Correlation between visceral adipose tissue and colorectal adenoma assessed by quantitative CT
Objective To evaluate abdominal visceral fat(VAT)and subcutaneous fat(SAT)by quantitative CT,and to explore the correlation between abdominal fat distribution and colorectal adenoma.Methods A total of 100 patients with colorectal adenoma diagnosed by pathology in Foshan First People's Hospital from January 2022 to July 2023 were retrospectively collected as the adenoma group.The adenomas were divided into early adenomas(n=36)and advanced adenomas(n=64).Then,158 healthy people without adenoma in our hospital during the same period were collected as the normal group.Basic clinical data were collected,and quantitative CT was used to measure the VAT and SAT areas at the L2/3 intervertebral space level in the abdomen.The fat distribution of the adenoma group was compared with the normal group and the adenoma groups of different pathological types.Logistic regression analysis was used to evaluate the correlation between VAT,SAT and the risk of colorectal adenoma.Results The VAT area of the adenoma group was higher than that of the normal group(P=0.015),while the difference in SAT was not statistically significant(P＞0.05),the VAT area of the advanced adenoma group was higher than that of the early adenoma(P=0.021).Logistic regression analysis showed.Age,hyperlipidemia,BMI,VAT and VAT obesity were independent risk factors for colorectal adenoma(OR=2.044,1.325,1.147,1.895,2.185,P＜0.05).Conclusion VAT is associated with the incidence of colorectal adenoma.The higher VAT,the higher risk of adenoma and more likely it is to develop into advanced adenoma.However,SAT is not necessarily associated with the occurrence of adenoma.
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