A market leader and a highly respected reference, this text explains how diagnostic ultrasound works and helps readers scan safely, properly handle artifacts, evaluate instrument performance, and prepare for registry and board examinations. It covers all essential aspects of ultrasound physics, including Doppler, artifacts, safety, quality assurance, and the newest technologies. Information is presented dynamically, with a multitude of boxes and tables and over 1,300 illustrations. Focusing on the most basic and essential equations, this book simplifies complicated mathematical concepts.