A High-resolution CT of the chest (HRCT) is a ct test of the chest. It shows fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes. Typical effective dose 4 to 7 mSv, similar to about 1.5 to 2 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.
A High-resolution CT of the chest (HRCT) is a ct test of the chest. It shows fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes. Typical effective dose 4 to 7 mSv, similar to about 1.5 to 2 years of natural background radiation (about 3 mSv a year). What it shows: Fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes. generated by SI from cited sources · general information, not a diagnosis · consult a health professional
Fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes.
Persistent breathlessness, abnormal X-ray.
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 4 to 7 mSv, similar to about 1.5 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.
5 to 10 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
CT
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.
What does a hrct chest show?
Fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes.
Why is a hrct chest done?
Persistent breathlessness, abnormal X-ray.
How do I prepare for a hrct chest?
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 hrct chest use radiation?
Typical effective dose 4 to 7 mSv, similar to about 1.5 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 hrct chest take?
5 to 10 minutes
Why is High-resolution CT of the chest (HRCT) done?
Persistent breathlessness, abnormal X-ray.
How do I prepare for High-resolution CT of the chest (HRCT)?
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 High-resolution CT of the chest (HRCT) safe in pregnancy?
Typical effective dose 4 to 7 mSv, similar to about 1.5 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.