Yes you read right, 100 Million X more volume resolution. Sweet jesus.
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IBM announces new MRI
#1
Posted 14 January 2009 - 08:19 PM
Yes you read right, 100 Million X more volume resolution. Sweet jesus.
#2
Posted 14 January 2009 - 08:24 PM
#3
Posted 14 January 2009 - 08:26 PM
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#4
Posted 14 January 2009 - 08:51 PM
"MRI is well known as a powerful tool for medical imaging, but its capability for microscopy has always been very limited," said Dan Rugar, manager of nanoscale studies at IBM.
Unlike conventional MRI machines, which use imaging and gradient coils to scan the body, IBM's device detects minute magnetic forces while the sample rests on a microscopic cantilever -- a small sliver of silicon that's shaped like a diving board.
Magnetic spins in the sample's hydrogen atoms interact with a nanoscopic magnetic tip, causing vibrations in the cantilever that are tracked by laser interferometry. "Our hope is that nano MRI will eventually allow us to directly image the internal structure of individual protein molecules and molecular complexes," said Rugar.
In the lab, IBM applied the technique to a sample of tobacco mosaic virus and achieved resolution down to four nanometers, the company said. IBM published the results Tuesday in the Proceedings of the National Academy of Sciences.
link
#5
Posted 15 January 2009 - 05:32 AM
#6
Posted 18 January 2009 - 11:31 PM
http://techfragments...Resolution.html
http://news.bbc.co.u...ech/7826901.stm
http://www.informati...cleID=212900162
Looks like Ray kurzweil knows what he is talking about.
#7
Posted 19 January 2009 - 04:59 AM
100 Million times greater? That is so incredible it's hard to believe!
#8
Posted 19 January 2009 - 06:37 AM
Am I wrong about this?
Thanks! :-)
#9
Posted 19 January 2009 - 07:01 AM
Actually? this rate of MRI resolution growing looks to me much faster than the rate that Ray kurzweil was talking about in his book....
Am I wrong about this?
Thanks! :-)
This doesn't have much to do with the exponential rate at which information-based technologies advance (many of them doubling every year or two). This is a specific advance, don't expect IBM to make a resolution increase on the MRI of 100 million next year . This is, though, a consequence of the exponential rate at which information based technologies are advancing.
Could this super duper improved MRI version be used to scan the brain in a level of detail never seen before? If we managed to do that, my god we would be so much closer to being able to reverse engineer it and eventually simulate it. This breakthrough looks really promising. I wasn't really believing in Kurzweil's date for 2045 as the singularity (i thought more like around 2060) but now depending on further developments of this and its ramifications (whether we can scan the brain with it) i must say i'm getting much more optimistic.
#10
Posted 19 January 2009 - 07:33 AM
http://www.technolog...medicine/21950/
Very promising for many things, including bio-sciences.
#11
Posted 20 January 2009 - 05:46 AM
I don't know what the fuss is about either. The only reason that the PR people have generated so many orders of magnitude is from comparing it to something that is completely different. It's not an MRI in the sense that people normally think of them. If it's ultimately to be useful as a tool for determination of macromolecular structure, then it needs about 20 times better resolution still.I don't know what the fuss is about. This is Magnetic Force Microscopy, which is just another flavor of scanning probe microscopy. In other words, it's a way of "feeling" atoms on a surface that is poked with a sharp needle. It's been around for many years.
#12
Posted 20 January 2009 - 06:01 AM
#13
Posted 20 January 2009 - 06:13 PM
Yes, you are wrong. Imagine that the invention of the microscope was announced as "a new kind of telescope that can see details 100 million times smaller than previous telescopes!" Now imagine that this new and improved "telescope" (when it's not really a telescope) was actually invented years earlier. That's what you have here. If people upon hearing about the allegedly new kind of telescope (which was actually a microscope) then wondered if soon they would be able to see the surface of the moon with 10 micrometer resolution by just looking at it from Earth with the new instrument, that would also be what you have here.Actually? this rate of MRI resolution growing looks to me much faster than the rate that Ray kurzweil was talking about in his book....
Am I wrong about this?
In summary, these news stories are being grossly misunderstood.
#14
Posted 20 January 2009 - 06:25 PM
guess i should have read more than the title.
#15
Posted 20 January 2009 - 06:26 PM
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