Dr. Lotfi Hacein-Bey from Department of Radiology, UC Davis Medical Center, Sacramento, CA visited our hospital today. He is one of the best friends of Dr. Naoya Kuwxyama for these 20 years since he was studying in New York. Dr. Lotfi Hacein-Bey gave us a lecture on endovascular therapy for intracranial and spinal dural arteriovenous fistula. His lecture was quite sincere and exciting! All of us deeply appreciate his visit to our hospital.