Is a CT angiogram reliable for detecting my lung cancer?
Patient's Query
Hello doctor,
I am a 52-year-old man with a long history of smoking, and my cardiologist recently ordered a CT angiogram to check my heart arteries after I complained of chest pain and shortness of breath. When the results came back, my doctor mentioned that the scan picked up a suspicious nodule in my lung that was not the reason for the scan at all, and now I have been referred to a pulmonologist. Can a CT angiogram detect lung cancer? How reliable is this type of scan compared to a dedicated lung cancer screening CT when it comes to identifying malignancy?
Kindly help.
Hello,
Welcome to icliniq.com.
I understand why this situation would worry you, especially when the scan was done for the heart, and suddenly something about the lung was mentioned.
A computed tomography angiogram of the heart does capture images of the lungs because the scan passes through the chest. So doctors can notice a lung nodule on it. In many people, these are found incidentally, meaning they were not the reason for the scan and were simply noticed while reviewing the images. Very often, such nodules are due to old infections, small scars, or minor inflammation and may not mean cancer at all.
That said, a computed tomography angiogram is not specifically designed to evaluate lung nodules in detail. A dedicated chest computed tomography or a lung screening computed tomography is better for this purpose because it uses settings that show lung tissue much more clearly. These scans allow doctors to measure the nodule accurately and study its shape and other features that help estimate whether it is harmless or something that needs more attention.
The important point is that many lung nodules, even in people who have smoked, turn out to be benign. What matters most includes:
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The size of the nodule.
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Its appearance on imaging.
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Whether it changes over time.
The pulmonologist you have been referred to will review the scan and usually advise a proper chest computed tomography. or follow-up imaging to look at it more carefully. In many cases, the nodule is simply monitored over time with repeat scans to see if it stays stable. That approach helps avoid unnecessary procedures while still being careful.
I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.
Thank you.
Same symptoms don't mean you have the same problem. Consult a doctor now!
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