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Sudden paraparesis due to spinal cord ischemia with initial contrast Thank you! Cauda equina syndrome refers to a collection of symptoms and signs that result from severe compression of the descending lumbar and sacral nerve roots. If you have any of these symptoms, see your doctor right away: Severe low . Arachnoiditis | Radiology Reference Article | Radiopaedia.org ^ -%B9yJS Patients who do not improve within one month should obtain magnetic resonance imaging if a herniated disc is suspected. A contrast MRI uses a contrast agent while non-contrast MRIs dont. It is not a new or separate disease but often a natural evolutionary part of lumbar spinal canal stenosis secondary to degenerative processes[4]. It should be used only to confirm an initial diagnosis, not as the primary diagnostic tool. Please note: your email address is provided to the journal, which may use this information for marketing purposes. S. CRAIG HUMPHREYS, M.D., JASON C. ECK, M.S., AND SCOTT D. HODGES, D.O. A primary spine tumor or cancer metastases, An infection that has gotten into your spinal cord, Narrowing of the spinal canal for any reason, Inflammatory spinal disorders such as ankylosing spondylitis (inflammatory arthritis). wikiHow is where trusted research and expert knowledge come together. MRI equipment and other high-touched surfaces are disinfected with EPA-approved sanitizer between each scan. Your submission has been received! There are 10 references cited in this article, which can be found at the bottom of the page. Bone scintigraphy, the most common form of nuclear medicine, detects biochemical changes through images that are produced by scanning and mapping the presence of radiographic compounds (usually technetium Tc 99m phosphate or gallium 67 citrate). Many adults will experience low back pain at some time in their lives. This is needed to decompress the nerves.