What is a low-dose CT scan?
A low-dose CT (computed tomography) scan is a quick, non-invasive imaging test used to screen for lung cancer before symptoms appear. It uses a small amount of radiation to create detailed images of the lungs, allowing providers to detect small nodules or abnormalities early – when treatment is often most effective.
Who needs a low-dose CT scan?
Lung cancer screening is recommended for individuals who are at higher risk, even if they feel healthy and have no symptoms. You may be a candidate if you:
- Are between ages 50-80
- Have a history of smoking (20 pack-years or more)
- Currently smoke or have quit within the past 15 years
What should I expect during a low-dose CT scan?
A low-dose CT scan is a quick and straightforward process that typically takes just a few minutes. During the exam, you will lie on a table that gently moves through the scanner while detailed images of your lungs are captured. You may be asked to hold your breath briefly to ensure clear imaging. The scan does not require needles or injections, and once it’s complete, you can return to your normal activities right away.
What should I expect after a low-dose CT scan?
After your scan, a radiologist will review the images and send a report to your provider. In many cases, results are normal and no immediate follow-up is needed beyond routine and annual screening. If anything unusual is found, it does not necessarily mean cancer. Your provider may recommend additional imaging or monitoring over time to take a closer look.