Abstract
Electrical impedance tomography (EIT) has the potential to measure ventilation and perfusion related impedance changes in the lung. Ventilation heterogeneity has already been confirmed by EIT in patients with obstructive lung diseases, such as chronic obstructive pulmonary disease (COPD) or cystic fibrosis (CF). In the present study, ventilation and cardiac/perfusion associated impedance changes (∆IV and ∆IC) were investigated in 12 CF patients. Differences in ∆IV and ∆IC ratios over the course of inspiration and expiration during normal tidal breathing were analyzed. Significant differences in ∆IV/∆IC within the expiration were determined (p < 0.01), whereas there were no significant differences in ∆I V/∆IC during inspiration. Differences in ΔIV/ΔIC during the expiration seemed to be mainly caused by variations in the cardiac/perfusion related impedance signal, which might possibly be induced by an impaired lung function in CF.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.