Electrical impedance tomography via filtered-back projection of fan current distribution: A numerical simulation
| Autor: | F. De Luca, R. Siciliano, B. C. De Simone, Cesare Cametti, A. Pachi |
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| Rok vydání: | 2002 |
| Předmět: |
Physics
Radon transform Phantoms Imaging Physiology Acoustics Biophysics Reconstruction algorithm General Medicine Models Theoretical Image Enhancement Data acquisition Electric Impedance Feasibility Studies Scattering Radiation Computer Simulation Radiology Nuclear Medicine and imaging Point (geometry) Plethysmography Impedance Current (fluid) Projection (set theory) Electrodes Electrical impedance tomography Electrical impedance Algorithms |
| Zdroj: | Bioelectromagnetics. 23:516-521 |
| ISSN: | 1521-186X 0197-8462 |
| DOI: | 10.1002/bem.10044 |
| Popis: | An approach to electrical impedance tomography (EIT) data acquisition inspired by NMR-filtered back-projection imaging with fan isochromat distribution is proposed. A current projection is generated by injecting current at a certain point of the sample and simultaneously collecting the current itself at different points on the half space opposite the point of current injection. After that, the injection is shifted to another point and collected as above and so on. A very simple algebra and software support the numerical simulations. This method is expected to be more sensitive than the traditional method based on potential measurements. A preliminary low resolution experiment is presented. |
| Databáze: | OpenAIRE |
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