Fig. 2
Sagittal and axial MR images of four different individuals included in this study. The measurements of the dural sac (DS) are shown in white, and those of the epidural fat (EF) are shown in black. a MRI of a control showing a normal amount of EF at T7 with an EF ratio (EFRA) of 0.22. b MRI of a patient with congenital kyphosis showing an increased amount of EF at T7 with an EFRA of 0.57. c MRI of a patient with Scheuermann kyphosis showing an increased amount of EF at T7 with an EFRA of 0.42. d MRI of a patient with tuberculotic kyphosis showing an increased amount of EF at T3 with an EFRA of 0.64