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Proceedings Paper

Biomagnetic imaging of three-dimensional current distributions
Author(s): Ceon Ramon; Michael G. Meyer; Lee L. Huntsman
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Paper Abstract

Biomagnetic reconstruction of a current distribution located in a three-dimensional space from the sampled magnetic field was performed. Simulations were performed on a circular current distribution. The magnetic field was sampled in a planar surface using the Biot-Savart Law. A cubic volume space was selected as a reconstruction space. It was divided into cubic voxels. Reconstruction was performed to compute the current density in each voxel by applying pseudo-inverse technique. The initial reconstruction showed a rough image of the current buried in the noise. The image was enhanced by thresholding of background noise. The final image showed a good resemblance to the original shape.

Paper Details

Date Published: 14 September 1993
PDF: 8 pages
Proc. SPIE 1898, Medical Imaging 1993: Image Processing, (14 September 1993); doi: 10.1117/12.154496
Show Author Affiliations
Ceon Ramon, Univ. of Washington (United States)
Michael G. Meyer, Neopath (United States)
Lee L. Huntsman, Univ. of Washington (United States)


Published in SPIE Proceedings Vol. 1898:
Medical Imaging 1993: Image Processing
Murray H. Loew, Editor(s)

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