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PET CT scan for Brain

PET Scan For Brain

A brain PET Scan is a nuclear imaging technique used by doctors to see how your brain is functioning. This scan captures images of the activity of your brain after a glucose-tagged radioactive tracer has been absorbed into the bloodstream.

Glucose acts as fuel to the brain. Compared to the inactive areas, the active areas of the brain will be utilizing glucose at a higher rate. When detected by a PET scanner, these signals allow doctors to see how the brain is working and help them in finding any abnormalities.

PET Scan accurately tests for shape, size, and function of the brain and tracks down these conditions :

  • Dementia
  • Brain Cancer
  • Epilepsy and Other Seizure Disorders.
  • Mental Disorders
  • Parkinson’s and Other Movement Disorders.
  • Brain Stroke
  • Transient Ischemic Attack (TIA)


PET Scan For Brain

Apart from these, it can also help in preparing for epilepsy surgery. Several PET scans are used to detect the effectiveness of a treatment given for cancer or another illness. It is typically an outpatient procedure, which means you’ll be able to go about your day once the test is complete.


Let us understand the process carried out before the scan and working of Brain PET-CT

  • A small amount of radioactive tracer is injected through a vein
  • The tracer goes through the blood vessels and gets deposited in brain cells
  • It takes approximately 60 minutes for the tracer to get deposited completely
  • Then the patient is made to lie on a thin table, which slides into an enormous passage formed scanner.
  • The PET scanner recognizes signals from the tracer. An attached computer converts these signals into the 3-D picture

This test takes around 30-120 minutes. Remember to stay calm and relax during the scan, so that the machine can capture a proper image of the cerebrum


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