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CT reconstruction technique in lumbar intraneuroforaminal disc herniation
E Volle1, A Kern, G Stoltenburg
1Department of Radiology, Klinikum Charlottenburg, Free University of Berlin, Federal Republic of Germany.
Neuroradiology
|January 1, 1988
Summary
Computed tomography (CT) reformations accurately visualize lumbar neural foramina and disc herniations. This enhanced imaging improves surgical planning for intraneuroforaminal disc herniations.
Area of Science:
- Radiology
- Neurosurgery
- Anatomy
Background:
- Lumbar neural foramina are critical structures for nerve root passage.
- Accurate assessment of disc herniations involving neural foramina is essential for surgical planning.
Purpose of the Study:
- To describe the CT appearance of lumbar neural foramina and their contents.
- To evaluate the utility of CT reformation techniques in diagnosing intraneuroforaminal disc herniations.
Main Methods:
- Direct axial CT scans of the lumbar spine were acquired from 50 normal adults.
- Secondary sagittal, coronal, and paraxial reconstructions were generated.
- CT findings were compared to histopathological specimens and used to evaluate 20 patients with disc herniation.
Main Results:
- Normal parameters for lumbar neural foramina were established.
- A novel paraxial reformation technique effectively visualized intraneuroforaminal disc involvement.
- CT-reformation technique correlated with operative results in 80% of intraneuroforaminal disc herniation cases.
Conclusions:
- CT reformation, particularly paraxial views, enhances the preoperative diagnosis of lumbar disc herniations.
- Improved diagnostic accuracy allows neurosurgeons to optimize surgical approaches for intraneuroforaminal disc herniations.