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Spine CT – Benefits and Risks

Benefits

  • Spinal CT is a rapid procedure and offers an accurate evaluation of bone and most soft tissues. Using the latest equipment, the spine may be displayed in multiple planes and three-dimensional imaging is an option.
  • CT is painless, noninvasive and accurate.
  • A major advantage of CT is its ability to image bone, soft tissue and blood vessels all at the same time.
  • CT has been shown to be a cost-effective imaging tool for a wide range of clinical problems.
  • CT can be performed if you have an implanted medical device of any kind, unlike MRI.
  • CT imaging provides real-time imaging, making it a good tool for guiding minimally invasive procedures such as needle biopsies and needle aspirations of many areas of the body, particularly the lungs, abdomen, pelvis and bones.
  • A diagnosis determined by CT may eliminate the need for exploratory surgery and surgical biopsy.
  • No radiation remains in a patient's body after a CT examination.

Risks

  • There is always a slight chance of cancer from excessive exposure to radiation. However, the benefit of an accurate diagnosis will generally outweigh the risk.
  • The effective radiation dose for this procedure varies.
  • Women should always inform their physician and x-ray or CT technologist if there is any possibility that they are pregnant.
  • CT is, in general, not recommended for pregnant women unless medically necessary because of potential risk to the baby.
  • The risk of serious allergic reaction to contrast materials that contain iodine is extremely rare, and radiology departments are well-equipped to deal with them.
  • Manufacturers of intravenous contrast indicate mothers should not breastfeed their babies for 24-48 hours after contrast medium is given.
  • Because children are more sensitive to radiation, they should have a CT exam only if it is essential for making a diagnosis and should not have repeated CT exams unless absolutely necessary. CT exams in children should always be done with low-dose technique.

Watch the CT - What to Expect Video.