Relationship between volumes and areas from single transverse scans of intra-abdominal fat measured by magnetic resonance imaging
Relationship between volumes and areas from single transverse scans of intra-abdominal fat measured by magnetic resonance imaging
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DOI：
10.1038/sj.ijo.0800530
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发表时间：
1997-12-01
影响因子：
4.9
通讯作者：
Lean, MEJ
中科院分区：
文献类型：
--
作者：
Han, TS;Kelly, IE;Lean, MEJ
目的：确定L1和L5椎骨之间腹腔内脂肪的单次横向扫描水平，以最好地预测腹腔内脂肪体积。受试者：16名男性和7名女性非胰岛素依赖型糖尿病患者，年龄44-74岁。结局指标：1.5特斯拉磁场强度的磁共振成像测量的腹腔内脂肪单次扫描的宽度和面积。结果：腹腔内脂肪体积和质量是从20 mm厚的8个横截面横向单次扫描（8名男性9次扫描）的脂肪面积计算出来的。男性和女性的平均体重指数（BMI）分别为27.9（s.d.）。3.0)和31.6（s.d.）4.7)kg/m2，腹腔内脂肪2.3（s.d.）0.5)和2.5（s.d.）0.6)kg.第4次扫描的腹腔内脂肪面积（L1-L5方向）对腹腔内脂肪总量的预测值在男性（r = 0.959，P < 0.001）和女性（r = 0.973，P < 0.001）中均最高。第三次扫描的腹腔内脂肪区域给出了几乎同样好的预测。第三次和第四次扫描对应于L2和L3椎骨。第六次和第七次扫描的腹腔内脂肪区域对应于常用的L4-L5，与腹腔内脂肪的相关性较低。在预测腹腔内脂肪体积方面没有性别差异。第四次扫描的腹腔内脂肪面积解释了93%的变异（SEE = 0.14 kg）：腹腔内脂肪（kg）= 0.0108 x第4次扫描的腹腔内脂肪面积（cm（2））+0.244。结论：在腹腔内脂肪的大型研究中，使用磁共振成像（MR）或计算机断层扫描，在L2和L3椎骨之间的椎间盘处的单个腹内脂肪区域提供了一种更便宜、更快和更安全的方法，具有对腹内脂肪总体积和质量的高度预测。
OBJECTIVE: To determine the level of a single transverse scan of intra-abdominal fat between L1 and L5 vertebrae that best predicts intra-abdominal fat volumes.SUBJECTS: Sixteen male and seven female patients with non-insulin-dependent diabetes mellitus, aged 44-74 y.OUTCOME MEASURES: Volumes and areas from single scans of intra-abdominal fat measured by magnetic resonance imaging with a 1.5 Tesla magnetic field strength.RESULTS: Intra-abdominal fat volumes and masses were calculated from fat areas from eight cross-sectional transverse single scans (nine scans in eight men) of 20 mm thickness. Men and women, respectively, had mean body mass index (BMI) of 27.9 (s.d. 3.0) and 31.6 (s.d. 4.7) kg/m(2), and intra-abdominal fat of 2.3 (s.d. 0.5) and 2.5 (s.d. 0.6) kg. Intra-abdominal fat area of the fourth scan (in the direction of L1 to L5) gave the highest prediction of total intra-abdominal fat both in men (r = 0.959, P < 0.001) and in women (r = 0.973, P < 0.001). The intra-abdominal fat area of the third scan gave almost as good a prediction. These third and fourth scans corresponded to L2 and L3 vertebrae. The intra-abdominal fat areas from the sixth and seventh scans, corresponded to the frequently used L4-L5 and had lower correlations with intra-abdominal fat. There were no gender differences in the prediction of volumes from areas of intra-abdominal fat. Intra-abdominal fat areas of the fourth scan explained 93% of variance (SEE = 0.14 kg) of total intra-abdominal fat for both genders: intra-abdominal fat (kg) = 0.0108 x intra-abdominal fat area of the fourth scan (cm(2)) + 0.244.CONCLUSIONS: In large studies of intra-abdominal fat, using magnetic resonance imaging (MR() or computerised tomography scanning, a single intra-abdominal fat area at the intervertebral disc between L2 and L3 vertebrae offers a cheaper, faster and safer method, with high prediction of total intra-abdominal fat volumes and masses.