Electromagnetic Modeling of Rat's Brain: Comparison of Models and Solvers

Reliable inverse imaging of source currents in rat's brain requires sufficiently accurate and CPU-time moderate forward models of fields to calibrate inverse solvers. In this paper, we compare different mathematical formulations of electromagnetic problem related to the analysis of brain waves (static, quasi-static, full-wave) and various meshes differing in density, type and geometrical accuracy. Comparison of results indicates the necessary accuracy of the model to calibrate the imaging procedure properly.