Title :
Imaging of the head using induced current impedance tomography
Author :
Towers, C.M. ; Freeston, I.L. ; Tozer, R.C.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
31 Oct-3 Nov 1996
Abstract :
The use of induced current electrical impedance imaging to detect epileptic foci has been simulated. The simulation uses a three dimensional finite element model to determine the sensitivity required of the measuring system in order to detect an epileptic focus represented as a cube of side 10 mm with a 10% change of conductivity. It is shown that the system can image foci near the edge of the region, but is less successful near the centre
Keywords :
brain; electric impedance imaging; image reconstruction; medical image processing; mesh generation; conductivity change; epileptic foci; head imaging; induced current impedance tomography; measuring system sensitivity; modified backprojection algorithm; reconstruction algorithm; three dimensional finite element model; Brain modeling; Coils; Conductivity; Electrodes; Epilepsy; Finite element methods; Impedance; Magnetic heads; Skull; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651970
