Title :
Construction of anatomy-based priors with anisotropic characteristics with application to electrical impedance tomography
Author :
Kaipio, J.P. ; Kolehmainen, V. ; Vauhkonen, M. ; Somersalo, E.
Author_Institution :
Dept. of Appl. Phys., Kuopio Univ., Finland
fDate :
29 Oct-1 Nov 1998
Abstract :
We propose a method for the regularization of biomedical inverse problems and discuss its application to the electrical impedance tomography (EIT). The approach is deterministic but it has a clear statistical interpretation. The method is based on available anatomical information on the investigated object, that can be only of approximative nature. The method is applied to the estimation of the conductivity distribution of the simulated head and it is shown that the implicit statistical characteristics of the regularization method are feasible in this case
Keywords :
electric impedance imaging; finite element analysis; image reconstruction; inverse problems; medical image processing; FEM elements; Sobolev space; anatomy-based priors; anisotropic characteristics; biomedical inverse problems; conductivity distribution; deterministic approach; electrical impedance tomography; regularization; simulated head; statistical inversion; Anisotropic magnetoresistance; Biomedical measurements; Conductivity; Electrodes; Magnetic resonance imaging; Mathematical model; Noise measurement; Piecewise linear approximation; Surface impedance; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745626
