Comparison of longitudinal and transverse ADCs and anisotropy indices among spinal cord tracts in PF and GL-PF specimens
| Spinal Cord Tract | PF lADC (10−4 mm2/s) Mean ± SE | GL-PF lADC (10−4 mm2/s) Mean ± SE | P Value Comparison of lADC Values | PF tADC (10−4 mm2/s) Mean ± SE | GL-PF tADC (10−4 mm2/s) Mean ± SE | P Value Comparison of tADC Values | PF (AI = tADC/lADC) Mean ± SE | GL and PF (AI = tADC/lADC) Mean ± SE | P Value Comparison of AI Values |
|---|---|---|---|---|---|---|---|---|---|
| dCST | 7.459 ± 0.473 | 8.531 ± 0.432 | P = .129 | 0.834 ± 0.067 | 0.843 ± 0.061As ANOVA was Not significant, No post hoc test Comparisons were performed for rows 5-7 | 0.113 ± 0.009 | 0.100 ± 0.008 | P = .355 | |
| FG | 8.788 ± 0.363 | 9.857 ± 0.332 | P = .058 | 1.055 ± 0.076 | 1.082 ± 0.069 | 0.121 ± 0.011 | 0.112 ± 0.010 | P = .568 | |
| FC | 8.665 ± 0.385 | 9.460 ± 0.351 | P = .161 | 1.063 ± 0.066 | 1.145 ± 0.061 | 0.124 ± 0.010 | 0.123 ± 0.010 | P = .937 | |
| VST | 8.893 ± 0.322 | 10.358 ± 0.294 | P = .0083 | 1.411 ± 0.093 | 1.390 ± 0.084 | 0.159 ± 0.011 | 0.135 ± 0.010 | P = .119 | |
| RST | 8.248 ± 0.304 | 9.947 ± 0.277 | P = .0026 | 1.099 ± 0.057 | 1.015 ± 0.052 | 0.134 ± 0.007 | 0.103 ± 0.007 | P = .012 | |
| ReST | 7.180 ± 0.306 | 8.594 ± 0.280 | P = .0078 | 1.029 ± 0.073 | 1.064 ± 0.067 | 0.143 ± 0.010 | 0.125 ± 0.009 | P = .189 |
Note.—Significant elevations (P < .0083, significant results italicized) of the lADC were seen in the VST, RST, and ReST of the GL-PL specimens as compared with PF specimens. Post hoc comparisons of tADC values between fixatives were not performed, as the ANOVA was not significant. No significant differences (P < .0083) were seen in the AI of individual tracts between the GL-PF specimens and the PF specimens (SE = standard error).