Forward problem solution for contactless electrical conductivity imaging with realistic head model

In this study, forward problem of contactless electrical conductivity imaging is solved by using realistic-head model. Realistic-head model is modelled by a single volume with the ANSYS software and divided into hexahedral elements. Conductivity information for each element is obtained from MR gray-...

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Bibliographic Details
Main Authors: Zengin, Reyhan, Gencer, Nevzat G.
Format: Conference Proceeding
Language:English
Subjects:
Brain modeling
Coils
Conductivity
Contacts
Gray-scale
Image segmentation
Magnetic flux density
Magnetic heads
Scalp
Skull
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Summary:In this study, forward problem of contactless electrical conductivity imaging is solved by using realistic-head model. Realistic-head model is modelled by a single volume with the ANSYS software and divided into hexahedral elements. Conductivity information for each element is obtained from MR gray-scale images obtained as a result of segmentation.For realistic-head model, a coil of radius 1 cm, 1 cm above the scalp and carrying a sinusoidal (50 kHz) current of 1 A is used as a source. Realistic-head model is composed of the scalp, skull, brain fluid and brain (gray matter and white matter) tissues. For each tissue magnetic flux densities and current densities have been obtained.
DOI:10.1109/BIYOMUT.2009.5130295