Tiny bubbles making large impact on medical ultrasound
imaging

If you were given “ultrasound” in a word association
game, “sound wave” might easily come to mind. But in recent years,
a new term has surfaced: bubbles. Those ephemeral, globular shapes
are proving useful in improving medical imaging, disease detection
and targeted drug delivery. There’s just one glitch: bubbles fizzle
out soon after injection into the bloodstream.