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Zhang QH, Li Y, Xie LH, Ren X, Zhao Y, Wang N, Chen LH, Ju Y, Liu YJ, Xie LZ, Lin LJ, Liu AL. Association Between Perivascular Adipose Tissue Density and Atherosclerosis in the Descending Thoracic Aorta. Angiology 2023; 74:216-226. [PMID: 35500088 DOI: 10.1177/00033197221098894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Radiodensity measured by computed tomography (CT) in Hounsfield Units (HU) is emerging as a clinical tool for detecting perivascular adipose tissue (PVAT) inflammation. In the present study, we hypothesized that PVAT radiodensity might predict the risk of descending thoracic aorta atherosclerosis. A total of 73 subjects who underwent CT angiography to investigate aortic disease were retrospectively analyzed. PVAT radiodensity, aortic complex plaque (ACP), mean plaque-burden score (MPBS), and plaque density were measured, and the association between them was analyzed. Perivascular adipose tissue radiodensity (HU) in patients with different aortic plaques grades (grade 1, 2, 3, and 4) were -93.71 ± 2.50, -93.63 ± 3.93, -90.24 ± 4.49, and -89.90 ± 5.18, respectively, and the difference was significant (P = .010). In the regression analysis, PVAT radiodensity was an independent predictor of ACP, with an OR of 1.263. In the linear analysis, PVAT radiodensity was an independent predictor of MPBS, with a β-coefficient of .073. In the univariate analysis, only the PVAT radiodensity was significantly associated with plaque density, with a β-coefficient of -1.666. In conclusion, PVAT density was independently related to descending thoracic aorta atherosclerosis.
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Affiliation(s)
- Qin-He Zhang
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ye Li
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lu-Han Xie
- Department of Pathology and Forensics, 36674Dalian Medical University, Dalian, China
| | - Xue Ren
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ying Zhao
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Nan Wang
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Li-Hua Chen
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ye Ju
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yi-Jun Liu
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Li-Zhi Xie
- MR Research, 33112GE Healthcare, Beijing, China
| | - Liang-Jie Lin
- 244810Clinical and Technical Support, Philips Healthcare, Beijing, China
| | - Ai-Lian Liu
- Department of Radiology, 74710the First Affiliated Hospital of Dalian Medical University, Dalian, China
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Identification Markers of Carotid Vulnerable Plaques: An Update. Biomolecules 2022; 12:biom12091192. [PMID: 36139031 PMCID: PMC9496377 DOI: 10.3390/biom12091192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 12/02/2022] Open
Abstract
Vulnerable plaques have been a hot topic in the field of stroke and carotid atherosclerosis. Currently, risk stratification and intervention of carotid plaques are guided by the degree of luminal stenosis. Recently, it has been recognized that the vulnerability of plaques may contribute to the risk of stroke. Some classical interventions, such as carotid endarterectomy, significantly reduce the risk of stroke in symptomatic patients with severe carotid stenosis, while for asymptomatic patients, clinically silent plaques with rupture tendency may expose them to the risk of cerebrovascular events. Early identification of vulnerable plaques contributes to lowering the risk of cerebrovascular events. Previously, the identification of vulnerable plaques was commonly based on imaging technologies at the macroscopic level. Recently, some microscopic molecules pertaining to vulnerable plaques have emerged, and could be potential biomarkers or therapeutic targets. This review aimed to update the previous summarization of vulnerable plaques and identify vulnerable plaques at the microscopic and macroscopic levels.
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