Distinguishability analysis of an induced current EIT system using discrete coils


Eyuboglu B. , Koksal A., Demirbilek M.

PHYSICS IN MEDICINE AND BIOLOGY, vol.45, no.7, pp.1997-2009, 2000 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 7
  • Publication Date: 2000
  • Doi Number: 10.1088/0031-9155/45/7/321
  • Title of Journal : PHYSICS IN MEDICINE AND BIOLOGY
  • Page Numbers: pp.1997-2009

Abstract

The distinguishability of a discrete coil induced current electrical impedance tomography system is analysed. The solution methodology of the forward problem of this system is explained. An optimization procedure using this forward problem solution is developed to find optimum currents that maximize the distinguishability. For the concentric inhomogeneity problem, it is shown that the coil currents can be optimized to focus the current density in any desired location, in the field of view. Optimum coil currents under the constraints of limited peak coil currents and limited total power are determined. Examples that demonstrate the performance of the system are presented.