The 16th Summer Intensive Course of the Korean Society of Interventional Neuroradiology was held at Busan Lotte Hotel on August 24 (Friday), 2018 (Fig. 1). The total number of participants was 461 in the conference which was also open for foreign doctors to join the East Asian Conference of Neurointervention on the next day. There were 373 Koreans and 88 foreigners who attended from 12 different countries (China, Germany, Hong Kong, Indonesia, Japan, Korea, Malaysia, Singapore, Taiwan, Thailand, USA, and Vietnam). The program featured scientific sessions dedicated to advances in neurointervention and difficult case discussions (Fig. 2). Some of the main program was as below.