CTICasesNapkin Ring Sign in High-Risk Coronary Plaque
Imaging findings
Coronary CT angiography and multiplanar reformats demonstrate a large plaque in the mid LAD characterized by a low-attenuation central necrotic core surrounded by a ring-like rim of higher attenuation (napkin ring sign).
Key takeaways
The 'napkin ring sign' on coronary CTA is a highly specific marker of high-risk plaque (thin-cap fibroatheroma). It represents a large lipid/necrotic core surrounded by a fibrous cap, carrying a high risk of plaque rupture and acute coronary syndrome.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Scimitar Syndrome with Left Tracheal Bronchus and Persistent Left SVCCongenital
- BroncholithiasisInfection
- Left Atrial Calcification post Catheter AblationIatrogenic
- Brown Tumors in Primary HyperparathyroidismMetabolic
- Subcarinal High-Grade SarcomaNeoplastic
- Right Atrial Pseudo-Thrombus from IVC InflowArtifact
- Type A Aortic Dissection presenting as STEMIVascular
- Myocardial Lipomatous Metaplasia and Left Ventricular Pseudo-ThrombusVascular
See all cases from February 7, 2020 →