This book explores the basic scientific principles, theory, and techniques associated with peripheral vascular ultrasound and blood flow. It clearly explains how to interpret color images and Doppler spectra, as well as how to optimize scanner controls for the most effective results. Chapters include descriptions of vascular disorders, carotid duplex ultrasound, lower and upper limb arterial and venous assessment, ultrasound assessment of aneurysms, graft surveillance and pre-operative vein marking, and more. Clinical chapters also contain current criteria for grading disease. The latest technological advances, such as harmonic imaging and compound imaging, are integrated with an emphasis on safety.