Change in BPI after cordotomy and its correlation with different postoperative imaging characteristics
| % BPI Change Correlation (n = 10/15) | Spearman Rho | Significance (2-Tailed) |
|---|---|---|
| T2-weighted imaging total cord, % | −0.091 | .802 |
| Diffusion, total cord, % | 0.590 | .073 |
| Major axis (sagittal), T2-weighted imaging, mm | −0.529 | .116 |
| Minor axis (in-plane, axial), T2-weighted imaging, mm | −0.091 | .802 |
| Major axis (sagittal), DWI, mm | 0.705 | .023 |
| Minor axis (in-plane, axial), DWI, mm | 0.827 | .003 |
| Minimal MD | −0.821 | .004 |
| Maximal MD | −0.091 | .802 |
| Average MD | −0.450 | .192 |
| Minimal FA | −0.148 | .688 |
| Maximal FA | 0.255 | .476 |
| Average FA | 0.292 | .413 |