Experimental acquisition system for impedance tomography with active electrode approach.
An experimental system for impedance tomography has been constructed. The acquisition system uses 16 multifunctional active electrodes, each including a current source and a voltage buffer. Images of active and reactive parts of different target impedances in a phantom filled with liquid have been obtained. The system performance has been compared with those of other systems using either a mesh phantom or rods as point sources used for the determination of the modulation transfer function.
Rigaud
B
B
INSERM-U305, Hôtel Dieu, Toulouse, France.
Shi
Y
Y
Chauveau
N
N
Morucci
J P
JP
D017097:Electric Impedance; D004566:Electrodes; D004582:Electronics, Medical; D006801:Humans; D008961:Models, Structural; D012984:Software; D014054:Tomography / Q000379:methods*