>”Well, a couple of years ago there was a Schnauzer who could detect cancer”<
How did they teach the Dog to work the MRI Machine?
That dog was a cheapo MRI himself. The patient would lie on the grass with arms outstretched and the dog would walk about the outside of his body. He would alert at any locations where he detected cancer. He was right nearly all of the time. Beats lying in a tube listening to the MRI go thump, thump, thump.
I think he did CAT scans...