Coronary angioscopy: current topics and future direction

Area of Science:

• Cardiovascular Medicine
• Medical Imaging
• Interventional Cardiology

Background:

• Acute coronary syndrome (ACS) is primarily caused by vulnerable plaque rupture and thrombus formation.
• Intracoronary angioscopy offers direct visualization of coronary artery lumen and plaque morphology.
• Plaque color and morphology observed via angioscopy are indicators of plaque stability.

Purpose of the Study:

• To evaluate the role of intracoronary angioscopy in assessing vulnerable coronary plaques.
• To determine the diagnostic accuracy of angioscopy in identifying thrombus and neointima post-stenting.
• To explore the potential of angioscopy in guiding patient management after coronary interventions.

Main Methods:

• Intracoronary angioscopy for direct visualization of coronary artery lumen.
• Assessment of plaque color (e.g., yellow plaque) and morphology.
• Evaluation of thrombus detection and neointima coverage after stent implantation.

Main Results:

• Yellow plaque observed via angioscopy correlates with thin-cap fibroatheroma, higher disruption risk, and thrombus formation.
• Angioscopy demonstrates high sensitivity and specificity for detecting intraluminal thrombus.
• Serial angioscopic assessment reveals varying neointima coverage patterns across different stent systems.

Conclusions:

• Intracoronary angioscopy is a valuable tool for identifying vulnerable plaques and guiding interventions.
• Angioscopy excels in thrombus detection and provides insights into post-stent healing.
• Serial angioscopic evaluation holds promise for optimizing patient management following coronary stenting.