Computed Tomography (CT) Scan of the Neck with Intravenous Contrast

What is this test?

A CT scan of the neck is an imaging test that combines X-rays with computer technology to create detailed pictures of the tissues and structures in the neck. Intravenous contrast is a special dye given through a vein to improve the visibility of blood vessels and certain tissues.

Why might I need this test?

Your clinician may order this test to investigate a neck lump, enlarged lymph nodes, pain, swelling, or difficulty swallowing. It may also be used to assess infection, inflammation, or the extent of a tumor and to guide procedures or treatment.

How is the test performed?

You will lie on a table that moves through the CT scanner while X-ray images are taken. If contrast is required, it is usually injected into a vein in your arm; the scan is generally quick and does not feel painful, although the injection may cause a brief warm or cool sensation.

How do I prepare for the test?

Follow your clinician's instructions about eating, drinking, and medications. Tell the imaging team if you have had a serious reaction to contrast, have kidney disease, are pregnant or may be pregnant, or have other relevant medical conditions, because these factors may affect the scan or its safety.