2D sliced color map of the electric field distribution for a case where a significant difference in tumor coverage is observed as a result of the presence of the blood vessel.

<p>The color map is presented for a simplified model of ECT of a 10 mm tumor with a 4 electrode configuration and in the presence of a 7 mm vessel which is 0 mm away from the tumor. The color maps are shown for two vessel positions: A: Vessel perpendicular to the electrodes. B: Vessel parallel to the electrodes. The slices for which the color map is shown span the plane parallel to the vessel. The relative position of the planes along the third axis (the one which the plane does not span) is the same in both cases and fixed at -4 mm, 0 mm, and 4 mm away from the tumor center.</p

Analytical and numerical quantification and comparison of the local electric field in the tissue for different electrode configurations-1

<p><b>Copyright information:</b></p><p>Taken from "Analytical and numerical quantification and comparison of the local electric field in the tissue for different electrode configurations"</p><p>http://www.biomedical-engineering-online.com/content/6/1/37</p><p>BioMedical Engineering OnLine 2007;6():37-37.</p><p>Published online 15 Oct 2007</p><p>PMCID:PMC2100058.</p><p></p>s, b) four needle electrodes, c) six needle electrodes in two rows taking into account two-times higher conductivity of the target tissue compared to surrounding tissue (conductivity of the target tissue is = 0.4 S/m and conductivity of the surrounding tissue = 0.2 S/m). In all cases the applied voltage was set in such a way that = 1.15 V/cm

Optimal voltages for a model without the vessel, per tumor size, treatment type and electrode number.

<p>Diagonal voltage stands for voltage between the center electrode and surrounding electrodes. In the case of a configuration with 4 electrodes diagonal voltage is the voltage between non-neighbor electrodes.</p><p>Optimal voltages for a model without the vessel, per tumor size, treatment type and electrode number.</p

Electrode number and position per tumor size and treatment type.

<p>Electrode number and position per tumor size and treatment type.</p

Tumor coverage for ECT of simplified model of 30 mm tumor.

<p>The coverage is plotted against different distances between vessel and tumor, and with respect to different vessel positions and sizes. A: Vessel perpendicular to the electrodes. B: Vessel parallel to the electrodes.</p

Tumor coverage for ECT of simplified model of 10 mm tumor with 4 electrodes.

<p>The coverage is plotted against different distances between vessel and tumor, and with respect to different vessel positions and sizes. A: Vessel perpendicular to the electrodes. B: Vessel parallel to the electrodes.</p

Real patient cases used in our study.

<p>A: MRI of the liver for first patient case. B: Reconstructed 3D model of the first case with inserted electrodes. C: MRI of the liver for second patient case. D: Reconstructed 3D model of the second case with inserted electrodes. In all images the structure colored green is the tumor, while the nearby major vessels are colored blue.</p

Two different electrode configurations and two different positions of the vessel.

<p>A: 4 electrodes with vessel perpendicular to them. B: 5 electrodes with vessel parallel to them. “d” denotes distance from vessel to tumor.</p

Tumor coverage for ECT of real case second patient with 15 mm × 11 mm tumor.

<p>The coverage is plotted against different types of transformations used to induce an error in vessel geometry and with respect to different sizes of the error. A: Configuration with four electrodes. B: Configuration with five electrodes.</p

MOESM1 of Education on electrical phenomena involved in electroporation-based therapies and treatments: a blended learning approach

Additional file 1. Knowledge assessment test with the corresponding correct answers. The knowledge assessment test was composed of ten questions related to the educational content of the e-learning practical work. The questions and the corresponding correct answers to the questions