Forward Problem Solution for Contactless Electrical Conductivity Imaging with Realistic Head Model

Zengin R., GENÇER N. G.

14th National Biomedical Engineering Meeting, İzmir, Türkiye, 20 - 22 Mayıs 2009, ss.183-184 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/biyomut.2009.5130295
  • Basıldığı Şehir: İzmir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.183-184
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this study, forward problem of contactless electrical conductivity imaging is solved by using realistic-head model. Realistic-head model is modelled by a single volume with the ANSYS software and divided into hexahedral elements. Conductivity information for each element is obtained from MR gray-scale images obtained as a result of segmentation. For realistic-head model, a coil of radius I cm, I cm above the scalp and carrying a sinusoidal (50 kHz) current of I A is used as a source. Realistic-head modelis composed of the scalp, skull, brain fluid and brain (gray matter and while matter) tissues. For each tissue magnenetic flux densities and current densities have been obtained.