Cerebrospinal Fluid (CSF) Angiography Angles (Skull X-ray)
This test measures specific angles on an X-ray of your skull taken after a contrast dye is injected into your cerebrospinal fluid. It helps assess the anatomy and possible blockages or abnormalities in the flow of CSF.
["This test helps doctors evaluate how CSF circulates through your skull and detect potential blockages or structural issues."]
Key facts at a glance
- LOINC
- 60618-6
- Short code
- Go-Gn-A Angle Skull XR
- Synonyms
- Go-Gn-A Angle Skull XR
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr-measured
- 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 Used For?
Doctors may order this test to diagnose conditions like hydrocephalus (excess CSF buildup), arachnoid cysts, or other structural problems in the skull or spinal canal. It can also help plan surgical interventions if needed.
How Is the Test Performed?
You’ll lie on an X-ray table while a contrast dye is carefully injected into your lumbar spine (lower back). An X-ray image of your skull is taken at specific angles to capture the flow of CSF. The procedure is usually quick and painless, though you may feel pressure during the injection.
What Should You Expect Before the Test?
No special preparation is needed, but inform your doctor if you’re pregnant, have allergies to contrast dye, or have a history of kidney issues. You may be asked to fast for a few hours before the procedure if contrast dye is used.
What Happens After the Test?
You’ll be monitored briefly before being allowed to return to your usual activities. Side effects may include mild soreness at the injection site or a temporary headache. Your doctor will review the images to check for any abnormalities.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test helps identify issues that could affect CSF flow, such as blockages, malformations, or abnormal fluid accumulation. Early detection can prevent complications like increased pressure on the brain or nerve damage, guiding treatment decisions like drainage procedures or surgery.
Short name
CSF Angles (Skull X-ray)
Frequently asked questions
Will I Feel Pain During the Test?
How Long Does It Take to Get Results?
Can I Drink or Eat Before the Test?
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