​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Day of Your Operation

Arrive 3 hours before your scheduled procedure time​:

Medical Imaging Reception
​​​​​​​​​​Toronto Western Hospital
3rd Floor, East Wing, Room 448 - Go up the East elevators to the 3rd floor. ​
Maps & location iconTWH Maps & Directions

All hospital entrances are open by 6 am. However, Bathurst St. and Leonard Ave. are easiest to access.

If there is no one at the reception desk, please have a seat and the nurse will come get you. DO NOT wait outside the Gamma Knife Clinic because no one is there at that time.​

​​​​​​​​What to bring to the hospital on the day of your operation
  • Your health card (OHIP) card, or another piece of government issued photo ID, such as a passport or driver's license.
  • Any other insurance cards. You will need the policy number of your extended health insurance, if you have any.
  • Your spouse/partner, a trusted friend or family member (to offer you support and be a second set of ears).
  • All of your current medications in their original bottles or a list of all of your current medications.
  • Name/address of your pharmacy.
  • Name/address of your family doctor.
  • A list of any questions you may have.
  • Activities to pass the time. You can bring books, crafts, DVDs or other items.
  • ​Music to listen to during your procedure. You can bring an iPod or CD player.
​​​​​​​​What will happen on the morning of my operation?
  • We will take your temperature, pulse, check your breathing, blood pressure, and do any other tests at this time.
  • You will change into a hospital gown. Any belongings you do not need should be sent home with your family members.
  • Your surgical team will interview you when you arrive in the surgical patient waiting area.
  • ​Once in the operating room, we will put on your head frame​.
​​​​ ​ ​

We will then take images of your head and brain. It will show the exact size, shape and position of the target in your brain. Your doctors may use Magnetic Resonance Imaging (MRI), Computerized Tomography (CT) or an Angiogram to do this.​

If you are getting a CT or MRI

For these procedures, a dye may be injected into your veins. This will be done during the scan. It will help the doctors see your tumour(s) more clearly.

If you are getting an MRI, tell your doctor if you have:

  • any implanted devices in your body (for example: a pacemaker.)
  • ever worked with metal products
  • any metal objects in your body

The staff will fill out a questionnaire with you before your MRI.

If you are having angiography

This is the test used if you have an Arteriovenous Malformation (AVM). For this scan, a dye will be injected into your veins. If you are allergic to the dye you must tell the doctor in the clinic before you are booked for treatment. You will be given a prescription for some special allergy medicine. A transparent box will be placed on your head over the frame during the scan. When the scan is done, the radiation therapist will take the box off. When your scans are done, you will go back to the Medical Imaging Day Unit. You will need to lay flat for 4 hours after the angiogram.​​

What to expect during your procedure

The radiation therapists will help you lie down on your back on the treatment bed. They will also help attach your frame to the treatment couch.

The radiation therapists will leave the treatment room during your treatment but they can see you on the video cameras. They can also talk to you if they need to. Before your treatment starts, the couch will move so that your head will be inside the treatment unit.

During treatment, you will not feel the radiation. There is also no noise from the treatment unit. The treatment can take several hours to finish.

You may move in and out of the treatment unit several times during your treatment. The radiation therapists may also have to adjust the position of your head frame.

You will need to stay still during your treatment. During this time you can listen to music in the room or you can bring your own iPod or CD player.​​