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CT Angiography, Pelvic and Bilateral Lower-Extremity Vessels — With Intravenous Contrast

Published: August 9, 2026Updated: August 16, 2026

A CT scan that uses intravenous contrast to examine blood vessels in the pelvis and both legs.

Quick summary

["This scan uses CT and injected contrast to evaluate the blood vessels supplying the pelvis and legs."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
83290-7
Short code
CTA PA-Bl+Pel+LE vv-Bl PE+DVT W contr IV
Synonyms
CTA PA-Bl+Pel+LE vv-Bl PE+DVT W contr IV
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?

CT angiography is an imaging test that uses X-ray technology and intravenous contrast to show blood vessels. This examination focuses on vessels in the pelvis and both lower extremities.

Why might I need this test?

It may be ordered to evaluate narrowed or blocked arteries, aneurysms, abnormal bleeding, blood clots, or other problems affecting circulation. It may also help plan surgery or other vascular treatment.

How is the test performed?

An intravenous line is placed, usually in an arm, and contrast dye is injected. You will then lie on a CT table while the scanner takes images of the pelvic and leg blood vessels. The scan is generally painless, although the injection may cause a brief warm or cool sensation.

How do I prepare for the test?

Follow the instructions provided by the imaging facility, including any fasting or medication requirements. Tell the care team about prior contrast reactions, kidney disease, severe allergies, or pregnancy before the examination.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Pelvic/Leg CT Angiogram

Frequently asked questions

Is this the same as a routine CT scan?
It is a specialized CT examination focused on blood vessels. It includes intravenous contrast and may include images taken before and after the contrast is injected.
What do I feel during the scan?
The scan itself is usually painless. The contrast injection may briefly produce a warm, cool, or flushing sensation, and you may be asked to remain still or briefly hold your breath.
How long does the examination take?
The exact duration varies by facility and the extent of the examination. Allow additional time for check-in, placing the intravenous line, and recovery afterward.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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