[1]马结实,周德强,张和华,等.密闭流动池脉冲流动液流速的电阻抗参数表征方法研究[J].中国医学物理学杂志,2021,38(1):93-98.[doi:DOI:10.3969/j.issn.1005-202X.2021.01.016]
　MA Jieshi,ZHOU Deqiang,ZHANG Hehua,et al.A study on the characterization method of PELs velocity in the closed flow cell based on electrical impedance parameters[J].Chinese Journal of Medical Physics,2021,38(1):93-98.[doi:DOI:10.3969/j.issn.1005-202X.2021.01.016]
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密闭流动池脉冲流动液流速的电阻抗参数表征方法研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
38卷
期数:
2021年第1期
页码:
93-98
栏目:
医学信号处理与医学仪器
出版日期:
2021-01-29

文章信息/Info

Title:
A study on the characterization method of PELs velocity in the closed flow cell based on electrical impedance parameters
文章编号:
1005-202X（2021）01-0093-06
作者:
马结实1; 周德强1; 张和华1; 颜乐先1; 种银保2
1.陆军军医大学大坪医院， 重庆 400042； 2.陆军军医大学第二附属医院， 重庆 400037
Author(s):
MA Jieshi1;  ZHOU Deqiang1;  ZHANG Hehua1;  YAN Lexian1;  Chong Yinbao2
1. Daping Hospital, Army Medical University, Chongqing, 400042, China 2. The Second Affiliated Hospital, Army Medical University, Chongqing, 400037, China
关键词:
失血性休克; 电阻抗; 脉冲流动液; 流速; 频谱分析
Keywords:
hemorrhagic shock electrical impedance pulse flowing liquid velocity spectrum analysis
分类号:
R318
DOI:
DOI:10.3969/j.issn.1005-202X.2021.01.016
文献标志码:
A
摘要:
目的：利用流过输血输液装置密闭流动池的脉冲流动液的电阻抗参数表征流动液的流速。方法：应用精密阻抗分析仪测量该装置5个档位输液速率下的密闭流动池脉冲流动液的电阻抗模值的波形；对获得的电阻抗波形进行频谱分析，计算出各个电阻抗波形频谱主频，统计分析各个流速对应主频的差异；通过相关性分析和曲线估计确定脉冲流动液流速和其电阻抗波形频谱主频之间的回归关系。结果：直观测量和统计分析均表明脉冲流动液的电阻抗波形的变化频率随其流速的增加而升高（P<0.05）；脉冲流动液流速与其电阻抗波形频谱主频具有相关性（r=0.99, P<0.05），两者符合二项式关系y=-0.001 2x2+0.176 9x-0.134，R2=0.999 8。结论：可以用密闭流动池脉冲流动液的电阻抗参数表征其流速。
Abstract:
Abstract: Objective To characterize the velocity of pulse flowing liquid (PFL) with electrical impedance parameters of PFL flowing in the closed flow cell (CFC). Methods The waveforms of the FPLs electrical impedance moduli in a CFC were measured by a sophisticated impedance analyzer at five levels of infusion rate. The obtained electrical impedance waveforms were subjected to spectrum analysis, and the dominant frequency of the spectrum of each electrical impedance waveforms was calculated. The difference of each dominant frequency was analyzed corresponding to the five flow rates. The correlation between the PFLs velocity and its corresponding dominant frequency in spectrum of the electrical impedance waveforms was determined by the correlation analysis and curve estimation. Results Both the visual determination and the statistical analysis indicated that the dominant frequency of the PFL in the spectrum of electrical impedance waveforms increases with the increase of its flow velocity (P<0.05). The velocity of the PFL was correlated well with the dominant frequency in spectrums of the electrical impedance waveforms (r=0.99, P<0.05). The two were in a binomial relationship: y=-0.001 2x2+0.176 9x-0.134, R2=0.999 8. Conclusion The velocity of PFL through the CFC could be characterized by the electrical impedance parameter of the PFL.

相似文献/References:

[1]潘文才,种银保,秦明新,等.失血性休克脑血流低灌注磁感应相移检测的实验研究[J].中国医学物理学杂志,2018,35(6):707.[doi:DOI:10.3969/j.issn.1005-202X.2018.06.016]
　PAN Wencai,CHONG Yinbao,QIN Mingxin,et al. Experimental study of cerebral hypoperfusion in hemorrhagic shock using magnetic induction phase shift method[J].Chinese Journal of Medical Physics,2018,35(1):707.[doi:DOI:10.3969/j.issn.1005-202X.2018.06.016]

备注/Memo

备注/Memo:
【收稿日期】2020-09-14 【基金项目】陆军特色医学中心人才创新能力培养计划项目（2019CX- JSC021） 【作者简介】马结实，博士，工程师，研究方向：院前急救诊疗装备研发，E-mail: 13636715459@163.com 【通信作者】种银保，高级工程师，研究方向：院前急救与战场救护医学装备、医学计量与卫生装备质量控制、医疗设备故障诊断与系统维护等研究，E-mail: chongyinbao@163.net
更新日期/Last Update: 2021-01-29