TITLE:
A Study on the Correlation between Abdominal Subcutaneous Fat Area and Aortic Dissection Based on Quantitative CT
AUTHORS:
Xuecheng Liu, Juan Wang
KEYWORDS:
Quantitative CT, Aortic Dissection, Subcutaneous Fat, Visceral Fat, Risk Factors
JOURNAL NAME:
Open Access Library Journal,
Vol.13 No.5,
May
22,
2026
ABSTRACT: Objective: To explore the correlation between abdominal Visceral Fat (VAT) area, Subcutaneous Fat (SAT) area and Aortic Dissection (AD) based on Quantitative CT (QCT). Methods: A total of 99 patients with AD diagnosed by CT angiography from January 2019 to April 2023 were retrospectively collected as the dissection group. The subjects were frequency-matched by age and gender. From the patients who underwent whole abdominal CT plain scan for non-specific abdominal pain, routine physical examination or other non-cardiovascular emergencies during the same period, 85 subjects without AD were selected as the control group. Their absence of aortic disease was confirmed by reviewing the imaging data and medical records. Collect the general clinical data of the two groups, and measure the liver fat fraction (Fat%-QCT) and the area of abdominal VAT and SAT at the L2/3 intervertebral space level based on QCT. Conduct a multivariate Logistic regression analysis to identify the independent factors associated with the occurrence of AD. Results: Univariate analysis showed that the proportions of smoking history, drinking history, and hypertension in the dissection group were significantly higher than those in the control group (all P Conclusion: An increase in abdominal subcutaneous fat area is independently associated with the occurrence of aortic dissection and is a new independent risk indicator in addition to traditional risk factors (smoking, drinking, and hypertension). Controlling body weight and reducing abdominal subcutaneous fat accumulation may help reduce the risk of AD.