Current Density Imaging Using Directly Measured Harmonic 𝐵_𝑧 Data in MREIT

Figure 5

(a) Reconstructed ∇^∼2𝐵^avrg_𝑧=(1/𝑁_𝐸)∑^𝑁𝐸∼_ℓ=1∇²𝐵^ℓ_𝑧 images, (b) reconstructed ∇^∼2𝐵^opt_𝑧=∑^𝑁𝐸_ℓ=1𝜔∇^ℓ∼2𝐵^ℓ_𝑧 images, where 𝜔^ℓ is the weighting factor by solving (17).

(a)

(b)