This updated book is a practical guide to intrapartum ultrasonography to help practitioners improve labor and delivery, and to limit, where possible, complications.Presenting the authors' experiences, the book summarizes the state of the art in normal and abnormal labor. It clearly documents the use of intrapartum ultrasonography to evaluate the first and second stages of labor and diagnose the occiput posterior and transverse positions. Each situation is analyzed with the help of numerous informative images and invaluable tips and tricks showing how fetal head engagement and progression can be documented objectively. The importance of ultrasound in obstetrics risk management is also addressed.Explaining how intrapartum ultrasonography can be used to assess whether a safe natural delivery is likely or whether operative procedures are required, the book is a valuable resource for all professionals - physicians and midwifes alike - caring for women in labor.