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Updated: May 25, 2026
08:06
Porous Substrate-Based Electroporation with Transepithelial Electrical Impedance Monitoring
Published on: September 27, 2024
Experimental characterization of intrapulse tissue conductivity changes for electroporation
Robert E Neal1, Paulo A Garcia, John L Robertson
1Bioelectromechanical Systems Laboratory, Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, VA 24060, USA. nealre@vt.edu
Summary
Irreversible electroporation (IRE) uses electric pulses to ablate tissue. Understanding how kidney tissue conductivity changes during IRE is crucial for accurate treatment planning and improved numerical models.
Area of Science:
- Biomedical Engineering
- Electrophysiology
- Tissue Engineering
Background:
- Electroporation increases cell membrane permeability via electric pulses.
- Irreversible electroporation (IRE) is a non-thermal ablation method for pathologic tissues.
- Accurate modeling of electric field distribution is essential for IRE treatment planning.
Purpose of the Study:
- To experimentally characterize changes in kidney tissue properties during electric pulsing.
- To improve numerical models for predicting IRE treatment volumes.
- To develop robust predictive treatment planning methods for IRE therapy.
Main Methods:
- Kidney tissue samples were subjected to electric pulses between plate electrodes.
- Intrapulse voltage and current data were measured to determine tissue conductivity.
- Tissue conductivity was modeled as a function of the applied electric field.
Main Results:
- Tissue conductivity was found to change dynamically during electric pulsing.
- A conductivity curve was established based on experimental data.
- Numerical models demonstrated the impact of incorporating these conductivity changes.
Conclusions:
- Accounting for dynamic changes in tissue conductivity improves the accuracy of IRE electric field modeling.
- This research is vital for enhancing the reliability and success of IRE in clinical applications.
- Further development of predictive treatment planning is needed for widespread IRE adoption.
