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Table 1 Recovered conductivity values of the first phantom from the reconstructed CTI images

From: Validation of conductivity tensor imaging using giant vesicle suspensions with different ion mobilities

ROI

High-frequency conductivity (\(\sigma _\text{H}\))

Extracellular volume fraction (\(\alpha\))

Extracellular diffusion coefficient (\(d_\text{e}^\text{w}\))

Intracellular diffusion coefficient (\(d_\text{i}^\text{w}\))

Scale factor (\(\eta\))

Low-frequency conductivity

\(C_{xx}\)

\(C_{yy}\)

\(C_{zz}\)

Giant vesicle suspension

\(1.89 \pm 0.02\)

\(0.13\pm 0.04\)

\(1.93\pm 0.12\)

\(0.98\pm 0.10\)

\(0.21\pm 0.04\)

\(0.29\pm 0.05\)

\(0.30\pm 0.07\)

\(0.29\pm 0.05\)

Electrolyte #1

\(1.86\pm 0.04\)

\(1.00\pm 0.02\)

\(2.90\pm 0.01\)

−

\(0.64\pm 0.01\)

\(1.45\pm 0.04\)

Electrolyte #2

\(1.11\pm 0.04\)

\(2.85\pm 0.02\)

\(0.38\pm 0.01\)

\(0.85\pm 0.03\)

  1. Mean and standard deviation (SD) values of the diagonal components of the conductivity tensor \(\mathbf{C}\) and the intermediate variables including the high-frequency conductivity \(\sigma _\text{H}\), extracellular volume fraction \(\alpha\), extracellular water diffusion coefficient \(d_\text{e}^\text{w}\), intracellular water diffusion coefficient \(d_\text{i}^\text{w}\) and scale factor \(\eta\). The \(\text{mean} \pm \text{SD}\) values were computed from all pixels within each ROI