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Lumbosacral spine CTDefinition A lumbosacral spine CT is a computed topography of the lower spine and surrounding tissues. How the test is performed The CT is performed with the patient lying face-up. In some cases, an iodine-based contrast dye may be injected into a vein to help visualize tissues. In other cases, a CT of the lumbosacral spine may be performed after injecting contrast dye into the spinal canal during a lumbar puncture to further evaluate for nerve root compression. The scan will usually last a few minutes. How to prepare for the test The patient should remove all jewelry or other metals that may cause inaccurate images. How the test will feel The x-rays are painless. The primary discomfort may be from the need to lie still on the table. If intravenous contrast dye is given, the patient may initially feel a slight burning sensation within the injected arm, a metallic taste in the mouth, and a warm flushing of the body. These sensations are normal and usually reside within a few seconds.Why the test is performed A CT scan is an excellent tool for evaluating fractures and degenerative changes of the spine (such as from arthritis). MRI is a superior exam for imaging the spinal cord and intervertebral discs. What abnormal results mean Conditions that may be revealed include:
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Page Content: Spinal CT; CT - lumbosacral spine |
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