Method and apparatus for imaging electrical activity in a...

Details Method and apparatus for imaging electrical activity in a... Method and apparatus for imaging electrical activity in a...

A - Human Necessities

61

B

A61B 5/04 (2006.01) A61B 5/0408 (2006.01) G06F 17/00 (2006.01)

Patent

CA 2094804

An array of electrodes is applied to an internal or ex- ternal surface of a biological system such as a human being. The electrodes generate signals which are processed to com- pure a surface differential of the surface potential at a multi- plicity of spatial locations within a given time epoch. The sig- nal processing is repeated for multiple sequential time epochs and an image is constructed from the surface differential of the surface potential for each time epoch. Thereafter, the se- querttial images corresponding to sequential time epochs-are displayed: The two-dimensional image changes as the distrib- ution of bioelectric sources evolves so as to provide a motion picture of electrical activity.

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