Direct 2-D Reconstructions of Conductivity and Permittivity From EIT Data on a Human Chest

Autor(es)

Herrera, Claudia N. L. ^[1] ; Vallejo, Miguel F. M. ^[1] ; Mueller, Jennifer L. ^{[1, 2]} ; Lima, Raul G. ^[3]

Afiliação do(s) autor(es)

^[1] Colorado State Univ, Dept Math, Ft Collins, CO 80521 - USA

^[2] Colorado State Univ, Sch Biomed Engn, Ft Collins, CO 80521 - USA

^[3] Univ Sao Paulo, Dept Mech Engn, BR-05508070 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IEEE TRANSACTIONS ON MEDICAL IMAGING; v. 34, n. 1, p. 267-274, JAN 2015.
• Citações Web of Science: 11

Resumo

A novel direct D-bar reconstruction algorithm is presented for reconstructing a complex conductivity distribution from 2-D EIT data. The method is applied to simulated data and archival human chest data. Permittivity reconstructions with the aforementioned method and conductivity reconstructions with the previously existing nonlinear D-bar method for real-valued conductivities depicting ventilation and perfusion in the human chest are presented. This constitutes the first fully nonlinear D-bar reconstructions of human chest data and the first D-bar permittivity reconstructions of experimental data. The results of the human chest data reconstructions are compared on a circular domain versus a chest-shaped domain. (AU)

• Processo FAPESP: 08/08739-7 - Um método D-bar para estimar admitividade em 2-D através de tomografia por impedância elétrica
• Beneficiário: Claudia Natalia Lara Herrera
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 08/05951-5 - Reconstrução não-linear completa de imagens de Tomografia por Impedância Elétrica utilizando o método D-Bar 2D
• Beneficiário: Miguel Fernando Montoya Vallejo
• Modalidade de apoio: Bolsas no Brasil - Doutorado