ASSESSMENT OF ABDOMINAL FAT-CONTENT BY COMPUTED-TOMOGRAPHY
ASSESSMENT OF ABDOMINAL FAT-CONTENT BY COMPUTED-TOMOGRAPHY
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DOI：
10.1093/ajcn/36.1.172
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发表时间：
1982-01-01
影响因子：
7.1
通讯作者：
SILBERT, JE
中科院分区：
文献类型：
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作者：
BORKAN, GA;GERZOF, SG;SILBERT, JE
计算机断层扫描（CT）产生薄的横截面射线照片，这可能是非常有用的身体组成研究。腹部的CT图像允许计算机化测量总脂肪面积，并且还能够区分皮下脂肪和腹内脂肪。目前的调查研究是否一个单一的腹部CT扫描提供了一个准确的指示整体腹部肥胖。8例患者7次连续腹部扫描的测量结果显示，无论选择哪个腹部水平，腹部总面积、总脂肪面积、皮下和腹内脂肪面积的排名都相对一致。单次扫描和所有扫描的平均值之间的相关性为0.89-0.99，表明单次CT图像包含与一系列扫描相同的肥胖信息。显然，未来的身体成分CT扫描可以通过在不同的解剖部位进行单次扫描来限制辐射暴露。如果只能在1个部位进行单次扫描，则脐的水平可能是最有用的，因为它含有体内最大百分比的脂肪，并且最适合区分腹内脂肪和皮下脂肪[在肥胖患者中]。
Computed tomography (CT) produces thin cross-sectional radiographs that may be very useful in body composition research. CT images of the abdomen allow computerized measurement of total fat area and also enable the differentiation of subcutaneous fat from intraabdominal fat. The present investigation examines whether a single CT scan of the abdomen provides an accurate indication of overall abdominal adiposity. Graphs of measurements from seven sequential scans of the abdomen in 8 patients showed that rankings of total abdominal area, total fat area, subcutaneous and intraabdominal fat area are relatively consistent no matter which abdominal level is chosen. Correlations of 0.89-0.99 between single scans and the average values for all scans show that a single CT image contains the same information on adiposity as a series of scans. Apparently, future CT scans of body composition can limit radiation exposure by using single scans at different anatomical sites. If only a single scan at 1 site can be obtained, the level of the umbilicus may be the most useful, because it contains the largest percentage of fat in the body and best allows differentiation of intraabdominal from subcutaneous fat [in obese patients].