CT Scan of the Sacrum and Coccyx Without Contrast
A CT scan creates detailed images of the lower spine, including the sacrum and coccyx, to evaluate fractures, alignment, and other structural abnormalities.
["This scan uses X-rays to provide detailed images of the sacrum and tailbone without intravenous contrast."]
Key facts at a glance
- LOINC
- 86970-1
- Short code
- CT Sacrum+Coccyx WO contr
- Synonyms
- CT Sacrum+Coccyx WO contr
- 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
- 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?
A CT scan of the sacrum and coccyx uses X-rays and computer processing to create detailed images of the lower spine. The sacrum is the triangular bone between the lower spine and pelvis, and the coccyx is the tailbone.
Why might I need this test?
This test may be recommended after a fall or other injury, or for persistent lower-back or pelvic pain. It can help evaluate fractures, alignment problems, degenerative changes, and abnormalities involving nearby tissues.
How is the test performed?
You will lie on a table while an X-ray machine rotates around the area being examined. The scan is usually brief, and a technologist will guide you and explain the procedure. Images are then reviewed by a radiologist.
How do I prepare for the test?
Usually, no special preparation is needed for a CT scan performed without contrast. Wear comfortable clothing without metal fasteners, remove jewelry and other metal objects if instructed, and tell the imaging staff if you may be pregnant or have recently received contrast material.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal findings may include fractures, misalignment, degenerative changes, or abnormalities in surrounding bone and soft tissues. Results should be interpreted by your clinician in the context of your symptoms, examination, and any other imaging or laboratory tests. The scan does not identify every cause of pain, and additional evaluation may be needed.
Short name
Sacrum and Coccyx CT
Frequently asked questions
Does this CT scan use contrast dye?
Is a CT scan of the sacrum and coccyx painful?
How soon will I receive the results?
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