ABSTRACT
The world is witnessing a rapid increase in the need for new techniques and methods that allow monitoring of the respiratory system, especially after the emergence of the Covid-19 pandemic. To determine the respiratory rate, respiratory pattern, and inhaled and exhaled cycles, transthoracic bio-impedance signals were used. That showed great effectiveness in monitoring, but to obtain this signal in most cases method requires a large number of electrodes, which must be placed in uncomfortable places for the patient in the case of long-term monitoring. In this work, the possibility of monitoring the respiratory rate and pattern has been studied using signals recorded from different thoracic areas by four bio- impedance channels, which are placed in comfortable places for long-term monitoring. The right thoracic channel showed stability in signal and the best correlation with the respiratory pattern extracted from the transthoracic channel and the study results recommend using it for long-term monitoring. © 2022 IEEE.