Outlining what MRI misses
Contrast dye placed in the spinal sac coats the cord and nerve roots, and CT slices then show exactly where the outline narrows or deforms.
Diagnostics · Invasive
Myelography
An imaging study of the spinal canal using contrast dye to outline the cord and nerves.
What it is
The backup when MRI cannot answer
Before MRI existed, myelography was the standard; today it is the specialist reserve — deployed where MRI is impossible, degraded or ambiguous, and where a surgical decision needs confirmation it cannot otherwise provide.
When MRI is not enough
Typically reserved for cases where MRI is inconclusive, contraindicated by implants, or degraded by previous metalwork — or to confirm a level before surgery.
Dynamic information
Because images can be taken in different positions, myelography can reveal narrowing that appears only under load or movement.
Invasive with reason
It involves a spinal puncture, so it is used only when the answer genuinely changes the plan — never as routine.
Invasive diagnostics are used only when the result will change the plan. Suitability is assessed individually.
Common questions
Things patients ask us
How is this different from an MRI?
MRI images tissue directly and non-invasively. Myelography images the fluid space around the cord with contrast — useful precisely where MRI falls short, such as around metal implants.
Does the spinal puncture hurt?
The skin and deeper tissues are numbed first. Most people feel pressure rather than pain, plus a brief headache risk the team explains beforehand.
What must I disclose beforehand?
Blood thinners, infections, seizure history, kidney disease, allergies and pregnancy all matter. Bring a full medication list so the team can plan safely.
What happens afterwards?
You rest flat for a period and drink fluids while the contrast clears. The team gives exact aftercare instructions for your case.
Start with your case.
Send your history and any imaging you already have. The ProSpine team will review your case and respond with the next steps.
Free · No obligation · Reviewed by the ProSpine team