Dielectric properties of human fetal organ tissues at radio frequencies.
The in vitro dielectric properties of human fetal organ tissues were measured in the frequency range from 100 kHz to 500 MHz at 24 degrees C. The dielectric measurements were performed by using a network analyzer (HP4195A) and a coaxial line capacitive sensor. The tested samples, including skin, muscle, heart, lung, liver, kidney, spleen, and brain tissues, were obtained from the legal abortion of five women with 14-16 weeks gestation periods.
Department of Biomedical Engineering, Peking Union Medical College, Beijing, Peoples Republic of China.
Y
Y
Lu
H
H
Cui
J
J
Yu
S
S
Mashimo
D000029:Abortion, Legal; D001921:Brain / Q000196:embryology / Q000502:physiology; D004553:Electric Conductivity; D017097:Electric Impedance; D004594:Electrophysiology; D005260:Female; D005318:Fetal Heart / Q000502:physiology; D005333:Fetus / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D007668:Kidney / Q000196:embryology / Q000502:physiology; D008099:Liver / Q000196:embryology / Q000502:physiology; D008168:Lung / Q000196:embryology / Q000502:physiology; D018482:Muscle, Skeletal / Q000196:embryology / Q000502:physiology; D011247:Pregnancy; D011846:Radio Waves; D012867:Skin / Q000196:embryology; D012879:Skin Physiological Phenomena; D013154:Spleen / Q000196:embryology / Q000502:physiology; D014781:Viscera / Q000196:embryology* / Q000502:physiology