The Wada test, also known as the Intracarotid Amobarbital Procedure (IAP), was named after Dr. Juhn Wada. He developed the combination of neuro-imaging and neuropsychological testing methods to examine independent functions of the brain such as memory and language. It is useful in determining which hemisphere is “dominant” for speech and if memory is functional…

← Back to Diagnosis Understanding diagnostic tests Magnetic Resonance Imaging (MRI) An MRI produces detailed pictures of the brain’s structure. It can help the healthcare team investigate possible causes of seizures and plan treatment. Important Safety Information What to Expect About this information This webpage is subject to continuous review by Epilepsy Ontario to help…

Positron Emission Tomography is a scanning technique which detects chemical and physiological changes related to metabolism. This procedure produces three-dimensional images of blood flow, chemical reactions and muscular activity in the body as they occur. It measures the intensity of the use (metabolization) of glucose, oxygen or other substances in the brain. More active brain…

← Back to Diagnosis Understanding diagnostic tests CT / CAT Scan A computed tomography scan uses X-rays and a computer to create detailed images. A head CT can help the healthcare team investigate structural problems, particularly when a rapid assessment is needed. Before Your Scan Questions to Ask About this information This webpage is subject…