TY - JOUR
T1 - Harmonic Analysis for the Separation of Perfusion and Respiration in Electrical Impedance Tomography
AU - Battistel, Alberto
AU - Chen, Rongqing
AU - Hallemans, Noel
AU - Pintelon, Rik
AU - Lataire, John
AU - Moller, Knut
PY - 2021
Y1 - 2021
N2 - Electrical Impedance Tomography (EIT) is mainly used to display information about the respiration of a patient. However, also cardiac-related signals are present, and, although they have small amplitude, they can be distinguished by their frequencies. In this contribution, we report a method based on harmonic analysis to separate respiration and perfusion. These are described by a summation of amplitude-modulated signals at different frequencies. We report the mathematical background of the method and its application on the global impedance and, finally, show how it is possible to create frequency-related images highlighting either the respiration or the perfusion inside an EIT video.
AB - Electrical Impedance Tomography (EIT) is mainly used to display information about the respiration of a patient. However, also cardiac-related signals are present, and, although they have small amplitude, they can be distinguished by their frequencies. In this contribution, we report a method based on harmonic analysis to separate respiration and perfusion. These are described by a summation of amplitude-modulated signals at different frequencies. We report the mathematical background of the method and its application on the global impedance and, finally, show how it is possible to create frequency-related images highlighting either the respiration or the perfusion inside an EIT video.
KW - Electrical impedance tomography
KW - harmonic analysis
KW - respiration and perfusion separation
UR - http://www.scopus.com/inward/record.url?scp=85120695815&partnerID=8YFLogxK
U2 - 10.1016/j.ifacol.2021.10.269
DO - 10.1016/j.ifacol.2021.10.269
M3 - Article
VL - 54
SP - 281
EP - 286
JO - IFAC-PapersOnLine
JF - IFAC-PapersOnLine
SN - 2405-8963
IS - 15
ER -