"Version: 20230201"--Title page verso.Includes bibliographical references.part I. Introduction. 1. Overview of image-guided radiation therapy / Irina Vergalasova, Ning J. Yue and Meral Reyhan -- 2. History and future of image-guided radiation therapy in abdominal cancer / Gregory P. Penoncello, Daniel G. Robertson, Ronik S. Bhangoo, Yanle Hu, Wei Liu, Yunze Yang, William G. Rule and Carlos E. V…