4 ms·
The MRI implications of this are huge. Imagine what cheap portable MRIs could do for the world.
by mountainriver 3y ago
The MRI implications of this are huge. Imagine what cheap portable MRIs could do for the world.
- deleted 3y ago[deleted]
- tgv 3y agoI think they would be somewhat cheaper to build and considerably cheaper to operate, but a strong magnetic field is still difficult to deal with in practice. Would it really be an improvement over eg. CT?
- baking 3y agoSorry, but "portable MRIs" makes no sense. Current high-temperature superconductors (HTS) can probably get you from 3 Tesla to 6 Tesla for commercial MRIs which means better resolution. But you still need magnets large enough to enclose a human body and the structural materials (steel) to withstand the magnetic forces. Also you need to keep the machine clear of metal objects or you have to shut down and restart the magnets which contain so much energy that it has to be released slowly and is a long and involved process.
- Kerb_ 3y agoIt's pretty recent, but I see no reason something like this couldn't be iterated on? https://hyperfine.io/swoop/overview https://hyperfine.io/swoop/overview
- baking 3y agoSwoop is 5 gauss which is 0.0005 tesla. Compare that with my last MRI which was 3.0 tesla. It seems be used for some kind of brain imaging, neuroactivity, etc. but it won't be replacing regular MRI machines. HST magnets will get you 6 tesla MRIs in the next decade or two. Edit: "65-millitesla" or 0.065 tesla.
- mikewarot 3y agoI came to mention the same device Even without superconductors, advances in permanent magnets make some innovation practical. Here's an article about a portable MRI that sells for $250,000[1] [1] https://www.science.org/content/article/mri-all-cheap-portable-scanners-aim-revolutionize-medical-imaging https://www.science.org/content/article/mri-all-cheap-portab...
- traverseda 3y agoA lot of options open up when you cam have an array of smaller magnets I think.
- deleted 3y ago[deleted]