## Abstract Microwaves play a vital role in the diagnosis and treatment of diseases caused by the abnormal mineralization of biological fluids in human body. First hand information regarding the dielectric behavior of these minerals facilitates to detect these crystals. This paper attempts a compar
Dielectric properties of lens tissue at microwave frequencies
β Scribed by M. C. Steel; Dr. R. J. Sheppard
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 438 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0197-8462
No coin nor oath required. For personal study only.
β¦ Synopsis
The relative permittivity and conductivity of rabbit eye lens were measured in the frequency domain between 2 and 18 GHz at temperatures of 37 and 20 " C . An analysis of the data suggested that a significant proportion of the bulk water in nuclear and cortical lens tissue may behave differently to pure water. In addition, the Maxwell-Fricke mixture theory was used to estimate the amount of hydrated water that relaxes far below 1 GHz.
π SIMILAR VOLUMES
## Abstract Microwave technology plays a key role in diagnostic and therapeutic medicine. This paper presents a comprehensive study of dielectric properties of urine collected at different intervals of time at microwave frequencies. Measurement is done using cavity perturbation technique at the Sβb
The in vitro dielectric properties of human fetal organ tissues were measured in the frequency range from 100 kHz to 500 MHz at 24 "C. The dielectric measurements were performed by using a network analyzer (HP4195A) and a coaxial line capacitive sensor. The tested samples, including skin, muscle, he
The complex dielectric constant of aqueous hemoglobin solution waa measured at 9.5 GHz. A microwave technique allowing phase and attenuation settings with an accuracy of 0.3" and 0.03 db was used. The shift of the relaxation wavelength and the hydration values of horse hemoglobin were determined for
## Abstract An openβended coaxial line sensor in conjunction with an automatic network analyzer was used to measure in vivo the permittivity of several feline tissues (skeletal and smooth muscle, liver, kidney, spleen, and brain β gray and white matter) at frequencies between 10 MHz and 1 GHz. The
## Abstract An openβended coaxial line and an improved measurement method employing a computer controlled network analyzer were used to measure the permittivity of cat tissues. Muscle, spleen, kidney cortex, liver,and brain cortex were measured in vivo and in vitro at frequencies between 100 MHz an