This text will help the reader gain a basic understanding of the complexity of molecular imaging. The book will be an easy-to-read primer for practicing radiologists, nuclear medicine practitioners, and residents in radiology and nuclear medicine who want to learn more about the emerging field of molecular imaging (using PET, SPECT, MRI, and CT). Dr. Gambhir will present to the reader a solid overview on the instrumentation, molecular biology, assays, and the clinical applications currently existing. Each of the chapters will be heavily illustrated with clear imaging examples of the principles discussed throughout. In-depth coverage on frequently asked questions and the future of molecular imaging will be thoroughly discussed as well; plus, every concept will be defined in a detailed glossary. With its tremendous diagnostic and staging capabilities, and potential benefits to patients, molecular imaging is clearly the way of the future in radiology.