TY - GEN
T1 - Examination of the sensing radius of open-ended coaxial probes in dielectric measurements of biological tissues
AU - La Gioia, Alessandra
AU - Porter, Emily
AU - O'Halloran, Martin
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/18
Y1 - 2017/10/18
N2 - A number of emerging electromagnetic diagnostic and therapeutic devices are designed based on estimates of benign and malignant tissue dielectric properties at different frequencies and temperatures. Accurate tissue dielectric measurements are crucial for the development of these technologies. Although the dielectric measurement procedure is straightforward, several factors can introduce uncertainties and errors into dielectric data. These errors or confounders can be strictly related to the acquisition system or to the intrinsic properties of the investigated tissues. Generally, uncertainties are higher in the dielectric measurement of diseased tissues, due to their heterogeneity and complex structure and composition. These confounders can be minimized by clearly defining the measurement sensing volume, and characterizing the tissue distribution within that volume. The volume is defined by sensing depth and radius. In this work, early-stage experiments are presented to investigate the sensing radius for biological heterogeneous tissues, with the aim of providing more accurate dielectric measurements to support medical device development.
AB - A number of emerging electromagnetic diagnostic and therapeutic devices are designed based on estimates of benign and malignant tissue dielectric properties at different frequencies and temperatures. Accurate tissue dielectric measurements are crucial for the development of these technologies. Although the dielectric measurement procedure is straightforward, several factors can introduce uncertainties and errors into dielectric data. These errors or confounders can be strictly related to the acquisition system or to the intrinsic properties of the investigated tissues. Generally, uncertainties are higher in the dielectric measurement of diseased tissues, due to their heterogeneity and complex structure and composition. These confounders can be minimized by clearly defining the measurement sensing volume, and characterizing the tissue distribution within that volume. The volume is defined by sensing depth and radius. In this work, early-stage experiments are presented to investigate the sensing radius for biological heterogeneous tissues, with the aim of providing more accurate dielectric measurements to support medical device development.
KW - Biological tissues
KW - Dielectric properties
KW - Open-ended coaxial probe
KW - Sensing radius, electromagnetic medical technologies
UR - https://www.scopus.com/pages/publications/85042193856
U2 - 10.1109/APUSNCURSINRSM.2017.8072150
DO - 10.1109/APUSNCURSINRSM.2017.8072150
M3 - Conference Publication
AN - SCOPUS:85042193856
T3 - 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
SP - 215
EP - 216
BT - 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017
Y2 - 9 July 2017 through 14 July 2017
ER -