Abstract
The use of electrical impedance tomography to monitor water in the lungs is the starting point to review hardware design options. The recommended design includes standard boards, multiplexers and a modified Howland current source. The inverse problem is described, and images obtained with original IMPETOM (492 pixels), NOSER (2048 pixels) and GREIT (1024 pixels) algorithms are compared.
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Acknowledgements
Interest in electrical bioimpedance and motivation to develop EIT systems was originated by a clinical request by Professor Javier Hurtado and associates Dr. Walter Olivera and Dr. Cristina Santos in 1986, at that time active in the foundation of the Pulmonary Functional Testing Laboratory of the University Hospital of Uruguay. Pioneering work by Dr. Fernando Nieto—prematurely deceased 2001—with one of the authors gave as a result our first bioimpedance spectroscopic tetra-electrode instrument in 1994 which prompted us to tackle the development of an EIT device with successive prototype versions. Editorial assistance with intensive care insight and counselling by Dr. Bruno Simini of Ospedale di Lucca, Italy, was very much appreciated and is greatly thanked for. The work of the following students since 1994 is acknowledged here: Cecilia Frugoni, Ramiro Escuder, Lauro Artía, Raúl Hartman, Jorge Lobo, Mateo Ruétalo, Adriana Ferreira, Alfredo Rodriguez, Santiago González, Andrés Liguori, Walter Quinteros, Nicolás Alfaro and Fernanda Martinucci. Special thanks are due to Professor Roberto Markarian and to Dr. Pablo Musé for their interest and suggestions during their 2013 graduate course on Real and Functional Analysis. Several colleagues have given substantial help to this work including, but not limited to, Pablo Mazzara, Rafael Canetti, Linder Reyes and Daniel Geido.
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Simini, F., Santos, E., Arregui, M. (2018). Electrical Impedance Tomography to Detect Trends in Pulmonary Oedema. In: Simini, F., Bertemes-Filho, P. (eds) Bioimpedance in Biomedical Applications and Research. Springer, Cham. https://doi.org/10.1007/978-3-319-74388-2_4
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