I came across this description in a 1997 review of a book about medical imaging in the 20th century:
"The outputs from the new imaging machines are processed by the same kind of software and displayed on the same kind of screens as those used by other disciplines – the uninitiated may need captions to tell tumours, radio galaxies and rainstorms apart. It has never been easier, in abstract terms, to think of ourselves as part of the physical world and we have never been more in the hands of experts when we want to understand what the visual evidence implies."
Tumours, radio galaxies and rainstorms!