Recent evidence demonstrates that vascular inflammation inhibits lipid accumulation in pericoronary adipose tissue (PCAT) and that this can be detected on routine CCTA as an increase in CT attenuation of PCAT surrounding the proximal right coronary artery (RCA) ( 7). Coronary computed tomography angiography (CCTA) is a widely used non-invasive modality for the diagnosis of coronary artery disease (CAD). This has been supported by imaging studies using invasive intracoronary techniques ( 4, 5) and positron emission tomography ( 6). Patients with acute myocardial infarction (MI) have histological evidence of local inflammation both within culprit lesions ( 2) and throughout the entire coronary vascular bed ( 3). Vascular inflammation plays a key role in atherogenesis and atherosclerotic plaque rupture ( 1).
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