Mayo Clinic's Epilepsy Center at Mayo Clinic Arizona works with you to review your treat options and choose the care plan that best suits your needs and goals. From diagnostics to evaluation and treatment, Mayo Clinic’s multidisciplinary team includes experts who are advancing the epilepsy field. As a Level 4 Epilepsy Center, the highest designation given by the National Association of Epilepsy Centers, Mayo Clinic uses the latest in diagnostic imaging to pinpoint the exact cause of seizures, including subtraction ictal SPECT coregistered to MRI (SISCOM), electroencephalography, computerized tomography, magnetic resonance imaging, positron emission tomography and other tests to accurately diagnose epilepsy. Mayo Clinic is one of the leading deep brain stimulation implantation sites in the country. Teams at Mayo Clinic diagnose and treat thousands of patients with epilepsy each year and have experience in successfully treating even the most complex cases.