By the way, doctor: PET-CT scans for finding breast cancer
PET-CT scans do two things. Positron emission tomography (PET) uses glucose that has been tagged with radioactive molecules to identify tissue that's metabolically active. Many tumors have high rates of metabolism, so they tend to "light up" on a PET scan. Like a mammogram, computed tomography (CT) uses radiation, but it takes multiple views of a body part and assembles them into a detailed picture that can show the location and size of a cancerous growth.
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