This volume presents pedagogical content to understand theoretical and practical aspects of diagnostic imaging techniques. It provides insights to current practices, and also discusses specific practical features like radiation exposure, radiation sensitivity, signal penetration, tissue interaction, and signal confinement with reference to individual imaging techniques. It also covers relatively less common imaging methods in addition to the established ones. It serves as a reference for researchers and students working in the field of medical, biomedical science, physics, and instrumentation.Key Features Focusses on the clinical applications while ensuring a steady understanding of the underlying science Follows a bottom-up approach to cover the theory, calculations, and modalities to aid students and researchers in biomedical imaging, radiology and instrumentation Covers unique concepts of nanoparticle applications along with ethical issues in medical imaging