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Catheter angiography

A Catheter angiography is a interventional test of the blood vessels. It shows detailed vessel pictures through a catheter; treatment can be done at the same time. Typical effective dose 5 to 15 mSv, similar to about 2 to 5 years of natural background radiation (about 3 mSv a year).

General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.

SmartAnswer by DigiNepal SI

A Catheter angiography is a interventional test of the blood vessels. It shows detailed vessel pictures through a catheter; treatment can be done at the same time. Typical effective dose 5 to 15 mSv, similar to about 2 to 5 years of natural background radiation (about 3 mSv a year). What it shows: Detailed vessel pictures through a catheter; treatment can be done at the same time. generated by SI from cited sources · general information, not a diagnosis · consult a health professional

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

What it shows

Detailed vessel pictures through a catheter; treatment can be done at the same time.

Why it is done

Blocked or bleeding vessels.

Preparation

Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.

Radiation & safety

Typical effective dose 5 to 15 mSv, similar to about 2 to 5 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

30 to 90 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Interventional

Consult a doctor to interpret results — a single test does not make a diagnosis.

Related conditions

entry-health-condition-stroke-entry-health-condition-acs

Where to get this near you

Care near you

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Common questions

What does a angiography show?
Detailed vessel pictures through a catheter; treatment can be done at the same time.

Why is a angiography done?
Blocked or bleeding vessels.

How do I prepare for a angiography?
Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.

Does a angiography use radiation?
Typical effective dose 5 to 15 mSv, similar to about 2 to 5 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 angiography take?
30 to 90 minutes

Why is Catheter angiography done?
Blocked or bleeding vessels.

How do I prepare for Catheter angiography?
Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.

Is Catheter angiography safe in pregnancy?
Typical effective dose 5 to 15 mSv, similar to about 2 to 5 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.

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

Emergency — call102