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Updated: Aug 15, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Multifocal coronary plaque instability
1Cardiology Division, William Beaumont Hospital, Royal Oak, MI 48073, USA.
Insights
Patients with acute coronary syndromes often have multiple complex plaques, indicating plaque instability is a systemic issue affecting the entire cardiovascular system, not just local areas.
Area of Science:
- Cardiovascular Medicine
- Pathophysiology
- Angiography
Background:
- Acute coronary syndromes are frequently associated with multiple complex atherosclerotic plaques.
- Angiography reveals widespread plaque burden in affected patients.
- Necropsy studies correlate multiple complex plaques with plaque rupture and thrombosis.
Purpose of the Study:
- To investigate the systemic nature of atherosclerotic plaque instability.
- To determine if plaque instability in coronary and peripheral vessels occurs concurrently.
- To support the concept of systemic pathophysiological processes driving plaque destabilization.
Main Methods:
- Review of recent clinical observations and necropsy findings.
- Correlation analysis between angiographic findings and post-mortem examinations.
- Comparative assessment of plaque instability in coronary and peripheral vasculature.
Main Results:
- Multiple complex plaques are common in patients with acute coronary syndromes.
- Plaque instability is observed multifocally in both coronary and peripheral arteries.
- Concomitant instability in coronary and peripheral vessels suggests a systemic process.
Conclusions:
- Atherosclerotic plaque instability is not a localized event.
- Systemic pathophysiological processes contribute to widespread plaque destabilization.
- Plaque instability reflects a systemic cardiovascular condition.
Abstract:
Recent observations document that many patients with acute coronary syndromes harbor multiple complex plaques by angiography, which correlate with multiple plaque ruptures and clots at necropsy. Multifocal plaque instability is evident not only in coronary vessels but also in peripheral vessels where peripheral and coronary plaque instability may exist concomitantly. These observations support the concept that plaque instability is not merely a local vascular accident but instead reflects more systemic pathophysiological processes with potential to destabilize atherosclerotic plaques throughout the cardiovascular system.
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