CT Angiography of the Chest with Intravenous Contrast and 3D Reconstruction — Deprecated
A chest CT angiogram uses IV contrast and CT images to examine the blood vessels and structures of the chest, with 3D reconstruction.
["This imaging test evaluates chest blood vessels and can help identify blockages, narrowing, aneurysms, or other abnormalities."]
Key facts at a glance
- LOINC
- 58745-1
- Short code
- Deprecated Chest>CA CT.Angio +3DR W cont
- Synonyms
- Deprecated Chest>CA CT.Angio +3DR W cont
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ct-angio
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
Chest CT angiography is an imaging test that uses intravenous contrast and CT scanning to evaluate the blood vessels and other structures in the chest. A 3D reconstruction may be created to help review complex anatomy. This order is marked as deprecated and may have been replaced by a newer imaging order.
Why might I need this test?
Your clinician may order this test to investigate suspected pulmonary embolism, blood-vessel narrowing or blockage, an aortic aneurysm, or abnormalities involving the lungs, heart, or surrounding vessels. It may also be used in urgent evaluations of unexplained symptoms such as sudden shortness of breath or chest pain.
How is the test performed?
You lie on a CT scanner table while an IV line is placed and contrast is injected into a vein. The scanner takes many X-ray images, which are then reviewed by a radiologist. The 3D reconstruction is created from the acquired images, and a healthcare professional explains the results.
How do I prepare for the test?
Follow the instructions provided by the imaging center. You may need to avoid food and drinks for a short period, and blood tests may be used to check kidney function before contrast is given. Tell the care team about any contrast allergy, kidney disease, pregnancy, or recent use of contrast.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may include a blood clot, such as a pulmonary embolism, or narrowing, blockage, enlargement, or irregularity of a chest blood vessel. The scan may also reveal lung, heart, or lymph-node abnormalities. Results should be interpreted by a radiologist in the context of your symptoms and other tests.
Short name
Chest CT Angiography
Frequently asked questions
Does chest CT angiography use radiation and contrast?
Can I have this test if I am allergic to iodine contrast?
Why does the order say “deprecated”?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy