Research on respiration course of human at different postures by electrical impedance tomography / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1004-1007, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-230738
ABSTRACT
In this paper, the respiration courses of human at different postures are reconstructed by electrical impedance tomography (EIT). Conjugate gradient least squares (CGLS) algorithm is applied to reconstruct the resistivity distribution during respiration courses, and the EIT images taken from human at flat lying, left lying, right lying, sitting and prone postures are reconstructed and compared. The relative changes of the resistivity in region of interest (ROI) are analyzed to evidence the influences caused by different postures. Results show that the changes in postures are the most influential factors for the reconstructions, and the EIT images vary with the postures. In human at flat-lying posture, the left and right lungs have larger pulmonary ventilation volume simultaneously, and the EIT-measured data are of lower variability.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Postura
/
Respiração
/
Algoritmos
/
Tomografia
/
Impedância Elétrica
/
Pulmão
/
Métodos
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2010
Tipo de documento:
Artigo
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