The best alternative is the original one: NMR: Nuclear Magnetic Resonance.

They renamed the technology "Magnetic Resonance Imaging" to spare the sensitivities of science-illiterates with Nuke-phobia. Much the same population as those that dread being infected by the vibes of microwaves.

Brrrrh!

You would think that anything that makes you go green and glow in the dark would be welcome in these days of austerity in the interests of preventing AGW...

Jon