Table 3.
FA, RD and streamline count for the left and right ILF, IFOF, UF, CST, in addition to grey and WM volumes of the cerebellum, in healthy control, surgery and radiation groups.
| Healthy control | Surgery | Radiation | F value | p value | η2p | ||
|---|---|---|---|---|---|---|---|
| IFOF | |||||||
| FA | Left | 0.474 (0.019) | 0.469 (0.021) | 0.474 (0.020) | 0.34 | 0.71 | 0.02 |
| Right | 0.477 (0.020) | 0.475 (0.021) | 0.477 (0.025) | 0.09 | 0.91 | < 0.01 | |
| RD | Left | 0.00058 (0.00002) | 0.00060 (0.00004) | 0.00059 (0.00004) | 1.56 | 0.22 | 0.07 |
| Right | 0.00058 (0.00003) | 0.00060 (0.00003) | 0.00058 (0.00005) | 1.32 | 0.28 | 0.06 | |
| Streamline count | Left | 22.12 (15.374) | 21.46 (16.071) | 21.93 (18.258) | 0.02 | 0.98 | < 0.01 |
| Right | 26.71 (24.443) | 27.62 (14.327) | 32.20 (21.492) | 0.09 | 0.92 | < 0.01 | |
| ILF | |||||||
| FA | Left | 0.427 (0.027) | 0.424 (0.021) | 0.430 (0.029) | 0.19 | 0.83 | < 0.01 |
| Right | 0.432 (0.024) | 0.426 (0.027) | 0.430 (0.029) | 0.33 | 0.72 | 0.02 | |
| RD | Left | 0.00062 (0.00003) | 0.00064 (0.00003) | 0.00063 (0.00005) | 1.49 | 0.24 | 0.07 |
| Right | 0.00062 (0.00003) | 0.00064 (0.00004) | 0.00063 (0.00005) | 1.92 | 0.16 | 0.09 | |
| Streamline count | Left | 195.88 (112.055) | 129.31 (60.289) | 122.20 (60.521) | 3.13 | 0.05 | 0.12 |
| Right | 189.12 (118.137) | 145.54 (54.428) | 184.07 (109.852) | 0.76 | 0.47 | 0.04 | |
| UF | |||||||
| FA | Left | 0.409 (0.013) | 0.406 (0.020) | 0.405 (0.026) | 0.18 | 0.83 | < 0.01 |
| Right | 0.394 (0.012) | 0.397 (0.029) | 0.389 (0.025) | 0.65 | 0.53 | 0.03 | |
| RD | Left | 0.00062 (0.00002) | 0.00063 (0.00002) | 0.00062 (0.00003) | 0.83 | 0.44 | 0.04 |
| Right | 0.00063 (0.00001) | 0.00063 (0.00003) | 0.00063 (0.00003) | 0.24 | 0.79 | 0.01 | |
| Streamline count | Left | 138.59 (89.348) | 130.08 (115.008) | 127.67 (101.384) | 0.29 | 0.75 | 0.01 |
| Right | 346.53 (217.386) | 365.77 (156.084) | 305.87 (164.237) | 0.56 | 0.58 | 0.03 | |
| CST | |||||||
| FA | Left | 0.512 (0.025) | 0.517 (0.030) | 0.511 (0.031) | 0.40 | 0.67 | 0.02 |
| Right | 0.523 (0.031) | 0.526 (0.027) | 0.526 (0.025) | 0.03 | 0.98 | < 0.01 | |
| RD | Left | 0.00053 (0.00003) | 0.00053 (0.00003) | 0.00054 (0.00003) | 1.49 | 0.24 | 0.07 |
| Right | 0.00051 (0.00003) | 0.00052 (0.00003) | 0.00052 (0.00004) | 0.44 | 0.65 | 0.02 | |
| Streamline count | Left | 77.24 (57.169) | 70.46 (39.677) | 113.53 (91.114) | 2.10 | 0.14 | 0.09 |
| Right | 91.47 (61.327) | 74.38 (45.154) | 81.87 (41.578) | 0.80 | 0.46 | 0.04 | |
| Cerebellar volumes | |||||||
| White Matter | Left | 0.84 (0.09)a | 0.74 (0.11)b | 0.62 (0.17)a,b | 12.78 | < 0.001 | 0.38 |
| Right | 0.79 (0.08)c,d | 0.57 (0.17)c | 0.61 (0.17)d | 11.55 | < 0.001 | 0.36 | |
| Grey Matter | Left | 3.38 (0.32)e | 3.06 (0.41) | 2.87 (0.57)e | 4.31 | 0.02 | 0.17 |
| Right | 3.43 (0.30) f,g | 2.68 (0.61)f | 2.90 (0.44)g | 11.02 | < 0.001 | 0.34 | |
Matching letters in different rows indicate a significant difference (p < .05) between groups as follows. Mean: a p < .001; b p = .02; c p < .001; d p < .01; e p = .02; f p < .001; gp < .01.
Abbreviations: IFOF = inferior frontal occipital fasciculus; ILF = inferior longitudinal fasciculus; UF = uncinate fasciculus; CST = corticospinal tract; FA = fractional anisotropy; RD = radial diffusivity.