Image guided radiotherapy moving towards real time adaptive radiotherapy; global positioning system for radiotherapy?

Image guided radiotherapy (IGRT) has been defined as ‘any imaging at the pre-treatment and treatment delivery stage that leads to an action that can improve or verify the accuracy of radiotherapy’ [[1]National Cancer Action Team National Radiotherapy Implementation Group. ‘ Image Guided Radiotherapy - Guidance for Implementation and Use’; 2012.Google Scholar]. During the last 30 years, imaging in radiotherapy has reflected the advances of...