Descriptive information regarding the technique of intravascular ultrasound has been encompassed in this comprehensive book. Intravascular ultrasound (IVUS) is an imaging technique which uses a specially designed catheter with the miniaturized ultrasound probe for the evaluation of vascular anatomy with a detailed visualization of arterial layers. This technology has evolved as an essential tool for research and clinical practices in cardiovascular medicine over the last two decades. This has led to opening of new pathways for gathering diagnostic information about the course of atherosclerosis in vivo and to analyze the effects of various interventions on plaque and arterial wall. This book provides a comprehensive account on this fast emerging technique, providing in-depth information on aspects varying from basic fundamentals and instrumentation to research and clinical applications with future perspectives.