Imaging the vulnerable carotid artery plaque.

Area of Science:

• Vascular Surgery
• Neurology
• Radiology
• Cardiovascular Imaging

Background:

• Carotid artery surgery selection traditionally relies on symptomatology and degree of stenosis.
• Traditional imaging methods (angiography, duplex ultrasonography, CT angiography) primarily assess luminal stenosis.
• Emerging evidence suggests plaque vulnerability, not just stenosis degree, predicts stroke risk.

Purpose of the Study:

• To review the evolving role of imaging in carotid artery disease.
• To highlight the shift towards identifying vulnerable carotid plaques.
• To discuss advancements in imaging for detecting plaque instability and molecular processes.

Main Methods:

• Review of traditional imaging modalities (angiography, duplex ultrasonography, CT angiography).
• Exploration of new insights in traditional imaging for detecting plaque morphology.
• Introduction of advanced molecular imaging techniques for identifying plaque processes.

Main Results:

• Traditional imaging can reveal morphological characteristics of plaque vulnerability.
• Advanced molecular imaging identifies molecular and cellular processes in vulnerable plaques.
• Imaging advancements offer potential for identifying vulnerable carotid plaques.

Conclusions:

• The focus in carotid artery imaging is increasingly on vulnerable plaque identification.
• New imaging developments enhance the ability to detect plaque instability.
• These advancements hold significant potential for improving patient management and stroke prevention.