Get answers to your Spine related questions.
Spinal CT; CT - lumbosacral spine
The most common type of contrast given into a vein contains iodine. If a person with an iodine allergy is given this type of contrast, hives, itching, nausea, breathing difficulty, or other symptoms may occur.
If you have diabetes or are on kidney dialysis, talk to your health care provider before the test about your risks.
CT scans and other x-rays are strictly monitored and controlled to make sure they use the least amount of radiation. CT scans do create low levels of ionizing radiation, which have the potential to cause cancer and other defects. However, the risk associated with any individual scan is small. The risk increases as numerous additional studies are performed.
In some cases, a CT scan may still be done if the benefits greatly outweigh the risks. For example, it can be more risky not to have the exam, especially if your health care provider thinks you might have cancer.
Pregnant or breastfeeding women should consult their health care provider about the risk of CT scans to the baby.
Bhatia RG, Sklar EM. Neuroimaging: Structural neuroimaging. In: Bradley WG, Daroff RB, Fenichel GM, Jankovic J, eds. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa: Butterworth-Heinemann; 2008:chap 36A.
Grainger RG, Thomsen HS, Morcos SK, Koh DM, Roditi G. Intravascular contrast media for radiology, CT and MRI. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 2.
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