1 History of the European-Japanese Cerebrovascular Congress.- PART I INTRACRANIAL ANEURYSMS.- 2 When is Diagnostic Subtraction Angiography Indicated Before Clipping of Unruptured and Ruptured Intracranial Aneurysms? An International Survey of Current Practice.- 3 Current Strategies in the Treatment of Intracranial Large and Giant Aneurysms.- 4 Computational Fluid Dynamics for Cerebral Aneurysms in Clinical Settings.- 5 Microneurosurgical Management of Posterior Inferior Cerebellar Artery Aneurysms: Results of a Consecutive Series.- 6 Posterior Circulation Aneurysms: A Critical Appraisal of a Surgical Series in Endovascular Era.- 7 Microneurosurgery for Paraclinoid Aneurysms in the Context of Flow Diverters Revolution.- PART II CEREBRAL REVASCULARIZATION.- 8 Characteristic Pattern of the Cerebral Hemodynamic Changes in the Acute Stage After Combined Revascularization Surgery for Adult Moyamoya Disease: N-isopropyl-p-[123I] iodoamphetamine Single-Photon Emission Computed Tomography Study.- 9 Outcomes of Balloon Angioplasty and Stenting for Symptomatic Intracranial Atherosclerotic Stenosis At a High Volume Center.- PART III ARTERIOVENOUS MALFORMATIONS AND DURAL ARTERIOVENOUS FISTULAS.- 10 Living with a Brain AVM: A Quality of Life Assessment.- 11 Complications in AVM Surgery.- 12 Surgical Simulation with Three-Dimensional Fusion Images in Patients with Arteriovenous Malformation.- 13 Surgical Treatment of Unruptured Brain AVMs: Short and Long Term Results.- 14 Maximum Nidus Depth as a Risk Factor of Surgical Morbidity in Eloquent Brain Arteriovenous Malformations.- 15 Brain Arteriovenous Malformations Classifications: A Surgical Point of View.- 16 The Pre-Operative Functional Downgrading of Brain AVMs.- 17 Intracranial Dural Arteriovenous Fistulas – The Sinus and Non Sinus Concept.- 18 Complications of Endovascular Treatment of Intracranial Dural Arteriovenous Fistulas.- 19 Spinal Dural AVFs, Classifications and Advanced Imaging.- PART IV MISCELLANEOUS.- 20 Intra-Operative BOLD-fMRI Cerebrovascular Reactivity Assessment.- 21 The Hybrid Neurosurgeon -The Japanese Experience.