HRCT (High-Resolution CT Chest) Scans Sydney
A High-Resolution CT (HRCT) Chest scan uses very thin CT slices to create highly detailed images of the lungs. It is the preferred test for diagnosing and monitoring interstitial lung diseases and subtle abnormalities not seen on standard CT scans. At Advicon Imaging, HRCT Chest scans are bulk-billed for Medicare-eligible patients.
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Description of HRCT (High-Resolution CT Chest)
A High-Resolution CT (HRCT) Chest is an advanced form of CT scanning designed to show fine details of the lungs, airways, and surrounding tissues. Unlike a conventional CT chest scan, which uses thicker slices, HRCT uses very thin slices—typically between 0.625 mm and 1.25 mm—to capture precise, high‑detail images. This allows doctors to identify early or subtle lung changes that may not be visible on standard CT imaging.
HRCT is commonly requested to diagnose conditions such as interstitial lung disease, pulmonary fibrosis, sarcoidosis, asbestosis, emphysema, bronchiolitis, and other disorders affecting the lung tissue or small airways. It is also used to monitor disease progression or response to treatment. Because it captures fine anatomical detail, HRCT is especially helpful in detecting patterns such as ground‑glass opacities, nodules, septal thickening, and reticular changes.
During the scan, you will be asked to lie still on the CT table while images are taken. In some cases, images may be obtained during inhalation, exhalation, or in different positions (lying on your back or stomach) to better evaluate certain lung conditions. HRCT does not typically require contrast injection, making it a quick and comfortable test for most patients.
At Advicon Imaging, our HRCT studies are performed using modern CT technology designed to minimise radiation exposure while maintaining exceptional image quality. All Medicare‑eligible HRCT scans are fully bulk-billed.
Frequently Asked Questions
What is an HRCT Chest scan?
An HRCT is a high‑detail CT scan that uses thin slices to create extremely clear images of the lungs and small airways.
Why has my doctor requested this scan?
HRCT is used to diagnose or monitor lung diseases such as pulmonary fibrosis, sarcoidosis, asbestosis, emphysema, bronchiolitis, or unexplained breathing problems.
Is any preparation needed?
HRCT usually requires no special preparation.
- Wear comfortable, metal‑free clothing.
- Notify us if you may be pregnant.
- Most HRCT scans are done without contrast, so fasting is generally not required.
What happens during the scan?
You will lie on a CT table while detailed images of your lungs are taken. You may be asked to hold your breath briefly or change positions during the scan.
Is the scan painful?
No. HRCT is completely painless and non-invasive.
Does it use radiation?
Yes, but the radiation dose is kept low using modern CT techniques tailored specifically for lung imaging.
How long does the scan take?
The scan itself takes only a few minutes. The entire appointment typically lasts 10–15 minutes.
Will I need contrast?
Most HRCT scans do not use contrast. If your doctor specifically requires a contrast-enhanced CT, we will advise you beforehand.
Can I drive home afterward?
Yes. You can return to normal activities immediately.
When will my doctor receive the results?
Reports are usually sent to your doctor within 24–48 hours, or sooner if urgent.
Is this scan bulk-billed?
Yes. HRCT Chest scans are bulk-billed for Medicare‑eligible patients at Advicon Imaging.