Dielectric properties of fresh human blood
- Resource Type
- Conference
- Authors
- Salahuddin, Saqib; Farrugia, Lourdes; Sammut, Charles V.; O'Halloran, Martin; Porter, Emily
- Source
- 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA) Electromagnetics in Advanced Applications (ICEAA), 2017 International Conference on. :356-359 Sep, 2017
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Blood
Dielectrics
Permittivity
Conductivity
Temperature measurement
Permittivity measurement
- Language
The dielectric properties of blood are extremely important for electromagnetic medical applications such as imaging, hyperthermia and ablation. The aim of this paper is to investigate the dielectric properties of human blood and examine the effects of anti-coagulant agents over a broad frequency range. The measurements were performed using freshly extracted human blood samples with and without the added agents. The measurements were performed within 20 mins after extracting the blood sample. The obtained results demonstrate a significant variation between the dielectric properties of blood with and without anti-coagulant agents. The difference is larger in conductivity than in relative permittivity. The results also demonstrate clear variation in the dielectric properties of female and male blood samples. The findings in this paper suggest that measurements conducted on blood samples with the added agents may not represent the natural in-vivo and inter-patient variations in blood properties. In order to have an accurate representation of in-vivo blood dielectric properties, all factors should be considered carefully.