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High-resolution CT of the chest (HRCT)

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).

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

What it shows

Fine lung detail: interstitial lung disease, bronchiectasis, COVID-19 changes.

Why it is done

Persistent breathlessness, abnormal X-ray.

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 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 it takes

5 to 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-copd

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 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

High-resolution CT of the chest (HRCT) क्यों किया जाता है?
Persistent breathlessness, abnormal X-ray.

High-resolution CT of the chest (HRCT) 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.

High-resolution CT of the chest (HRCT) गर्भावस्था में सुरक्षित है?
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.

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

आपात — कॉल102