Distinguishability analysis of an induced current EIT system using discrete coils


Eyuboglu B. , Koksal A. , Demirbilek M.

PHYSICS IN MEDICINE AND BIOLOGY, cilt.45, ss.1997-2009, 2000 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 45 Konu: 7
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1088/0031-9155/45/7/321
  • Dergi Adı: PHYSICS IN MEDICINE AND BIOLOGY
  • Sayfa Sayıları: ss.1997-2009

Özet

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.