St Vincent's Clinic Medical Imaging & Nuclear Medicine

Brain Scan

A Brain Scan evaluates perfusion to the brain.

What will happen when you have your Brain Scan

When you arrive in the Nuclear Medicine department a small cannula will be inserted into a vein in your arm. You will then be required to lie down on a bed for approximately 45 minutes with the lights switched off. During this period you can fall asleep if you wish as we will be trying to get your brain into a relaxed state. After 45 minutes you will be given an injection of a radioactive tracer through the cannula then required to rest for approximately 15 minutes more. After your resting phase the cannula will be removed and then images of your brain will be obtained. These images take approximately 20 minutes. You should not feel any different from the injection and you can eat and drink as normal before and after the test.

What you need to do and how to prepare for the test

You will not be required to undress for the scan. The scan is performed with the Gamma Camera close to your body but you do not go through a “tunnel”

  • You will need a referral from your doctor
  • You will need an appointment for this test
  • You can eat and drink normally before the test
  • You can take your medications as normal
  • You will be in the department for approximately 2 hours
  • Please bring any previous relevant X-rays or scans to your appointment
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