Coronary spotty calcification, compared with macro calcification, is associated with a higher level of vascular inflammation and plaque vulnerability in patients with stable angina
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View abstract on PubMed
Summary
This summary is machine-generated.Spotty coronary calcifications indicate vulnerable plaques, linked to higher inflammation and lipid-rich features. Advanced calcifications suggest more stable plaques with fewer vulnerable characteristics.
Area Of Science
- Cardiovascular Imaging
- Interventional Cardiology
- Atherosclerosis Research
Background
- Coronary artery calcification patterns may indicate plaque stability or vulnerability.
- Limited data exists on the association between spotty calcification and vascular inflammation.
- Inflammation is a known driver of atherosclerosis and calcification development.
Purpose Of The Study
- To investigate the correlation between spotty coronary calcification and vascular inflammation.
- To assess the relationship between spotty calcification and plaque vulnerability features.
- To compare spotty calcification with advanced calcification in terms of perivascular inflammation and plaque characteristics.
Main Methods
- Patients with stable angina undergoing coronary computed tomography angiography (CCTA) and optical coherence tomography (OCT) were included.
- Lesions were categorized by OCT as having spotty calcification (arc <90°, length <4 mm) or advanced calcification (arc ≥90° or length ≥4 mm).
- Exclusion of non-calcified and mixed calcification plaques.
Main Results
- Spotty calcification was associated with significantly higher perivascular adipose tissue (PCAT) attenuation, indicating increased inflammation.
- Plaques with spotty calcification showed a higher prevalence of lipid-rich plaque and macrophage infiltration compared to advanced calcification.
- A total of 77 patients had spotty calcifications and 72 had advanced calcification.
Conclusions
- Spotty coronary calcification is linked to increased perivascular inflammation.
- Spotty calcification is associated with a higher prevalence of plaque vulnerability features, such as lipid-rich plaques and macrophage presence.
- Findings suggest spotty calcification may represent a more vulnerable stage of atherosclerotic plaque.
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