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CT angiography of the head and neck

A CT angiography of the head and neck is a ct test of the head and neck vessels. It shows blocked or burst vessels, aneurysms. Typical effective dose 3 to 5 mSv, similar to about 1 to 2 years of natural background radiation (about 3 mSv a year).

सामान्य स्वास्थ्य जानकारी — यह निदान नहीं है। आपात स्थिति में 102 पर कॉल करें। हमेशा योग्य स्वास्थ्यकर्मी से सलाह लें।

What it shows

Blocked or burst vessels, aneurysms.

Why it is done

Acute stroke, sudden severe headache.

Preparation

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.

Radiation & safety

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.

How long it takes

10 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

CT

परिणाम की व्याख्या के लिए डॉक्टर को दिखाएँ — अकेला परीक्षण निदान नहीं करता।

संबंधित स्थितियाँ

entry-health-condition-stroke

यह कहाँ कराएँ

आपके पास देखभाल

निकटतम सुविधाएँ दिखाने हेतु आपका स्थान एक बार उपयोग होता है। कुछ संग्रहीत नहीं होता।

सामान्य प्रश्न

What does a cta brain show?
Blocked or burst vessels, aneurysms.

Why is a cta brain done?
Acute stroke, sudden severe headache.

How do I prepare for a cta brain?
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.

Does a cta brain use radiation?
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.

How long does a cta brain take?
10 minutes

CT angiography of the head and neck क्यों किया जाता है?
Acute stroke, sudden severe headache.

CT angiography of the head and neck के लिए कैसे तैयारी करें?
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.

CT angiography of the head and neck गर्भावस्था में सुरक्षित है?
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.

SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.

स्रोत: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

आपात — कॉल102