Fig. 1.

Schematic of the experimental set-up for conducting STL-SWEI of (A) large uniform phantoms submerged in a water tank and (B) smaller phantoms and engineered tissues in tissue culture plates. (C) Schematic of locations of the tracking and pushing beams in one ensemble in the STL-SWEI sequence. ΔX is the lateral distance between the first pushing location at P₁ and the tracking location at T. ΔP is the lateral distance between the two pushing locations at P₁ and P₂.