PET-CT Scan in Karnataka
Positron Emission Tomography combined with CT scan uses a radioactive tracer (FDG) injected into the blood to detect metabolically active cancer cells and provi…
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Frequently Asked Questions
How is PET-CT different from a regular CT scan?
A regular CT only shows anatomy and structure, while PET-CT overlays metabolic activity onto that anatomy, helping distinguish active cancer cells from scar tissue or benign changes.
Do I need to fast before a PET-CT scan?
Yes, fasting for about 4-6 hours and avoiding sugary foods or strenuous exercise the day before is usually required for accurate tracer uptake.
Is the radiation exposure from a PET-CT scan a concern?
The combined radiation dose is higher than a plain X-ray but considered acceptable for the diagnostic benefit it provides, and your doctor will only recommend it when clinically necessary.
How soon will I get my PET-CT report?
Reports are typically ready within 24-48 hours and should be reviewed with your oncologist to interpret the findings in the context of your treatment plan.
Can diabetics undergo a PET-CT scan?
Yes, but blood sugar levels need to be well controlled before the scan since high glucose can interfere with tracer uptake and image accuracy; inform the center about your diabetes in advance.