^^^^ Those actually aren't the ones I remembered, there was something in between that 'DIY' stuff, and the commercial thing a few years ago. ISTR also commercial, but slightly less bulky. But can't be bothered to search for that now. (Probably something related to https://duckduckgo.com/?q=rebco+mri )
There is also commercial mobile stuff for veterinary use.
Are you sure about that?
Commercial: https://hyperfine.io
'DIY':
https://hackaday.com/2015/05/04/hackaday-prize-entry-a-low-c...
https://www.eevblog.com/forum/projects/building-an-mri-machi...
https://www.ismrm.org/22/program-files/ET-08.htm
https://github.com/mri4all
https://www.researchgate.net/publication/385920900_ezyMRI_Ho...
^^^^ Those actually aren't the ones I remembered, there was something in between that 'DIY' stuff, and the commercial thing a few years ago. ISTR also commercial, but slightly less bulky. But can't be bothered to search for that now. (Probably something related to https://duckduckgo.com/?q=rebco+mri )
There is also commercial mobile stuff for veterinary use.