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Table 3: 
Assessment of interval changes of specific MR imaging findings at follow-up MR imaging compared with baseline MR imaging
(n = 33)*ImprovedEquivocalWorseFindings Absent at Baseline and Follow-Up MRI
Disk space enhancement4 (13)11 (34)12 (38)5 (16)
T2 disk space signal14 (42)11 (33)5 (15)3 (9)
Epidural enhancement21 (66)5 (16)3 (9)3 (9)
Epidural canal abscess15 (47)1 (3)1 (3)15 (47)
Paraspinal inflammation16 (50)8 (25)4 (13)4 (13)
Bone marrow edema3 (9)22 (67)7 (21)1 (3)
Vertebral body enhancement8 (24)18 (55)6 (18)1 (3)
  • Note:—Values represent No. (%).
  • * One patient did not receive contrast on the follow-up MRI, and therefore was not included in the evaluation of epidural, paraspinal, and disk space enhancement changes.