This book describes the pathoanatomical, pathophysiological, and imaging features of vascular malformations and aneurysms of the brain and the modern, minimally invasive endovascular methods and techniques employed in their treatment. All chapters in the second revised edition of this book have been thoroughly updated. Readers will find this clearly organized book is richly illustrated with numerous informative CT, MR and DSA images, including high- end 7-Tesla MR images.