<p>(A) Photograph of a phantom to test the spatial resolution. Two square gels with 5% salinity were immersed in mineral oil. The gap between the two gel phantoms is <i>d</i>. (B), (C) and (D) are the reconstructed MAT-MI images of phantom in (A) with a gap <i>d</i> of 3 mm, 2 mm, 1 mm, respectively. (E), (F) and (G) are the profiles of the reconstructed intensities along the dash line (Y = 3.6 mm) in (B), (C) and (D), respectively.</p
