Statistical analysis of the increase in rCBF in preoperative, early postrecovery, and late postrecovery periodsa
| Area | Side | Z score | x | y | z (mm) |
|---|---|---|---|---|---|
| Preoperative stage (precision grip − control) | |||||
| M1 | Contra-used hand | 9.11 | 16.5 | 18.5 | 30.5 |
| Cb | Ipsi-used hand | 6.7 | −6 | −14.5 | 6 |
| Area 5 | Contra-used hand | 4.23 | 14 | 4.5 | 30 |
| S1 | Contra-used hand | 4.14 | 24.5 | 9.5 | 34 |
| PMd | Contra-used hand | 5.23 | 12 | 25 | 29 |
| Early postrecovery (precision grip − control) > prelesion (precision grip − control) | |||||
| PMv | Contra | 5.80 | −23.5 | 30.5 | 18.5 |
| PMv | Ipsi | 4.67 | 25 | 28 | 15 |
| TE | Ipsi | 4.17 | 29 | −7 | −8 |
| Cb | Contra | 3.65 | −14.5 | −16 | 6 |
| S2 | Contra | 4.71 | −27 | 23 | 15 |
| Late postrecovery (precision grip − control) > prelesion (precision grip − control) | |||||
| PMv | Ipsi | 4.29 | 24 | 29 | 18 |
| V4/TEO | Contra | 4.11 | −29 | −2 | 16 |
| V4/TEO | Ipsi | 5.6 | 25 | −4 | 17 |
↵a The rCBF was related to functional recovery during both the early and late postrecovery periods compared with that during the prelesion stage. Z scores of the peak voxels are indicated. The locations are indicated by the positions along the x (ipsilateral–contralateral), y (rostrocaudal), and z (dorsoventral) axes of the Horsley-Clarke stereotaxic coordinates. Cb, Cerebellar cortex; contra, contralesional hemisphere; ipsi, ipsilesional hemisphere; PMd, dorsal premotor area; S2, secondary somatosensory area; TEO, area TEO; V4, fourth visual area.