Details

Autor(en) / Beteiligte

• Casas, O
• Bragós, R
• Riu, P J
• Rosell, J

Titel

Algorithms for parametric images in MEIT systems

Ist Teil von

• Physiological measurement, 2000-02, Vol.21 (1), p.35-43

Ort / Verlag

England

Erscheinungsjahr

2000

Quelle

MEDLINE

Beschreibungen/Notizen

• In this work we show the algorithms developed to extract the Cole parameters from multi-frequency EIT. With these parameters it is possible to obtain information about various different tissues and their pathologies. The algorithms developed obtain the Cole-model parameters from the real and imaginary parts of impedance, or using only the real part, without problems of convergence. A study of the influence of noise is performed with simulations. We find a correct solution in all cases with signal to noise ratio in the data higher than 40 dB. Finally, we show parametric images of the human abdomen obtained with these algorithms.