Imaging of the unstable plaque

Area of Science:

• Cardiovascular Medicine
• Inflammatory Diseases
• Medical Imaging

Background:

• Atherosclerosis is recognized as a systemic inflammatory disorder impacting the entire arterial system.
• Inflammation is integral to all phases of atherosclerosis, from initial fatty streak development to plaque rupture.
• Actively inflamed atherosclerotic plaques correlate with increased symptomatic events and adverse cardiovascular outcomes.

Purpose of the Study:

• To review current research on identifying inflamed atherosclerotic plaques.
• To examine conventional and novel imaging modalities for detecting inflammation in atherosclerotic plaques.
• To highlight the clinical significance of detecting inflamed plaques for patient risk stratification.

Main Methods:

• Review of conventional imaging techniques: ultrasound, MRI, CT, and nuclear medicine.
• Evaluation of novel imaging modalities: OCT, NIRS, thermography, and angioscopy.
• Analysis of the role of inflammation in plaque progression and clinical events.

Main Results:

• Inflamed plaques are associated with a higher likelihood of becoming symptomatic.
• Elevated inflammation indices in patients increase risks for adverse cardiovascular events.
• Increased inflammation is linked to a greater probability of restenosis post-endovascular stenting.

Conclusions:

• The identification of inflamed atherosclerotic plaques is a critical area of ongoing research.
• Various imaging modalities show promise in detecting plaque inflammation.
• Accurate detection of inflamed plaques could improve patient management and cardiovascular event prediction.