TY - GEN
T1 - On the Pressure Sensing of Biological Fluids Using Microwaves
AU - Gaddam, Sunil
AU - Samaddar, Poulami
AU - Gopalakrishnan, Keerthy
AU - Damani, Devanshi
AU - Shivaram, Suganti
AU - Dey, Shuvashis
AU - Mitra, Dipankar
AU - Roy, Sayan
AU - Arunachalam, Shivaram P.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In vivo biological fluid pressures have been linked to many diseases. Elevated blood pressure is a major risk factor for heart disease that affects millions of people across the world. Non-invasive blood pressure monitoring techniques have been limited to extremities of the body, like limbs, and are unable to measure dynamic internal pressures observed in deeper internal anatomical spaces like cardiac chambers, principal veins, cranial cavity, etc. Novel methods to investigate the internal biological pressures non-invasively can unlock new therapies to treat a wide range of diseases. Microwave-based sensing for biomedical applications is an active research area with the potential to expand in sensing vital physiological indicators like pressure. This study is an experimental investigation into the role of pressure on the dielectric properties of water to broaden the biomedical applications of microwave-based sensing. An experimental setup consisting of a pressure chamber with water and a co-axial probe was built to measure the dielectric properties at pressures ranging from 0 to 240 mm of Hg over a frequency range of 0.5-20 GHz. A comparison of the measurements shows a small and significant change in dielectric properties with varying pressures revealing the challenges and a direction for future scientific research.
AB - In vivo biological fluid pressures have been linked to many diseases. Elevated blood pressure is a major risk factor for heart disease that affects millions of people across the world. Non-invasive blood pressure monitoring techniques have been limited to extremities of the body, like limbs, and are unable to measure dynamic internal pressures observed in deeper internal anatomical spaces like cardiac chambers, principal veins, cranial cavity, etc. Novel methods to investigate the internal biological pressures non-invasively can unlock new therapies to treat a wide range of diseases. Microwave-based sensing for biomedical applications is an active research area with the potential to expand in sensing vital physiological indicators like pressure. This study is an experimental investigation into the role of pressure on the dielectric properties of water to broaden the biomedical applications of microwave-based sensing. An experimental setup consisting of a pressure chamber with water and a co-axial probe was built to measure the dielectric properties at pressures ranging from 0 to 240 mm of Hg over a frequency range of 0.5-20 GHz. A comparison of the measurements shows a small and significant change in dielectric properties with varying pressures revealing the challenges and a direction for future scientific research.
KW - blood pressure
KW - fluid pressure
KW - microwave sensing
KW - microwaves
UR - http://www.scopus.com/inward/record.url?scp=85172420107&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85172420107&partnerID=8YFLogxK
U2 - 10.1109/USNC-URSI52151.2023.10237799
DO - 10.1109/USNC-URSI52151.2023.10237799
M3 - Conference contribution
AN - SCOPUS:85172420107
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 175
EP - 176
BT - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Y2 - 23 July 2023 through 28 July 2023
ER -