Title :
Conductivity and permittivity images from an induced current electrical impedance tomography system
Author :
Scaife, J.M. ; Tozer, R.C. ; Freeston, I.L.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
9/1/1994 12:00:00 AM
Abstract :
This paper describes a method for generating separate tomographic images of the conductivity and permittivity distributions within a region of interest. The method uses single frequency phase and amplitude measurements of peripheral voltage differences caused by electromagnetically induced internal current patterns. The basis of the separation technique is described and images constructed from simulated and measured data from a two-dimensional phantom are presented to demonstrate the separation process
Keywords :
biomedical measurement; electric impedance imaging; electrical conductivity measurement; permittivity measurement; phase measurement; voltage measurement; amplitude measurements; conductivity distribution; electromagnetically induced internal current patterns; induced current electrical impedance tomography; medical diagnostics; peripheral voltage differences; permittivity distribution; permittivity images; separation process; separation technique; single frequency phase measurement; tomographic images; two-dimensional phantom;
Journal_Title :
Science, Measurement and Technology, IEE Proceedings -
DOI :
10.1049/ip-smt:19941076
