Electromagnetic source imaging is accurate and provides clinically useful information


  • Electromagnetic source imaging (EMSI) has similar accuracy to established imaging methods and provides clinically useful, new information in a third of people with epilepsy undergoing presurgical evaluation.

Why this matters

  • Depending on the ability to identify and resect the epileptogenic zone, up to 85% of operated people with epilepsy become seizure-free; however, the greatest challenge is the presurgical evaluation.