Transcranial Doppler ultrasonography (TCD) is of growing importance in neurology, not only in the evaluation of cerebrovascular diseases but also in monitoring the intensive care or intraoperative situation and in the field of neuropsychology. This book aims to address all aspects of TCD, including the new methods of microemboli signal detection and cognitive monitoring. It also considers recent technical developments such as echo-contrast agents and three-dimensional ultrasonography. A special section for the paediatric uses of TCD is new for this type of book and underlines the importance of cerebrovascular diseases even in infancy and adolescence. This is the second edition; the first was published in 1993, and since that time major advances have been made in the research clinical and technical aspects of TCD. The book has been widely rewritten, with emphasis on new developments. The `aim has been to produce a state of the art volume that covers both the basic aspects of transcranial ultrasound testing in routine clinical practice and the cutting edge of research' (p. xiii). Interestingly, nearly all contributors are from the United States or Germany, which reflects the broad and highly accepted assessment of TCD in clinical neurology and research in both countries. …