Coronary Physiology in the Cardiac Cath Lab provides the foundational knowledge required to understand the concepts behind a variety of coronary physiologic assessments performed and required to apply them effectively when evaluating cardiac patients. Written to bring a practical and evidence-based approach, this book is a valuable resource for interventional and general cardiologists, cardiology researchers, physicians, cardiac catheterization laboratory staff, and anyone interested in understanding the theory and current practice surrounding assessing coronary physiology in the cardiac cath lab. Over the past decade, there has been an explosion of data validating the importance of assessing coronary physiology at the time of coronary angiography. This has led to the development of numerous new techniques and metrics for performing these assessments and also resulted in the inclusion of these indices into practice guidelines.