Arteries / Veins / CT Angiography

Computerized tomographic angiography, also called CT angiography or CTA, is a test that combines the technology of a conventional CT scan with that of traditional angiography to create detailed images of the blood vessels in the body.

In a CT scan, x rays and computers create images that show cross-sections, or slices, of your body. Angiography involves the injection of contrast dye into a large blood vessel, usually in your leg, to help visualize the blood vessels and the blood flow within them. When the contrast dye is used to visualize your veins, the study is called a venogram, and when it is used to visualize your arteries, it is known as an arteriogram. CT angiography is similar to a CT scan, but the contrast dye is injected into one of your veins shortly before the x ray image is performed. Because the dye is injected into a vein rather than into an artery, as in traditional angiography, CT angiography could be considered less invasive.

What is CT Angiography used for?

Your physician may order CT angiography to help diagnose a narrowing or obstruction of the arteries, an aneurysm, deep vein thrombosis, pulmonary embolism, or another vascular condition.

CT angiography is used to examine blood vessels in key areas of the body, including the:

  • brain
  • abdomen (such as the kidneys and liver)
  • pelvis
  • legs
  • arms
  • lungs
  • heart
  • neck

Exam Preparation

  • No barium
  • AM Appointment - Nothing to eat or drink after midnight
  • PM Appointment - Nothing to eat or drink 4 hours prior to exam
  • If IV iodinated contrast is needed and you have an allergy to the iodinated contrast media, you may need to be pre-medicated. Please consult your physician.

All patients should remember to bring the following with them to their appointment:

- Prescription
- Picture ID (identification)
- Insurance card(s)

CT Scan in NJ
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The information in this site is not intended to diagnose or treat any medical conditions. If you have a medical condition consult your doctor.