On Target 2: Updated Guidance for Image-guided Radiotherapy

On target: ensuring geometric accuracy in radiotherapy was published in 2008 and aimed to provide guidelines for image-guided radiotherapy (IGRT) [[1]The Royal College of RadiologistsSociety and College of RadiographersInstitute of Physics and Engineering in Medicine. On target: ensuring geometric accuracy in radiotherapy. The Royal College of Radiologists, London2008Google Scholar]. At the time of publication, electronic portal imaging (EPI)...