Fig. 4.

Representative results of (a) iMT-treated and (b) non-treated porcine liver specimens. (I) Photographs obtained (left) before and (right) after treatment; thermal images acquired at the (left) 0th and (right) 4th min of the treatment. (II) Structural OCT images and (III) reconstructed Young’s modulus ($E$) maps obtained (left) before and (right) after iMT treatment. White arrows in (I) and (II) indicate the locations of the magnetic thermoseed. (IV) (Left) Post-treatment Masson Trichrome-stained histology and (right) a zoomed-in area. Collagen is stained blue. The ablation zone was delineated with the dashed line. (V) Shear wave propagation captured at different temporal instants were also visualized (full video shown in Visualization 2 ^{(5.8MB, mp4)} at 120 fps).