Computed Tomography of the Spine
- What is a CT of the spine?
- Why might my doctor recommend a CT of my spine?
- How should I prepare for a CT of my spine?
- What type of equipment is used for a CT of the spine?
- How does a CT of the spine work?
- Will I experience pain during a CT of my spine
- How will I get the test results for a CT of my spine?
What is a CT of the spine?
A CT of the spine is a type of scan that uses special equipment to obtain multiple images of the spinal column, some of which are three dimensional. These CT images are far more detailed than those obtained from conventional X-rays. The scan also is used as a diagnostic tool because of its ability to display different types of tissue in the same region, including bone, muscle, soft tissue, and blood vessels.
Why might my doctor recommend a CT of my spine?
CT scanning of the spine may be recommended for a variety of reasons. It can help to:
- Detect spinal damage in patients who have been injured.
- Detect tumors in the vertebral column.
- Provide important information to patients with narrowing of the spinal canal, vertebral fracture, infection, and arthritis.
- Measure bone density to predict the likelihood of vertebral fractures.
How should I prepare for my CT of the spine?
To prepare for a CT scan, we recommend you dress comfortably. Also, avoid any clothing that contains metal objects, such as snaps or zippers that can affect the CT image. You will not be asked to wear a gown unless the technician feels your clothing could affect the results of the scan. Depending on your individual scan, you may receive a contrast injection. Contrast material is a dye that makes your organs and blood vessels more visible when you are scanned. If contrast is used, you will be asked not to eat or drink for 4 hours prior to the procedure. After the scan you should drink plenty of liquids to help flush the contrast out of your system.
What type of equipment is used for a CT of the spine?
The CT scanner is a specialized machine that looks like a large doughnut. You will lay on a movable table that goes in and out of the center of the machine. Most CT studies use an advanced unit called a spiral CT that records a large number of pictures in a short time.
How does a CT of the spine work?
A CT of the spine requires you to lie flat on your back. A rotating device spins around your body creating a beam of xXrays. A detector takes snapshots of the beam after it passes through your body and a powerful computer program then processes the images and displays them in different ways for examination. The technician will communicate with you throughout the procedure, but will need to leave the room briefly to run the computer. A radiologist then reviews the images to look at the area in question. The scan will take about 5-10 minutes and the entire experience should last no more than 30 minutes.
Will I experience pain during a CT of my spine?
No, CT scanning is a painless procedure. If contrast material is used, you may feel flushed or get a metallic taste in your mouth, usually lasting no more than a minute or two. In rare cases, you may experience other side effects. Contact the CT technologist or your doctor if these occur or if you have questions about the use of contrast.
How will I get the test results for a CT of my spine?
When your CT scan is complete, you may return to work or other normal activity immediately. Our board-certified radiologists will read your exam, and the results will be reported to your referring physician within 24 hours.
