Transverse Radiograph
Localizer
1- Cranial L6
2- Middle L6
3- Caudal L6
4- L6-7 Disc
5- Caudal L7
6- L7-S1
Sagittal
Radiograph
Localizer
1- R Sacroiliac Joint
2- R IV Foramina
3- R Lateral Recess
4- Central Canal Discs
5- L IV Foramina
6- L Sacroiliac Joint
Dorsal
Radiograph
Localizer
1- Articular Process Joints
2- Lamina
3- Mid Canal
4- Discs: Nucleus Pulposus
1.
Thecal sac: Synonym dural sac. Soft tissue opacity CT structure
that is enclosed by the dura mater. Tissues inside the thecal sac
include the arachnoid membrane, fluid-filled subarachnoid space,
nerve roots, and spinal cord. Individual soft tissues inside of
the thecal sac are silhouetted in plain CT images and cannot be
discriminated. <Back |