ABSTRACT
This chapter gives an overview of how to adapt diagnostic imaging technologies on to linear accelerators for image-guided frameless stereotactic radiation therapy (SRT) when the primary focus is on target localization and verification inside the treatment room. Basic applications of in-room imaging techniques are discussed along with a description of several commercially available image-guided radiation therapy (IGRT) solutions. The remainder of the chapter is devoted to current trends in frameless SRT treatment techniques with an emphasis on the role of image-guidance.
