Science and medicine have long been close partners, and this is particularly true in radiology where the availability of imaging techniques is central to diagnosis. An understanding of the science underlying an imaging process enables the development of new or improved techniques, comprehension of the imaging limitations and even the creation of a research portfolio. This volume is intended as an education resource to help study and pass the necessary exams in physics required for medical specialists. Accounting for changes in examinations and curricula, this new edition includes more than 50 new questions across all topics, and a new chapter on functional and molecular imaging.