The European Society of Neuroradiology holds each year a scientific congress at a place and date designated by the Executive Committee. The business meeting (General Assembly) of the Society is held in conjunction with this annual scientific congress. Since its creation in 1969, the ESNR has organised 35 scientific congresses. In recognition of the importance of the Symposium Neuroradiologicum, which is held every four years, no scientific congress of the ESNR is organized in the year of the Symposium.