Electrical Impedance Tomography Eit
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Procedure for measurement of conductivity in vivo for develop an anatomic atlas for electric impedance tomography. / Procedimento de medida de condutividade in vivo para desenvolver um atlas anatômico de tomografia por impedância elétrica.
This paper presents a procedure for measuring conductivity in biological tissues of swine chests in vivo. This will allow an increase of resolution in images of EIT, describing the probability of occurrence in such images in a population sample. The EIT is a recently developed technique for obtaining medical images and monitoring biological tissues. Given th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/06/2010
-
2. Development of a methodology for identification of cardiac region in images of electrical impedance tomography of pulmonary perfusion by means of wavelet transform / Desenvolvimento de uma metodologia para identificação de região cardíaca em imagens de tomografia de impedância elétrica de perfusão pulmonar por meio da transformada wavelet
Electrical Impedance Tomography (EIT) is an imaging technique, still in development, which allows imaging of the distribution of conductivity in a cross section of an object under analysis from electrical measures made on its surface. Despite its benefits and advantages over other imaging techniques, its images still do not offer a good spatial resolution. O
Publicado em: 2009
-
3. Boundary Element Method for Electrical Impedance Tomography / Método dos elementos de contorno para tomografia de impedância elétrica
The Electrical Impedance Tomography (EIT) is a quite new technique and has proved to be promising in obtaining inner body images exploring the differences between electric qualities (conductivity and permissity) of different materials that constitute it. The technique is based on applying an electric potential profile or electric current on the boundary of t
Publicado em: 2009
-
4. Real-time detection of pneumothorax using electrical impedance tomography / Detecção de pneumotórax em tempo real através da tomografia de impedância elétrica
Introduction: Pneumothorax is a frequent complication during mechanical ventilation. Electrical impedance tomography (EIT) is a noninvasive tool that allows real-time imaging of regional ventilation. The purpose of this study was to: 1) identify characteristic changes in the EIT signals associated with pneumothoraces; 2) develop and fine-tune an algorithm fo
Publicado em: 2008
-
5. Estudo da obtenção de imagens de tomografia de impedância elétrica do pulmão pelo método de otimização topológica. / Study of electrical impedance tomography image reconstruction of lungs by topology optimization method.
The Electrical Impedance Tomography (EIT) is a recent monitoring technique on biological tissues. The EIT allows us to obtain images representing a transversal plane of any section of human body (head, thorax, thigh, etc). Each image pixel is related to its corresponding value of electrical impedance (or resistivity). The images are generated from voltage va
Publicado em: 2006
-
6. Extended Kalman filter applied to electrical impedance tomography. / Filtro estendido de Kalman aplicado à tomografia por impedância elétrica.
A Tomografia por Impedância Elétrica (EIT) é um método que utiliza estimativas da distribuição de condutividade ou impedância de tecidos orgânicos na obtenção de imagens médicas. O procedimento de obtenção das imagens baseia-se em medições de correntes ou voltagens no contorno da região sob análise e na estimação de parâmetros de um model
Publicado em: 2001