Imaging of the unstable plaque: how far have we got?

Area of Science:

• Cardiovascular Imaging
• Biomedical Engineering

Background:

• Unstable plaque rupture is a leading cause of death, necessitating early detection.
• Current imaging methods for atherosclerotic plaques have limitations in resolution and invasiveness.
• Atherosclerotic plaques are difficult imaging targets due to size and motion.

Purpose of the Study:

• To review the potential of advanced imaging modalities for identifying vulnerable atherosclerotic plaques.
• To discuss how new techniques can overcome limitations of existing plaque imaging tools.

Main Methods:

• Review of current literature on advanced cardiovascular imaging techniques.
• Discussion of magnetic resonance imaging, nuclear imaging (PET, SPECT), CT, fluorescence imaging, intravascular ultrasound, and optical coherence tomography.
• Analysis of the capabilities of these techniques for plaque characterization.

Main Results:

• New imaging modalities offer improved spatial and temporal resolution compared to conventional methods.
• Advanced techniques provide greater insight into the biological characteristics of plaques.
• These methods have the potential to non-invasively identify vulnerable plaques.

Conclusions:

• Advanced imaging techniques hold significant promise for the early detection of vulnerable plaques.
• These technologies can improve the characterization of atherosclerotic plaques, aiding in risk stratification.
• Further research and clinical integration of these modalities are warranted.