Imaging is a critical component in the delivery of radiotherapy to patients with malignancy, and this book teaches the principles and practice of imaging specific to radiotherapy. Introductory chapters outline the basic principles of the available imaging modalities including x-rays, CT, ultrasound, MRI, nuclear medicine, and PET. Site specific chapters then cover the main tumour sites, reviewing optimal imaging techniques for diagnosis, staging, radiotherapy planning, and follow-up for each site. The important areas of radiation protection, exposure justification, and risks are also covered, exploring issues such as balancing radiation exposure with long-term risks of radiation effects, such as second cancer induction. This second edition has been fully revised and updated to reflect current techniques, and includes two brand new chapters on imaging for radiotherapy treatment verification, and the role of specialist MRI techniques and functional imaging for radiotherapy planning. With insights from experts in each field and over 200 illustrations, this comprehensive and easy-to-read guide will be an invaluable resource for radiation oncologists, clinical oncologists, and radiotherapists, both qualified and in training.