腰椎骨髓脂肪与腹部脂肪相关性的前瞻性研究 |
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引用本文: | 张晓东,赵银霞,赵文吉,张灵艳,严杰文,郝帅,卢雄光,赵静,李绍林. 腰椎骨髓脂肪与腹部脂肪相关性的前瞻性研究[J]. 南方医科大学学报, 2016, 36(2): 286-289. DOI: 10.3969/j.issn.1673-4254.2016.02.26 |
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作者姓名: | 张晓东 赵银霞 赵文吉 张灵艳 严杰文 郝帅 卢雄光 赵静 李绍林 |
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作者单位: | 南方医科大学第三附属医院//广东省骨科研究院,医学影像科,广东 广州 510630 |
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摘 要: | 目的探讨腰椎骨髓脂肪与腹部脂肪的相关性。方法共68人(男32人,女36人,年龄21~74岁,中位年龄49.5岁)纳入前 瞻性研究。1.5T MR采用单体素点分辨波谱法(PRESS)对L3椎体进行波谱采集,计算脂肪比(FF%);同时行腰椎64排CT检 查,用定量CT(QCT)分析软件测量L3相应层面腹部皮下脂肪(SAT)与内脏脂肪(VAT)。男、女按年龄各分为两组(≥50岁和< 50 岁),用SPSS 19.0 软件进行统计学分析。结果男性BMI、FF%、VAT及SAT≥50 岁组和<50 岁组比较均无显著性差异(P> 0.05),FF%与BMI、VAT及SAT均无明显相关性(r分别为-0.109、0.034、-0.066,P>0.05)。女性BMI、FF%、VAT及SAT≥50岁组 和<50岁组比较均有显著性差异(P<0.05);女性≥50岁组,FF%与VAT呈明显正相关(r为0.499,P<0.05),FF%与SAT无明显相 关性(r为0.221,P>0.05);女性<50岁组,FF%与VAT或SAT均无明显相关性(r分别为-0.076、-0.067,P>0.05)。结论中老年女 性(≥50岁)腰椎骨髓脂肪含量与VAT关系密切,男性与年轻女性(<50岁女性)腰椎骨髓脂肪含量与腹部脂肪无关。
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关 键 词: | 骨髓脂肪 磁共振波谱 内脏脂肪 定量CT |
Correlation between vertebral bone marrow fat and abdomen fat: a prospective study |
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Abstract: | Objective To investigate the correlation between the lumbar bone marrow fat and abdominal fat. Methods A total of 68 individuals (32 men and 36 women, aged 21-74 years with a median of 49.5 years) were included in this study. All the subjects underwent spectroscopic examination of the third lumber vertebra with the single voxel method on a 1.5T MR scanner to measure the fat fraction (FF%). Quantitative CT was also performed for measurement of the abdomen subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT). The measurements were compared between subjects aged ≥50 years and those below 50 years, respectively,in male or female subjects. Results In male subjects, BMI, FF%, VAT or SAT showed no significant differences between the two age groups (P>0.05), and FF% was not correlated with BMI, VAT or SAT (r=0.109, 0.034, 0.066, respectively; P>0.05). In the female subjects, BMI, FF%, VAT and SAT differed significantly between the two age groups (P< 0.05), and in ≥50 years group, FF% showed a positive correlation with VAT (r=0.499, P<0.05) but was not correlated with SAT (r=0.221, P>0.05); in<50 years group, FF% was not correlated with VAT or SAT (r=0.076, -0.067, respectively; P>0.05). Conclusion FF% is positively correlated with VAT in female subjects aged beyond 50 years, but is not correlated with VAT or SAT in male subjects or in younger female subjects.
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Keywords: | bone marrow fat magnetic resonance spectroscopy visceralfat quantitative CT |
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