 0.00070 (0.00017) | 0.00067 (0.00010) | 0.23 | 0.38 |
Mean values are displayed with standard deviations in parentheses. Abbreviations: Contra. = contralateral to symptom onset; Ipsi. = ipsilateral to symptom onset; L = left; PD = Parkinson's disease; SD = standard deviation; R = right; ROI = region of interest.
⁎
P < 0.05 for unpaired t-test between PD and control means.