Distinguishability analysis of an induced current EIT system using discrete coils

Eyuboglu B., Koksal A., Demirbilek M.

PHYSICS IN MEDICINE AND BIOLOGY, cilt.45, sa.7, ss.1997-2009, 2000 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 7
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1088/0031-9155/45/7/321
  • Dergi Adı: PHYSICS IN MEDICINE AND BIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1997-2009
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

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.