Magnetic Resonance Imaging (MRI)
The MRI is a large imaging device that sits in its own room. It uses a non-harmful magnetic field and radio waves to get clear, sharp pictures of what is going on inside your brain. An MRI is used to detect bleeding in the brain, tumours or stroke. It is also an excellent device for detecting smaller strokes or strokes in the back of the brain, which other imaging devices can miss. MRI images show even more detail than CT scans, and can be viewed in 3-D on a computer screen.
What is involved
You will lie on a flat bed then you will be moved inside an opening into the MRI device. It takes about 30 minutes to get all the images needed. Some people find it difficult to stay still for that long, but the test itself is painless.
Magnetic Resonance Angiography (MRA)
This is a newer imaging technique used to detect any blocking or narrowing of the arteries in the neck and brain. Like an MRI, an MRA uses a strong magnetic field and radio waves to take pictures of the blood vessels. It produces 3-D images of these specific veins and arteries and can help doctors get very detailed information about your stroke.
If you require more detailed information, check with the facility where you are having your exam.
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