Can you give me label saggital sec of mri at level of spinal cord
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sagittal MRI section spinal cord labeled anatomy
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labeled sagittal MRI spinal cord normal anatomy structures
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Here are labeled sagittal MRI images at the level of the spinal cord:
Labeled Sagittal MRI — Spinal Cord
Image 1: T2-weighted Sagittal MRI — Cervical Spine with Ligament Labels
This T2-weighted sagittal MRI (panel a) labels the craniovertebral junction structures:
- Anterior atlantooccipital membrane — connects occiput to the anterior arch of C1
- Anterior arch of C1
- Anterior longitudinal ligament — dark continuous band along anterior vertebral bodies
- C2 vertebral body
- Apical ligament — at the tip of the dens
- Transverse ligament — posterior to the dens
Panel (b) is an axial slice at C1–C2 showing the transverse ligament securing the dens within the atlas, with the spinal cord visible posteriorly.
Image 2: T2-weighted Sagittal MRI — Full Cervical Spine (Normal)
Normal cervical spine — key structures identifiable:
| Structure | MRI Appearance |
|---|---|
| Vertebral bodies | Low-signal cortex, intermediate marrow |
| Intervertebral discs | Bright (hyperintense) central nucleus |
| Spinal cord | Intermediate-signal tubular structure |
| CSF (subarachnoid space) | Bright white (hyperintense on T2) |
| Brainstem | Visible at the superior end |
| Prevertebral soft tissues | Oropharynx, trachea anteriorly |
Image 3: T2-weighted Sagittal MRI — Brain-Cervical Spine Junction with Central Canal
This image extends from the posterior fossa through the cervical cord. Blue arrows point to the central canal of the spinal cord — a thin hyperintense line running centrally within the cord parenchyma. Key visible structures:
- Cerebellum (posterior fossa)
- Brainstem (midbrain → pons → medulla)
- Spinal cord — continuous with the medulla through the foramen magnum
- CSF — bright white surrounding the cord
- Central canal — faint linear structure within the cord (clinically important to distinguish from syringomyelia)
Key Structures to Identify on Any Sagittal Spinal MRI
| Structure | T1 Signal | T2 Signal |
|---|---|---|
| Spinal cord | Intermediate (gray) | Intermediate (gray) |
| CSF | Hypointense (dark) | Hyperintense (bright white) |
| Vertebral body (normal marrow) | Bright (fat) | Intermediate |
| Intervertebral disc | Intermediate | Bright (hydrated nucleus) |
| Posterior longitudinal ligament | Hypointense | Hypointense |
| Anterior longitudinal ligament | Hypointense | Hypointense |
| Spinous processes / posterior elements | Variable | Variable |
The bright CSF on T2 acts as a natural myelogram, making it the preferred sequence for evaluating cord compression, disc herniation, and ligamentous injury.
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