Analysis of Capacitance Measurement of Human Brain Activity to Optimize ECVT System as Brain Imaging Modality
Fitria Ariani, BS Thesis, Dept. of Physics, Islamic State University of Syarif Hidayatullah, July 2014
In medical field, EEG is a technology which is used to detect human brain electrical activity. EEG, used to acquire brain signals, is only able to get those signals at the surface area, while the signals in the deeper brain cannot be acquired. Therefore, there is a need to look for other modalities that can acquire signals in the deeper brain while still in non-invasive and non-destructive method. In this study, ECVT, a non-invasive and non-destructive method using electric field to scan the dielectric medium, is used to acquire the human brain signals. ECVT utilizes the electrical capacitance measurements from pairs of electrodes to determine the value of permittivity distribution of an object. In this study, ECVT has been analyzed to determine the ability to read brain signals. Research methods in this study are simulated measurement of carrier signal, simulated measurement of brain signals without a carrier signal, and simulated measurement of brain signals with a carrier signal. This study shows that ECVT, based on active and passive measurements, can acquire human brain signals.