This atlas is a superb guide to the use of PET-CT for the evaluation of treatment response in oncology patients based on its ability to assess tumor metabolic status. The first part of the book explains the role of PET-CT in response evaluation in different treatment settings. For comparison, overviews of the value and limitations of CT alone, PET alone, and anatomical and functional MRI are included. Guidance is also provided on the reporting of PET-CT scans in post-therapy scenarios. The second part of the book describes and illustrates the use of PET-CT with FDG and other tracers to assess the treatment response of malignancies at different anatomic sites. Featuring a wealth of images, informative case-based discussion, and evidence-based teaching points, these disease-specific chapters clearly demonstrate the key role that PET-CT can play in distinguishing early responders from patients who are non-responders or are resistant to treatment. Prompt and accurate evaluation of treatment response is vital as we enter the era of individualized medicine, and this atlas will persuade readers of the considerable advantages of PET-CT over conventional radiological and clinical methods.