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Imaging & Radiology


Positron Emission Tomography (PET) Imaging

21 PET CTPositron emission tomography, also called PET imaging or a PET scan, is a diagnostic imaging procedure that measures important body functions, such as blood flow, oxygen use, and sugar (glucose) metabolism, to help doctors evaluate how well organs and tissues are functioning.

At Rochester Regional Health, our state-of-the-art PET/CT scanner combines PET imaging with Computed Tomography (CT) so both imaging procedures can be performed at the same time, leading to more precise information and accurate diagnoses. The highly sensitive PET scan picks up metabolic signals while the CT scan provides a detailed picture of the internal anatomy that reveals the size and shape of abnormalities.

PET/CT scans are often used to:

  • help diagnose cancer
  • detect the spread of cancer to other parts of the body
  • measure the effectiveness of cancer treatment
  • diagnose diseases of the brain, such as Alzheimer's disease, Parkinson's disease, Huntington's disease, epilepsy, or stroke
  • diagnose diseases of the heart, such as coronary artery disease

Frequently Asked Questions