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"We've got a sneaking suspicion that the whole idea of \"minimally invasive\" procedures will soon become a matter of perspective, as Canadian researchers are dreaming up yet another method of perusing parts of your innards you never thought possible. If the brilliant minds at &amp;Eacute;cole Polytechnique Montr&amp;eacute;al have their way, microscopic medical beads could eventually be used to inspect, pass medicines, and take a joyride through even the smallest tubes in your body. Already being tested on live pig (and showing outstanding results, too), the idea is to utilize MRI machines to magnetically push objects through the bloodstream, which could reach locales that modern day surgeries can't. Interestingly enough, this procedure has far exceeded the brainstorming stage, and if you're one of those strong-stomached type, be sure to hit the read link for a couple of live action videos of the process."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2007/03/25/magnetic-beads-could-peruse-your-innards/>