Vulnerable plaque imaging

Area of Science:

• Cardiovascular Research
• Medical Imaging
• Translational Medicine

Background:

• The concept of vulnerable plaque is established in clinical and basic research.
• The focus has shifted from hemodynamic effects (lumenal stenosis) to plaque structure and composition.
• Inflammatory elements and endothelial denudation contribute to thrombus formation.

Purpose of the Study:

• To highlight the evolving understanding of vulnerable plaque.
• To emphasize the need for improved methods for vulnerable plaque detection and characterization.
• To explore the potential of nuclear medicine techniques for cardiovascular assessment.

Main Methods:

• Review of current clinical and basic research on vulnerable plaque.
• Comparison of existing imaging modalities (MR, CT, ultrasound) with emerging nuclear medicine techniques.
• Discussion of the limitations of current methods in assessing plaque vulnerability.

Main Results:

• Current imaging provides data on single lesions but lacks comprehensive functional assessment.
• Vulnerable plaque assessment requires evaluation of plaque composition and inflammatory markers.
• Nuclear medicine techniques show promise for functional assessment of the entire cardiovascular system.

Conclusions:

• The paradigm for assessing cardiovascular risk has shifted towards understanding plaque vulnerability.
• Development and optimization of detection and characterization methods are crucial.
• Nuclear medicine offers a promising future for comprehensive cardiovascular functional assessment.