Magnetic Resonance Imaging and Bioelectrical Impedance Analysis to Assess Visceral and Abdominal Adipose Tissue
Magnetic Resonance Imaging and Bioelectrical Impedance Analysis to Assess Visceral and Abdominal Adipose Tissue
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DOI：
10.1002/oby.22712
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发表时间：
2020-01-03
期刊：
影响因子：
6.9
通讯作者：
Engelke, Klaus
中科院分区：
文献类型：
--
作者：
Chaudry, Oliver;Grimm, Alexandra;Engelke, Klaus
目的比较最先进的生物电阻抗分析(BIA)装置和两点Dixon磁共振成像(MRI)对内脏脂肪组织(VAT)作为健康相关危险因素的定量研究。方法使用3-T磁共振扫描仪和节段式多频BIA装置对63名男性受试者进行测量。MRI生成脂肪分数(FF)图，其中VAT体积、总腹部脂肪组织体积以及内脏和总腹部间隔的脂肪分数(FF)被量化。BIA估算了体脂质量和增值税面积。结果腹腔室和内脏室的决定系数(r(2)=0.75和r(2)=0.78)相似，但斜率相差2倍。与年轻男性相比，老年男性内脏与腹部总面积之比增加。BIA检测不到这种差异。腹部总体积的MRI和BIA测量具有中等相关性(r(2)=0.31-0.56)，而内脏测量相关性较差(r(2)=0.13-0.44)。结论BIA内脏BIA测量结果与MRI测量结果吻合较好，表明BIA内脏脂肪面积评估不能区分年轻和老年受试者的内脏和腹部脂肪组织。
Objective This study aimed to compare a state-of-the-art bioelectrical impedance analysis (BIA) device with two-point Dixon magnetic resonance imaging (MRI) for the quantification of visceral adipose tissue (VAT) as a health-related risk factor. Methods A total of 63 male participants were measured using a 3-T MRI scanner and a segmental, multifrequency BIA device. MRI generated fat fraction (FF) maps, in which VAT volume, total abdominal adipose tissue volume, and FF of visceral and total abdominal compartments were quantified. BIA estimated body fat mass and VAT area. Results Coefficients of determination between abdominal (r(2) = 0.75) and visceral compartments (r(2) = 0.78) were similar for both groups, but slopes differed by a factor of two. The ratio of visceral to total abdominal FF was increased in older men compared with younger men. This difference was not detected with BIA. MRI and BIA measurements of the total abdominal volume correlated moderately (r(2) = 0.31-0.56), and visceral measurements correlated poorly (r(2) = 0.13-0.44). Conclusions Visceral BIA measurements agreed better with MRI measurements of the total abdomen than of the visceral compartment, indicating that BIA visceral fat area assessment cannot differentiate adipose tissue between visceral and abdominal compartments in young and older participants.