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- W4380794080 abstract "Introduction: Inflammation has been considered to promote atheroma instability. Coronary computed tomography angiography (CCTA) visualizes pericoronary adipose tissue (PCAT) attenuation, which reflects coronary artery inflammation. While PCAT attenuation has been reported to predict future coronary events, phenotypic features of coronary atheroma exhibiting high PCAT attenuation remains to be fully elucidated yet. Objective: To characterize coronary atheroma with a greater vascular inflammation. Methods: We retrospectively analyzed culprit lesions in 69 CAD patients receiving PCI from the REASSURE-NIRS registry (NCT04864171). Culprit lesions were evaluated by both CCTA and near-infrared spectroscopy/intravascular ultrasound (NIRS/IVUS) imaging prior to PCI. PCAT attenuation at proximal RCA (PCAT RCA ) and NIRS/IVUS-derived plaque measures were compared in patients with PCAT RCA attenuation ≥ and < -78.3 HU (median). Results: Culprit lesions with PCAT RCA attenuation ≥ -78.3HU exhibited a greater frequency of maxLCBI 4mm ≥400 (66 vs. 26%, p<0.01), plaque burden ≥70% (94 vs. 74%, p=0.02) and spotty calcification (49 vs. 6%, p<0.01). whereas positive remodeling (63 vs. 41%, p=0.07) did not differ between two groups. On multivariate analysis, maxLCBI 4mm >400 (OR=4.07; 95%CI=1.12-14.74, p=0.03), plaque burden ≥70% (OR=7.87; 95%CI=1.01-61.26, p=0.04), and spotty calcification (OR=14.33; 95%CI=2.37-86.73, p<0.01) independently predicted high PCAT RCA attenuation. Of note, while the presence of only one plaque feature did not necessarily elevate PCAT RCA attenuation (p=0.22), lesions harbouring two or more features were significantly associated with higher PCAT RCA attenuation (Figure). Conclusion: More vulnerable plaque phenotypes were observed in patients with PCAT RCA attenuation. Our findings suggest PCAT RCA attenuation as the presence of profound disease substrate, which potentially benefits from anti-inflammatory agents." @default.
- W4380794080 created "2023-06-16" @default.
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- W4380794080 date "2022-11-08" @default.
- W4380794080 modified "2023-10-18" @default.
- W4380794080 title "Abstract 11785: Phenotype Features of Coronary Atheroma in Association With an Elevated Activity of Pericoronary Adipose Tissue (Insights From Computed Coronary Angiography and Near-Infrared Spectroscopy Analysis)" @default.
- W4380794080 doi "https://doi.org/10.1161/circ.146.suppl_1.11785" @default.
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