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Table 1: 
Change in BPI after cordotomy and its correlation with different postoperative imaging characteristics
% BPI Change Correlation (n = 10/15)Spearman RhoSignificance (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, mm0.705.023
Minor axis (in-plane, axial), DWI, mm0.827.003
Minimal MD−0.821.004
Maximal MD−0.091.802
Average MD−0.450.192
Minimal FA−0.148.688
Maximal FA0.255.476
Average FA0.292.413