Molecular imaging agents for ultrasound.

Area of Science:

• Medical Imaging
• Nanotechnology
• Biomedical Engineering

Background:

• Ultrasound (US) imaging is a safe, sensitive, and affordable clinical tool.
• Echogenic contrast agents (UCAs) enhance US signals and enable molecular imaging.
• Traditional UCAs are limited to intravascular applications due to their size.

Purpose of the Study:

• To review recent clinical applications of molecular US imaging.
• To summarize novel nanoparticle platforms for developing new UCAs (nUCAs).
• To highlight technologies impacting the future of US imaging.

Main Methods:

• Mini-review of recent scientific literature.
• Focus on nanoparticle platforms for nUCAs.
• Analysis of clinical applications of molecular US imaging.

Main Results:

• Nanoparticle platforms are enabling the development of nUCAs.
• These nUCAs are small enough to exit the vascular space.
• This allows for molecular US imaging of extravascular targets.

Conclusions:

• Nanoparticle-based UCAs represent a significant advancement in molecular US imaging.
• The development of nUCAs will expand the diagnostic capabilities of US.
• These technologies are poised to significantly impact the evolution of US imaging.