Image Type Lumbar Spine X-Ray CT Scan MRI Scan Anteroposterior (AP) Canal Diameter Cauda Equina Nerve Root Area Conus Medullaris Level Cross-Sectional Area (CSA) of Spinal Canal Disc-Height Index (DHI) Disc Herniation Size Disc Herniation Types Dural Sac CSA Epidural Fat Thickness Filum Terminale Thickness Foraminal Height and Width High-intensity Zone (HIZ) Lateral Recess Width/Depth Modic Endplate Changes (Type I, II, III) Modic (Marrow Signal) Changes Pfirrmann Classification (I-V) Vertebral Bone Quality (VBQ) Score Vertebral Endplate Defects
