Revolution or evolution? Hybrid imaging continues to push boundaries

One of the major advances in imaging in the last decade has been the combination of existing functional imaging techniques such as SPECT (single photon emission computed tomography) or positron emission tomography (PET) with x-ray computed tomography (CT), giving an anatomical framework to the functional image. PET/CT and SPECT/CT have changed the practice of nuclear medicine considerably since their introduction. This article examines how this hybrid technology evolved, its revolutionary impact, and that it is now seen as the first of potentially many multimodality hybrid imaging devices.