Radiology

Positron Emission Tomography/Computed Tomography (PET/CT)

What is PET/CT?

Positron emission tomography (PET) images provide information about tissue and organ function. Computed tomography (CT) images contain information about soft tissue and bones. PET/CT combines a PET scanner and a CT scanner in a single imaging system.

Why has my physician ordered this exam?

Most commonly used in oncology, cardiology or neurology patients, PET/CT exams assist your physician in diagnosing and establishing the presence and extent of disease. The exam results also help your doctor plan the ideal course of treatment for you.

Some specific uses of PET/CT scans are:

  • Diagnosing and staging cancer
  • Helping your physician decide whether surgery is indicated
  • Identifying tumor locations, and finding out whether a tumor is benign or malignant
  • Determining whether a malignancy has spread, and assessing treatment progress
  • Diagnosing the cause of dementia, e.g., Alzheimer's

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