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Titolo:
Comparison of performances of electrical impedance tomography evaluated with 2-D and 3-D models
Autore:
Chateaux, JF; Nadi, M;
Indirizzi:
Univ Nancy 1, Fac Sci, Lab Instrumentat Elect Nancy, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54506 06 Vandoeuvre Nancy, France
Titolo Testata:
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
fascicolo: 11, volume: 48, anno: 2000,
parte:, 1
pagine: 1874 - 1878
SICI:
0018-9480(200011)48:11<1874:COPOEI>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Keywords:
biomedical engineering; biomedical impedance imaging; electromagnetic fields; error analysis; simulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Chateaux, JF Univ Nancy 1, Fac Sci, Lab Instrumentat Elect Nancy, F-54506 Vandoeuvre Nancy, France Univ Nancy 1 Vandoeuvre Nancy France F-54506 Nancy, France
Citazione:
J.F. Chateaux e M. Nadi, "Comparison of performances of electrical impedance tomography evaluated with 2-D and 3-D models", IEEE MICR T, 48(11), 2000, pp. 1874-1878

Abstract

This paper describes electrical impedance tomography (EIT) sensitivity evaluation using two models. The first is the classical circular two-dimensional (2-D) model used by past authors. The second is a three-dimensional (3-D) cylindrical model, which takes into account the height of the object under study. Having reported the analytical expression of the potential Field of the 2-D model, we derive an equivalent solution for the 3-D case. Having analyzed the convergence of the solutions, we compute for different conductivity perturbations the ratio of the sensitivities obtained with the two models. Results indicate that the 2-D model, as compared with the 3-D model, generally overestimates sensitivity by a factor of two unless the conductivity perturbation is extensive and more conductive than the principal medium. In such a case, the 2-D model tends to underestimate EIT sensitivity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 23:28:17