Blocked or burst vessels, aneurysms.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Blocked or burst vessels, aneurysms. What it shows: Blocked or burst vessels, aneurysms. generated by SI from cited sources · general information, not a diagnosis · consult a health professional
Blocked or burst vessels, aneurysms.
Acute stroke, sudden severe headache.
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Typical effective dose 3 to 5 mSv, similar to about 1 to 2 years of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
10 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
Why is CT angiography of the head and neck done?
Acute stroke, sudden severe headache.
How do I prepare for CT angiography of the head and neck?
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Is CT angiography of the head and neck safe in pregnancy?
Typical effective dose 3 to 5 mSv, similar to about 1 to 2 years of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
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