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Influence of heart motion on cardiac output estimation by means of electrical impedance tomography: a case study
Electrical impedance tomography (EIT) is a non-invasive imaging technique that can measure cardiac-related intra-thoracic impedance changes. EIT-based cardiac output estimation relies on the assumption that the amplitude of the impedance change in the ventricular region is representative of stroke volume (SV). However, other factors such as heart motion can significantly affect this ventricular impedance change. In the present case study, a magnetic resonance imaging-based dynamic bio-impedance model fitting the morphology of a single male subject was built. Simulations were performed to evaluate the contribution of heart motion and its influence on EIT-based SV estimation

Authors: M. Proença, F. Braun, M. Rapin, J. Solà, A. Adler, B. Grychtol, S.H. Bohm, M. Lemay, J.-P. Thiran JP.

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