Department of Internal Medicine, Division of Metabolism and Endocrinology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan.
Department of Internal Medicine, Division of Metabolism and Endocrinology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan.
Obes Res Clin Pract. 2010 Apr-Jun;4(2):e83-e162. doi: 10.1016/j.orcp.2009.10.001.
The fat area at the umbilical region on CT scans is widely used to identify visceral obesity. However, whether it precisely represents the abdominal visceral fat volume is uncertain, because of technical difficulty in evaluating whole-abdominal visceral fat volume. In this study, we compared the whole-abdominal visceral fat and subcutaneous fat volumes with the visceral fat area at the umbilical region and anthropometric indices.
The study population consisted of 131 Japanese diabetic and non-diabetic subjects (72 males and 59 females) who underwent anthropometric measurements (height, weight, waist circumference, and hip circumference) and CT scanning from the top of the liver to the pelvic floor (about 700 slices) to analyze the whole-abdominal and umbilical contents of visceral and subcutaneous fat.
The visceral fat volume of the male group was 1.3-fold higher than that of the female group, while the subcutaneous fat volume of the female group was 1.3-fold higher than that of the male group. The visceral fat area at the umbilical region was strongly correlated with visceral fat volume (r = 0.921 in males and 0.931 in females). Both visceral and subcutaneous fat volumes were strongly correlated with the waist circumference (r = 0.768 and 0.809 in males and 0.744 and 0.803 in females), but not with the BMI or waist/hip ratio.
The visceral fat area at the umbilical region is an optimal indicator for whole-abdominal visceral fat volume, and the waist circumference is the anthropometric index that reflects visceral obesity more closely than BMI or the waist/hip ratio.
CT 扫描中脐区的脂肪面积被广泛用于识别内脏肥胖。然而，由于评估全腹内脏脂肪体积存在技术困难，因此它是否能准确代表腹部内脏脂肪体积尚不确定。在这项研究中，我们比较了全腹内脏脂肪和皮下脂肪体积与脐区内脏脂肪面积和人体测量指标。
研究人群包括 131 名日本糖尿病和非糖尿病患者（72 名男性和 59 名女性），他们接受了人体测量（身高、体重、腰围和臀围）和从肝顶到骨盆底的 CT 扫描（约 700 层），以分析全腹和脐区的内脏和皮下脂肪。
男性组的内脏脂肪体积是女性组的 1.3 倍，而女性组的皮下脂肪体积是男性组的 1.3 倍。脐区的内脏脂肪面积与内脏脂肪体积呈强相关性（男性 r = 0.921，女性 r = 0.931）。内脏和皮下脂肪体积均与腰围呈强相关性（男性 r = 0.768 和 0.809，女性 r = 0.744 和 0.803），但与 BMI 或腰围/臀围比无关。
脐区的内脏脂肪面积是全腹内脏脂肪体积的最佳指标，腰围是比 BMI 或腰围/臀围比更能反映内脏肥胖的人体测量指标。
