Functional imaging using PET and radiotherapy planning

摘要

Functional imaging with PET allows new insights into the extent of a tumour. This information has been rapidly included into treatment protocols. There are some complications in the process, not least of which is how to define the edge of the tumour. This review outlines current uses of PET in radiotherapy treatment planning. Concepts of radiotherapy volumes are outlined and common applications explored. PET now has an established role in radiotherapy planning. It is hoped that in those areas where it has not shown benefit, the development of new PET tracers will allow further improvement. There is still much work to be done, especially in the area of standardisation of techniques.