Sjöström L, Kvist H, Cederblad A, Tylén U
Am J Physiol. 1986 Jun;250(6 Pt 1):E736-45. doi: 10.1152/ajpendo.1986.250.6.E736.
The adipose tissue volumes of 12 women were determined by computed tomography (CT). Body weight ranged from 46 to 129 kg. Nine or twenty-two transsectional scans were examined with respect to the adipose tissue area. The total adipose tissue volume (ATCT22 or ATCT9) was calculated by assuming linear changes in the adipose tissue area between adjacent scans. Body fat (BF) was also calculated from total body potassium (BF40K), from total body water (BFTHO), and from both these determinations (BF40K + THO). Body mass index (BMI) was calculated by dividing body weight (BW) by height2 (H2). ATCT22, ATCT9, and BFK were more closely related to BW and BMI than were BFTHO and BF40K + THO. When ATCT was used as a standard, the optimal index of adiposity based on BW and H was in the range BW/H0.8 to BW/H1.2. From the CT and 40K measurements it was possible to deduce that the potassium content is 62 mmol/kg fat free mass and 73-75 mmol/kg lean body mass. The error of ATCT9 was 0.6%, while that of BF40K was at least three to four times larger. It is concluded that the CT-based AT determination is the most reproducible method so far available. The technique might turn out to be of great value in human energy balance experiments.
通过计算机断层扫描（CT）测定了12名女性的脂肪组织体积。体重范围为46至129千克。对9次或22次横断面扫描的脂肪组织面积进行了检查。通过假设相邻扫描之间脂肪组织面积呈线性变化来计算总脂肪组织体积（ATCT22或ATCT9）。还根据全身钾含量（BF40K）、全身水含量（BFTHO）以及这两种测定结果（BF40K + THO）来计算体脂（BF）。体重指数（BMI）通过体重（BW）除以身高的平方（H2）来计算。与BFTHO和BF40K + THO相比，ATCT22、ATCT9和BFK与BW和BMI的相关性更强。当以ATCT作为标准时，基于BW和H的最佳肥胖指数在BW/H0.8至BW/H1.2范围内。从CT和40K测量结果可以推断，钾含量在无脂肪质量中为62 mmol/kg，在瘦体重中为73 - 75 mmol/kg。ATCT9的误差为0.6%，而BF40K的误差至少大3至4倍。得出的结论是，基于CT的脂肪组织测定是目前可用的最可重复的方法。该技术可能在人体能量平衡实验中具有很大价值。
