Biomagnetic imaging of three-dimensional current distributions

Ceon Ramon; Michael G. Meyer; Lee L. Huntsman

doi:10.1117/12.154496

14 September 1993 Biomagnetic imaging of three-dimensional current distributions

Ceon Ramon, Michael G. Meyer, Lee L. Huntsman

Proceedings Volume 1898, Medical Imaging 1993: Image Processing; (1993) https://doi.org/10.1117/12.154496
Event: Medical Imaging 1993, 1993, Newport Beach, CA, United States

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.

Citation Download Citation

Ceon Ramon, Michael G. Meyer, and Lee L. Huntsman "Biomagnetic imaging of three-dimensional current distributions", Proc. SPIE 1898, Medical Imaging 1993: Image Processing, (14 September 1993); https://doi.org/10.1117/12.154496

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