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A team of mathematicians and engineers at Rensselaer Polytechnic Institute (RPI) has been working on a new techology for medical imaging. This technology, still under development, is called Electrical Impedance Imaging.
It works by applying tiny electrical currents through electrodes placed on the skin, measuring the corresponding voltage response, and using the results to provide an image of the body's tissues and fluids. (This works as different body parts have different electrical properties.)
This figure shows the impedance image of a simulated heart and lungs.
For more information, see the article Mathematical Insights for Medical Imaging by Barry Cipra, which appeared in Volume 2 of What's Happening in the Mathematical Sciences.
- Steven Weintraub
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