Tokunaga K, Matsuzawa Y, Ishikawa K, Tarui S
Int J Obes. 1983;7(5):437-45.
We have developed a new method of measuring fat volume of the human body, using computed tomographic scanning (CT scan) - no ideal or direct method has been available for this calculation. In our study a human body is divided into 11 cylindrical shapes, ie a head, a chest, an abdomen, both sides of forearms, upper arms, thighs and calves to be subjected to the measurement. Eleven computed tomographic sections were examined at the middle point of each segment to obtain the areas of fat tissue. Volume of each cylindrical segment was calculated by multiplying a cross-sectional area of fat tissue by the height of each part. Then the volume of fat tissue of the whole body was determined by the sum of fat tissue volume of eleven parts (as above). By this method, nine massive obese subjects with 147-188 percent of ideal body weight were found to possess fat tissue occupying 30-63 percent of total body volume. We also found female obese patients had a significantly higher percentage of fat tissue than male obese patients when they had same degree of obesity. In addition to the study above, we examined 18 control and 19 obese subjects and measured subcutaneous fat, muscle plus bone and visceral fat separately by CT scan at the umbilicus level. In obese subjects, increased abdominal fatty mass was mainly due to the accumulation of subcutaneous fat, although substantial increase of visceral fatty mass was demonstrated in a few cases.
我们开发了一种利用计算机断层扫描（CT扫描）测量人体脂肪体积的新方法——此前尚无理想或直接的方法用于此计算。在我们的研究中，将人体分为11个圆柱形部分，即头部、胸部、腹部、双侧前臂、上臂、大腿和小腿，然后对这些部分进行测量。在每个部分的中点检查11个计算机断层扫描切片，以获取脂肪组织的面积。每个圆柱形部分的体积通过将脂肪组织的横截面积乘以每个部分的高度来计算。然后，通过上述11个部分的脂肪组织体积之和来确定全身脂肪组织的体积。通过这种方法，发现9名重度肥胖受试者的体重为理想体重的147%至188%，其脂肪组织占总体积的30%至63%。我们还发现，在肥胖程度相同的情况下，女性肥胖患者的脂肪组织百分比明显高于男性肥胖患者。除上述研究外，我们还检查了18名对照受试者和19名肥胖受试者，并通过CT扫描在脐水平分别测量了皮下脂肪、肌肉加骨骼以及内脏脂肪。在肥胖受试者中，腹部脂肪量增加主要是由于皮下脂肪堆积，不过在少数情况下也显示出内脏脂肪量大幅增加。
