Numerical Simulations of MREIT Conductivity Imaging for Brain Tumor Detection

Figure 6

Reconstructed conductivity images of 5, 7.5, 10, and 15 mm diameter tumor-like anomalies having complex structures. The conductivity value of the angiogenic tumor region was two times higher than normal tissues and that of the necrotic region was 0.01 S/m. Conductivity images were obtained at different numbers of averages 𝑁  (top to bottom) and current amplitudes (left to right). Noise was added to the simulated 𝐵_𝑧 voxel data, based on experimental measurements of 𝐵_𝑧 noise in 3 T MR system.