Tests Used in Making a Multiple Sclerosis Diagnosis
Recent advances in technology have helped doctors diagnose people with
MS earlier than in times past. Magnetic resonance imaging (MRI), a non-invasive form of taking pictures of the brain to detect MS lesions, has been particularly helpful in this area.
- Blood tests
- A spinal tap
- An electrical test called "evoked potentials," which tests the function of your sensory nerves.
How MRIs Help Make a Multiple Sclerosis Diagnosis
As mentioned, the best test for
diagnosing MS is MRI (magnetic resonance imaging). MRI is painless, noninvasive, and does not expose the body to radiation. MRI produces x-ray-like images that are better than other methods for seeing certain areas of the central nervous system. With an MRI scan, it is possible to see the places where myelin has been damaged.
More than one MRI may be done over time. Several MRIs can show plaques appearing in different areas of the central nervous system at different times. This confirms a multiple sclerosis diagnosis.
How a Spinal Tap Helps Make a Multiple Sclerosis Diagnosis
A sample of fluid from your spine may be analyzed for protein changes that are often found in people who have MS. This is called a spinal tap, LP, or lumbar puncture.
Other Tests Used to Make a Multiple Sclerosis Diagnosis
If the diagnosis of MS is still uncertain after an MRI or spinal tap, your healthcare provider may do a test that measures how fast your nerves conduct impulses. This is called an evoked potentials test.
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