中国医疗设备2016，Vol.31Issue(12)：35-37,45,4.DOI:10.3969/j.issn.1674-1633.2016.12.008
基于电阻抗成像技术实时监测肺内出血的可行性研究
Feasibility Study of Real Time Monitoring of Pulmonary Hemorrhage Based on Electrical Impedance Tomography Technology
桑宇飞 1代萌 2田庄 1史万宏1
作者信息
- 1. 解放军95246部队，广西 南宁530007
- 2. 第四军医大学，陕西 西安710032
- 折叠
摘要
Abstract
Objective To verify the feasibility of real-time monitoring of pulmonary hemorrhage by Electrical Impedance Tomography (EIT) technology and to provide reference for clinical research of pulmonary hemorrhage.Methods Firstly, biological experiments (experimental pigs) EIT technology intrapulmonary blood injection experiment was conducted to simulate human pulmonary hemorrhage. Then, hemorrhage in the respiratory impedance signal was recorded by Butterworth iflter and ifltered out the useless respiratory impedance signal of the original data by Butterworth iflter. Finally, through the analysis of Origin Pro software of injection volume and bleeding area of the region of interest (the relative value of the maximum amplitude of blood injection is no less than 20% of its value area) after treatment and amplitude correlation.Results Butterworth low pass digital filter (5 order) were designed by adopting the IIR method and treated with 0.15 Hz low pass iflter, respiratory impedance signal was well suppressed. There was a positive correlation between bleeding area and amplitude of bleeding volume.Conclusion EIT based real time monitor of the pulmonary hemorrhage is feasible, which indirectly improves clinical diagnosis and treatment rate of pulmonary hemorrhage, and provides reference for clinical research of pulmonary hemorrhage in the future.关键词
电阻抗成像技术/实时监测/肺内出血/低通数字滤波器/呼吸阻抗信号Key words
electrical impedance tomography technology/real time monitoring/pulmonary hemorrhage/low pass digital iflter/respiratory impedance signal分类
信息技术与安全科学引用本文复制引用
桑宇飞,代萌,田庄,史万宏..基于电阻抗成像技术实时监测肺内出血的可行性研究[J].中国医疗设备,2016,31(12):35-37,45,4.
