A mixed strategy for efficient acousto-electric tomography based on complete electrode model
Résumé
In acousto-electric tomography (AET), the electrical conductivity distribution
in a domain of interest (DOI) is constructed from power density data measured
under the disturbance of focused ultrasonic wave. However, the power density
cannot be measured directly. One needs to reconstruct it from the potential on
the full boundary of DOI, which is not practical to measure. A new reconstruction
strategy is proposed herein. The boundary potential is firstly reconstructed with
electrical impedance tomography algorithm based on a complete electrode model
(CEM). The power density is then reconstructed from the boundary potential for
reconstructing the power density with an iterative algorithm based on continuum
model.