Dr. Guilherme Brasileiro de Aguiar is a Professor in the Department of Surgery at Santa Casa Medicine School, Sao Paulo. He is specialized in Neurosurgery. His research interests are Neurosurgery, Aneurysm, Cerebral Angiography, Trauma, Neuroradiology, Endovascular Surgery, Intracranial Aneurysm, Carotid Arteries, and Interventional Neuroradiology.