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PET/CT

Positron Emission Tomography (PET) is a revolutionary method used to detect the earliest signs of cancer. This technique is based on the intravenous injection of glucose analog (FDG) attached to an isotope and allows physicians to measure the body’s abnormal molecular cell activity which detects cancer, brain disorders and heart disease.

What makes Medical Imaging unique when it comes to PET/CT?

  • Combined PET/CT is more accurate than PET and CT alone.
  • The PET/CT system provides exceptional image quality and accuracy of diagnostic information.
  • A CT scan provides anatomical detail (size and location of tumors, masses etc.)
  • A PET scan provides metabolic detail (cellular activity of tumors, masses etc.)

Some of the more advanced PET/CT techniques that we offer include:

  • PET/CT for cancer and oncological imaging
    This is an accurate tool to detect the earliest signs of cancer or as follow-up imaging for patients who have been treated for cancer.
  • Brain PET Scan
    This provides diagnostic information and can differentiate Alzheimer’s disease (and other brain degenerative diseases) from non-degenerative diseases such as stroke, seizures and head trauma.
  • Cardiac PET/CT with Rubidium
    This technique checks for coronary artery disease and the resulting ischemia to the heart muscle. It doesn’t have certain of the limitations of the traditional cardiac stress isotope studies. Images determine whether sufficient blood is getting through to the heart through the coronary arteries.

Technology:

GE Discovery 16 PET/CT

PET/CT Studies

  • Brain
  • Eye to thigh
  • Legs
  • Rubidium

What is PET/CT?

A PET scan begins with an injection of a glucose based radiopharmaceutical (FDG), which travels through the body and collects in the organs and tissues targeted for the exam.

Metabolically active organs or tumors consume sugar at higher rates, and as the tagged sugar starts to decay, it emits positrons. These positrons then collide with electrons, giving off gamma rays. A computer then converts the gamma rays into images, which indicate metabolic ‘hot spots’ indicating rapidly growing tumors (cancerous cells generally consume more sugar/energy than healthy or normal cells).

What to expect during your PET/CT?

  • You will sit in a quiet room for approximately 45 minutes while our technologist injects a glucose analog (FDG) attached to an isotope.
  • You will then be guided to lie on a flat table/bed that moves slowly through the PET scanner.
  • The scanner has cameras that detect the gamma rays that are emitted and then turns them into electrical signals which are processed by a computer to generate the medical images.
  • The digital images that are produced are assembled by a computer into 3D images of your body.

Preparing for your PET/CT scan

  • Drink lots of water prior to your exam.
  • Wear comfortable clothing without any metallic objects such as buttons or zippers.
  • You should not eat after midnight prior to your exam.
  • Your sugar intake should be low for 24 hours prior to the study.
  • If you are diabetic, please contact us for special instructions.