用能谱CT的方法评估成年人腹部脂肪分布特点及其影响因素分析

于冬妮; 邹明珠; 李淼; 宋焱; 潘琦; 郭立新

Abstract

于冬妮,邹明珠,李淼,宋焱,潘琦,郭立新.用能谱CT的方法评估成年人腹部脂肪分布特点及其影响因素分析[J].Chinese journal of Epidemiology,2021,42(5):909-913

用能谱CT的方法评估成年人腹部脂肪分布特点及其影响因素分析

Using energy spectrum CT to evaluate the characteristics of adult abdominal fat distribution and analyze its influencing factors

Received:February 05, 2021

DOI：10.3760/cma.j.cn112338-20210205-00101

KeyWord: 能谱CT 肥胖症腹部脂肪分布肌肉内脂肪

English Key Word: Energy spectrum CT Obesity Abdominal fat distribution Intramuscular fat

FundProject:北京医院院级课题（BJ-2019-162）

Author Name	Affiliation	E-mail
Yu Dongni	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China Graduate School of Peking Union Medical College, Beijing 100005, China
Zou Mingzhu	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
Li Miao	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
Song Yan	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
Pan Qi	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
Guo Lixin	Department of Endocrinology/Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China Graduate School of Peking Union Medical College, Beijing 100005, China	glx1218@163.com

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Abstract:

目的用能谱CT的方法评估成年人腹部脂肪分布的特点，并分析其影响因素。方法对105例成年人进行身高、体重、腰围、臀围的测量，并用能谱CT扫描评估腹部脂肪分布特点。结果与非肥胖者相比，肥胖症患者的腹部皮下脂肪、腹腔和肝脏异位脂肪含量均较高（P<0.05），而肌肉内脂肪（IMAT）含量并不随BMI而增加；中年组的腰围、腰臀比、腹腔面积和IMAT均较青年组高，且中年组的肌肉含量较青年组低，两组间的差异有统计学意义（P<0.05）；男性的腹腔面积和肌肉含量高于女性，而女性的皮下脂肪面积、腹部皮下脂肪厚度和竖脊肌内脂肪含量高于男性，两组间差异有统计学意义（P<0.05）。结论不同BMI、年龄和性别的受试者的腹部脂肪分布的特点不同，因此，应重视对肥胖症患者的异位脂肪分布的个体性评估。能谱CT可作为异位脂肪评估的重要手段，为制定个体化的减重方案提供依据。

English Abstract:

Objective To evaluate the characteristics of adult abdominal fat distribution and analyze its influencing factors by energy spectrum CT scan.Methods The body height, weight, waist circumference, and hip circumference of 105 adults were measured, and the characteristics of abdominal fat distribution were evaluated by energy spectrum CT scan. Results Compared with non-obese individuals, the contents of abdominal subcutaneous fat, abdominal cavity and liver ectopic fat were higher in obese patients (P<0.05), and the intramuscular fat (IMAT) content did not increase with the increase of BMI. In middle-aged group, the waist circumference, waist-to-hip ratio (WHR) abdominal cavity area and IMAT content were higher than those in the youth group, and the muscle content of the middle-aged group was lower than that of the youth group, the difference between the two groups was significant (P<0.05); the male group had higher abdominal cavity area and muscle content than the female group, while the female group had higher the subcutaneous fat area, abdominal subcutaneous fat thickness and erector spinae fat content than the male group, the differences were significant (P<0.05). Conclusions The characteristics of abdominal fat distribution of subjects with different BMI, age and gender were different. Therefore, we should pay attention to the individual assessment of ectopic fat distribution in obese patients. Energy spectrum CT can be used as an important approach for the assessment of ectopic fat to provide evidence for developing individualized weight loss programs.

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