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PET SCAN - POSITRON EMISSION TOMOGRAPHY
WHAT IS A PET SCAN USED TO DIAGNOSE?
A PET scan is used to diagnose and stage patients with cancer, as well as patients with certain brain and heart disorders.
In cancer, a PET scan can:
- Distinguish benign from malignant tumours
- Stage cancer by showing metastases anywhere in the body
- Prove whether or not treatment therapies are working
In the heart, a PET scan can:
- Quantify the extent of heart disease
- Determine, after a heart attack, if the heart muscle would benefit from surgery
In the brain, a PET scan can:
- Positively diagnose Alzheimer's disease for early intervention
- Locate tumours in the brain and distinguish tumour from scar tissue
- Locate the focus of seizures for some patients with epilepsy
- More accurately assess tumour and other sites in the brain for delicate surgery
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