Figure 4: Scans
1 Pre-procedural sagittal T1-weighted Scan: hypointense signal in L1
2 Post-procedural sagittal T1-weighted Scan: hypointense signal in L1
3 Pre-procedural sagittal TIRM-weighted Scan: hyperintense signal in L1
4 Post-procedural sagittal TIRM-weighted Scan: hyperintense signal in L1 and discs