Improving the Performance of Phase-Change Perfluorocarbon Droplets for Medical Ultrasonography: Current Progress, Challenges, and Prospects
Figure 14
Overlays of contrast-specific intensity (green scale) and traditional B-mode (grey scale) ultrasound scans within the region of interest (white dotted line). When no droplets are present (top row), very little contrast is present before (left) and after (right) the vaporization pulse sequence. When a bolus of OFP droplets is injected, no significant increase in contrast is observed before the activation sequence (bottom row, left), but once the activation sequence is delivered a high level of contrast is visible in the region of the kidney (bottom row, right)—indicating conversion of the droplets to form highly echogenic microbubbles. Unpublished data.
