采用深部区域阻抗方法检测肺脏血流分布的研究  

A Deep Regional Impedance Method Measuring the Blood Distribution in the Lung

作　　者：任超世[1] 郝冬梅[2] 池学东[1] 崔云莉[1] 

机构地区：[1]中国医学科学院中国协和医科大学生物医学工程研究所,天津300192 [2]首都医科大学生物医学工程系

出　　处：《中国医学科学院学报》1997年第5期356-361,共6页Acta Academiae Medicinae Sinicae

基　　金：国家自然科学基金!38880030

摘　　要：提出一种用于检测肺脏血流分布及其变化情况的新方法——深部区域阻抗测量法。该法采用多电极系统，同步检测人体表层及其与肺脏阻抗的混合信息，借助特定的数据处理方法，消除体表层的影响，从而提取出直接源于肺脏的阻抗信息。提高了肺脏血流信息检测的灵敏度和分辨率，可望发展成为一种具有广泛应用前景的深部阻抗临床检测方法。A new deep regional impedance method to measure the blood distribution in the lung hasbeen developed- Using a multi-electrod system, the method simultaneously detectsimpedance information of chest, and back including lung and the thorax, then extracts theimpedance information directly from lung with a special data processing approach in order toeliminate thorax effect on the measurement. The salt pool experiment and the preliminaryapplication of measuring the blood distribution in the lung have been made. The results showthat the method raises the relative sensitivity and the distinguishability of the blood measure-ment in the lung, and as a new deep regional impedance measurement method, it has a goodprospects of clinical application in the future.

关 键 词：生物电阻抗 血流分布 肺脏 深部区域阻抗 

分 类 号：R322.12[医药卫生—人体解剖和组织胚胎学] R322.35[医药卫生—基础医学]