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About CTA’s

Computed Tomography Angiography (CTA) excels at viewing the blood vessels, and is a less-invasive alternative to traditional angiograms which require a catheter being place into an artery.

The exam allows us to screen for arterial disease by viewing vascular structures throughout your body, including arteries of the head and neck, as well as those bringing blood to the heart, lungs, kidneys, arms and legs.

Your provider may recommend a CTA if he or she suspects a narrowing or obstruction in your arteries, an aneurysm, a deep vein thrombosis, a pulmonary embolism or another vascular condition.

If you are allergic to I.V. contrast, you will need to be pre-medicated prior to the exam.

If you have kidney problems or diabetes we will run a blood test prior to the scan to make sure you are a healthy enough for the IV contrast.  


If you have questions about an upcoming CTA scan, please call your preferred center directly

Step 1: We will call you prior to your appointment to discuss specific preparation instructions and your past imaging exams. Be sure to tell us if you are nursing or if there is a chance you are pregnant. We’ll give you a general expectation in terms of time you’ll be in our center.

Step 2: On the day of your exam, please arrive 15 minutes early to check-in and bring prior imaging results with you, if instructed. 

Step 3: Our CT technologist will place an I.V. in your arm or hand. Contrast will flow from this I.V., into a vein to help enhance the images of your blood vessels captured by the CT. The technologist will then help you onto and off the scanner table.

Step 4: The technologist will go out of the room to run the scanner from a computer located directly next to the scanner suite, visible through the viewing window. At this time the CT table you are on will move into the scanner and the technologist will take the images. When the contrast is administered, it is normal to feel a warm, flush sensation or temporary metallic taste in your mouth. The actual time you are in the scanner varies based on the exam but for most patients it is around 2-3 breath holds for the actual scan time.

Step 5: After the exam, your images will be electronically sent to one of our radiologists who will review the information and write a report for your provider. This information is shared with your provider within 24-48 hours of your exam. The provider who referred you for the CTA will be the one to follow-up with you about your results.