Title :
Three dimensional electrical impedance tomography of the human thorax
Author :
Metherall, P. ; Smallwood, R.H. ; Barber, D.C.
Author_Institution :
Dept. of Med. Phys. & Clinical Eng., Sheffield Univ., UK
fDate :
31 Oct-3 Nov 1996
Abstract :
A problem associated with two dimensional (2D) EIT is that the injected current is not confined to the plane in which it is applied. Off-plane conductivity changes therefore have a significant effect on the reconstructed image. We have implemented a 3D reconstruction algorithm with 64 electrode data collection system and have produced 3D images of the human thorax
Keywords :
electric impedance imaging; image reconstruction; inverse problems; medical image processing; singular value decomposition; 3D electrical impedance tomography; 3D reconstruction algorithm; 64 electrode data collection system; FFT; human thorax; image reconstruction; node potentials; off-plane conductivity changes; pseudo-inverse; sensitivity matrix; truncated SVD; voltage gradient; Conductivity; Electrodes; Humans; Image reconstruction; Impedance; Reconstruction algorithms; Symmetric matrices; Thorax; Tomography; Voltage;
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.1996.651962
