TY - GEN
T1 - Evaluation of the Feasibility of Three Custom-made Tetrapolar Probes for Electrical Characterization of Cardiac Tissue
AU - Benchakroun, Hamza
AU - O'Loughlin, Declan
AU - Istuk, Niko
AU - O'Halloran, Martin
AU - Gioia, Alessandra La
N1 - Publisher Copyright:
© 2021 EurAAP.
PY - 2021/3/22
Y1 - 2021/3/22
N2 - Non-thermal cardiac ablation can be used to treat atrial fibrillation and consists in applying a pattern of electrical pulses to the targeted tissue. Knowing the conductivity of the tissue gives an extent of the pulse parameters needed for the ablation. However, there is a lack of conductivity data for cardiac tissues in the range of frequencies of non-thermal ablation. To this extent, this paper presents a feasibility study for the use of three tetrapolar probes, a planar probe, a needle probe and a pin probe, for cardiac tissue electrical characterization. Probe performance was evaluated across the range of 0.1-100 kHz. The planar probe was the most accurate in reference liquid measurements. Thus, it was used to characterize ovine ex vivo cardiac tissue, which measured conductivity is lower than that from the literature. These results suggest the need for a probe design optimization to improve the contact with the tissue.
AB - Non-thermal cardiac ablation can be used to treat atrial fibrillation and consists in applying a pattern of electrical pulses to the targeted tissue. Knowing the conductivity of the tissue gives an extent of the pulse parameters needed for the ablation. However, there is a lack of conductivity data for cardiac tissues in the range of frequencies of non-thermal ablation. To this extent, this paper presents a feasibility study for the use of three tetrapolar probes, a planar probe, a needle probe and a pin probe, for cardiac tissue electrical characterization. Probe performance was evaluated across the range of 0.1-100 kHz. The planar probe was the most accurate in reference liquid measurements. Thus, it was used to characterize ovine ex vivo cardiac tissue, which measured conductivity is lower than that from the literature. These results suggest the need for a probe design optimization to improve the contact with the tissue.
KW - cardiac tissue
KW - impedance measurements
KW - tetrapolar probe
UR - https://www.scopus.com/pages/publications/85105476281
U2 - 10.23919/EuCAP51087.2021.9410978
DO - 10.23919/EuCAP51087.2021.9410978
M3 - Conference Publication
AN - SCOPUS:85105476281
T3 - 15th European Conference on Antennas and Propagation, EuCAP 2021
BT - 15th European Conference on Antennas and Propagation, EuCAP 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th European Conference on Antennas and Propagation, EuCAP 2021
Y2 - 22 March 2021 through 26 March 2021
ER -