He is board certified in neurological surgery by The American Board of Neurological Surgery. He specializes in endovascular neurosurgery offering patients a minimally invasive approach for the treatment of neurovascular diseases. He provides individualized neurosurgical care to patients with cerebral aneurysms, vascular malformations, strokes and brain hemorrhages, carotid and vertebral stenoses, tumors, and spine and peripheral nerve diseases. Other clinical areas of special interest to Dr. Thorell are normal pressure hydrocephalus and Chiari malformation. Dr. Thorell has been instrumental in forming an inter-disciplinary stroke team, the Nebraska Stroke Center, right here at the University of Nebraska Medical Center/Nebraska Medical Center.