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|本期目录/Table of Contents|

在体动物组织复阻抗频谱的测量及初步结果(PDF)

《心脏杂志》[ISSN:1009-7236/CN:61-1268/R]

期数:
2003年第3期
页码:
230-232
栏目:
实验研究
出版日期:
2003-05-01

文章信息/Info

Title:
In vitro impedance spectrum measurement and preliminary results
作者:
付峰1; 臧益民1; 董秀珍1; 王跃民2; 尤富生1; 刘锐岗1; 史学涛1
第四军医大学:1.生物医学工程系,2.基础部生理学教研室,陕西 西安710032
Author(s):
FU Feng1; ZANGYi-min2; DONGXiu-zhen1; WANGYue min 2;  YOU Fu-sheng1; LIU Ruigang1; SHIXue-tao1
1.Department of Biomedical Engineering,2.Department of Physiology,Fourth Military Medical University,Xi'an,Shaanxi710032,China
关键词:
电阻抗频谱; 测量; 在体
Keywords:
impedance spectrum; measurement; in vivo
分类号:
E318.6
DOI:
-
文献标识码:
A
摘要:
目的:探索测量在体动物组织复阻抗频谱的方法。方法:系统采用频率响应测量原理和四电极法。结果:实现了生物组织复阻抗频谱的测量系统,设计了用于在体组织测量的电极;利用这一系统进行了部分在体动物组织复阻抗频谱的测量。初步测量结果表明:在体动物组织在缺血前后,阻抗频谱变化显著。结论:动物组织复阻抗频谱在供血正常状态及缺血后有显著变化,且缺血前后的变化与随离体时间的变化性质完全不同。
Abstract:
AIM:To seek for a method to measure the impedance spectrum in vivo.METHODS:The system we designed was based on four-electrode method and Frequency Response Analyze method.RESULTS:A system was implemented to measure impedance spectrum in vivo,and relevant in vivo electrode was designed.Measurement were carried out on tissue of canine and rabbit. CONCLUSION: The impedance spectrum of animal varied significantly after ischemia, and this kind of variation was different fromthevariation with time apart from the body.

参考文献/References

[1]McAdams ET,Jossinet J, Tissue impedance:a historical overview [J]. Physiol Meas,1995,16(Suppl3A):A1-A8

[2]付峰,臧益民,董秀珍,等.生物组织复电阻抗频谱特性测量用电阻抗断层成像系统的研究[J].心脏杂志,2000,12(4):298-300.

[3] Lorenzo A, Andreoli A, Matthie J, et al. Predicting body cell mass with bioimpedance by using theoretical methods: a technological review [J]. J Appl Physiol, 1997, 82:1542-1558

.[4]Goovaerts HG,Faes TJC,Roo GWV.Extra-cellular volume estimation by electrical impedancephase measurement or curve fitting:a comparative study [J].Physiol Meas,1998,19(4): 517-522

[5]Bolton MP,Ward LC,Khan A,et al.Sources of error in bioimpedance spectroscopy [J]. Physiol Meas,1998,19(4):235-245

[6] Correa CA,Screaton G,Hose DR,et al.Resistivity changes in conductive silicone sheets under stretching[J].Physiol Meas, 2002, 23 (2): 183-188

[7]付峰,臧益民,董秀珍.心血管成像技术的现状及展望[J].心脏杂志,2000,12(1):47-49.

[8]付峰,臧益民,董秀珍,等.血液复阻抗频率特性的测量[J].心功能杂志,1999,11(2):80-82

[9]付峰,臧益民,董秀珍,等.实时电阻抗断层成像系统对离体心脏充盈模型的初步结果[J].心脏杂志,2003,15(1):12-14.

备注/Memo

备注/Memo:
收稿日期：2002-12-13.
更新日期/Last Update: 2003-05-01