What is the role of CT myelography in the diagnosis of cervical disc disease?

Updated: Apr 16, 2020
  • Author: Michael B Furman, MD, MS; Chief Editor: Dean H Hommer, MD  more...
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  • A myelogram followed by a CT scan may be obtained prior to cervical decompressive spinal cord or nerve root surgery.

  • This study evaluates the spinal canal, its relationship to the spinal cord, and nerve root impingement from disc, spur, or foraminal encroachment.

  • CT myelography, still the criterion standard, remains superior to MRI in detecting lateral and foraminal encroachment, despite greater expense and morbidity. Consequently, CT myelography is not the initial imaging study to evaluate cervical spine and is reserved for complicated cases.

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