ArticleFrontiers in cardiovascular medicine2025
Development of a new threshold for pericoronary fat attenuation based on 40 keV virtual monoenergetic images from dual-energy spectral CT.
Article in Frontiers in cardiovascular medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Association of Relative Pericoronary Adipose Tissue Attenuation with Coronary Artery Calcification Severity.Medicina (Kaunas, Lithuania) · 2026Article
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4 authors.
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Abstract
Objective: To investigate the distinct properties of pericoronary adipose tissue (PCAT) on 40 keV virtual monoenergetic images (VMI) from spectral detector CT (SDCT) and compare them with conventional mixed-energy images (MEI), aiming to establish a novel threshold for the fat attenuation index (FAI) at this energy level. Methods: We retrospectively analyzed 60 patients who underwent coronary angiography with SDCT. The PCAT around the right coronary artery was selected for FAI assessment. CT attenuation values (minimum, mean, median, maximum), value distribution, background noise, and signal-to-noise ratio (SNR) were compared between 40 keV VMI and MEI within the same volume of interest. Results: Compared to MEI, 40 keV VMI demonstrated significantly lower minimum, mean, and median CT attenuation values (all Conclusion: The attenuation properties of PCAT are fundamentally different on 40 keV VMI compared to conventional MEI. Our findings underscore the critical need for energy-specific interpretation of FAI in spectral CT and provide a foundational step towards its clinical application by proposing a new threshold.
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