Title :
Reconstructing current distributions from biomagnetic measurements under large external noise disturbances
Author :
Sekihara, Kensuke ; Scholz, Bernhard
Author_Institution :
Central Res. Lab., Hitachi Ltd, Tokyo
fDate :
3/1/1994 12:00:00 AM
Abstract :
External noise fields cause spatially coherent noise in the biomagnetic data measured by a multichannel magnetometer. The authors propose a method of incorporating this spatial coherence into current-density reconstruction. This method can reconstruct current distributions from biomagnetic measurements affected by external noise fields. Computer simulations demonstrate its effectiveness
Keywords :
bioelectric phenomena; biomagnetism; image reconstruction; medical image processing; noise; biomagnetic imaging; biomagnetic measurements; computer simulations; current distributions reconstruction; current-density reconstruction; large external noise disturbances; medical imaging; multichannel magnetometer; spatial coherence; Biomagnetics; Coils; Computer simulation; Current measurement; Detectors; Image reconstruction; Magnetic field measurement; Magnetic noise; Noise measurement; Working environment noise;
Journal_Title :
Medical Imaging, IEEE Transactions on
