This book is written by an author whose knowledge of the subject is based on vast surgical experience. A reliable assessment of the success or failure of a micro vascular anastomosis or an aneurysm operation has until now been possible only postoperatively by angiography and transcutaneous Doppler sonography. Of particular impor tance are the stenoses and occlusions which can occur dur ing the operation, but which are frequently not detected un til after surgery. This induced the neurosurgeons in Freiburg, as well as those in several other hospitals, to carry out a rou tine control with...