躯干细分电阻抗人体成分分析方法  

Analysis of body composition with trunk subdivision bioelectrical impedance

作　　者：沙洪[1] 赵舒[1] 邓娟[1] 王妍[1] 任超世[1] 

机构地区：[1]中国医学科学院,北京协和医学院生物医学工程研究所,天津300192

出　　处：《中国医学装备》2009年第5期18-21,共4页China Medical Equipment

基　　金：国家科技支撑计划项目(2006915104031393);天津市自然科学基金项目(08JCYBJC14100)

摘　　要：针对全身人体成分阻抗测量方法(BIA)和传统分段阻抗测量法存在的问题,在分析人体胸部和腹部对脂肪测量不同影响的基础上,提出了躯干细分BIA模型,研制了基于躯干细分模型的BIA测量系统,进行了新方法的验证和与多层螺旋CT法腹部脂肪测量的对比实验。两种方法对照试验的结果显示出很好的相关性。验证了躯干细分BIA方法的可行性和有效性。躯干细分BIA以人体躯干部分为检测重点,可有效区分躯干上段和下段的阻抗值,分别获取胸部和腹部脂肪含量,克服了全身BIA和传统五段法的缺陷,是对人体成分分析方法的有效改进,将为人体成分研究和临床应用提供更为有效的检测手段。Taking account of the deficiency of whole body bioelectrical impedance analysis （BIA） and the traditional segment measurement （SBIA） in body composition measurement, based on the analysis of different influences between thorax and abdomen on the fattiness measurement, a trunk subdivision BIA model was developed and then a experimental measurement system based on the model was designed. The comparative experiments of the abdominal fattiness measurement by both the new method and multi-slicespiral computer tomography （MSCT） were carried out. The result of the comparative experiments showed that two methods had excellent correlation and the feasibility and validity of the trunk subdivision BIA were validate. The trunk subdivision BIA, focusing on trunk detection, is able to distinguish the impedance of upper segment （thorax） and the impedance of lower segment （abdomen）, to obtain the fat content of thorax and abdomen respectively. The novel method overcomes limitation of both whole body BIA and the traditional SBIA methods. It is a good improvement of body composition analysis and is going to provide an effective measurement method for basic research and clinical application of body composition analysis.

关 键 词：人体成分 脂肪 生物电阻抗 躯干细分 多层螺旋CT 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]