The role of cerebrospinal fluid cross-section area ratio in the prediction of dural ossification and clinical outcomes in patients with thoracic ossification of ligamentum flavum

摘要

Radiographic measurement. (A) Normal spinal canal at the pedicle level of the maximum compression segment. (B) Cross-section area (CSA) of the normal spinal canal. (C) Axial view of computed tomography scan at the segment of maximum compression. (D) CSA of the ossified mass. (E) Magnetic resonance imaging (MRI) at the pedicle level. (F) Measurement of CSA of the dural sac at the pedicle level. (G) MRI at the segment of maximum compression. (H) CSA of the spinal cord