ArticlePloS one2017
Electrical impedance tomography: Amplitudes of cardiac related impedance changes in the lung are highly position dependent.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Lung Volume Change Under Apnoeic Oxygenation With Different Flow Rates in Children: A Single-Centre Prospective Randomized Controlled Non-Inferiority Trial.Paediatric anaesthesia · 2026Trial
- Efficacy of a lung recruitment manoeuvre in children undergoing general anaesthesia with a supraglottic airway.British journal of anaesthesia · 2025Trial
- Trial
- Utility of electrical impedance tomography to measure neonatal pulmonary circulation changes: a lamb study.Pediatric research · 2026Article
- Recommendations for lung ventilation and perfusion assessment with chest electrical impedance tomography in critically ill adult patients: an international evidence-based and expert Delphi consensus study.EClinicalMedicine · 2025Article
- Lung electrical impedance tomography during positioning, weaning and chest physiotherapy in mechanically ventilated critically ill patients: a narrative review.Annals of intensive care · 2025Review
- Confounding Factors and Their Mitigation in Measurements of Bioelectrical Impedance at the Skin Interface.Bioengineering (Basel, Switzerland) · 2025Review
- Electrical impedance tomography-based temporal signals correlate with quantitative computed tomography-based spatial variables in asthma subjects: a pilot study.Frontiers in physiology · 2025Article
- Reconstruction of Heart-related Imaging from Lung Electrical Impedance Tomography Using Semi-Siamese U-NetCurrent medical imaging · 2025Article
- Motion Artifacts Reduction for Noninvasive Hemodynamic Monitoring of Conscious Patients Using Electrical Impedance Tomography: A Preliminary Study.Sensors (Basel, Switzerland) · 2023Article
- The feasibility of ultrasound Graf method in screening infants and young children with congenital hip dysplasia and follow-up of treatment effect.Translational pediatrics · 2021Article
- Cardiovagal Baroreflex Hysteresis Using Ellipses in Response to Postural Changes.Frontiers in neuroscience · 2021Article
- Electrical Impedance Tomography - Recent Applications and Developments.Journal of electrical bioimpedance · 2021Article
- Semi-Siamese U-Net for separation of lung and heart bioimpedance images: A simulation study of thorax EIT.PloS one · 2021Article
- Increasing Veno-Arterial Extracorporeal Membrane Oxygenation Flow Reduces Electrical Impedance of the Lung Regions in Porcine Acute Heart Failure.Physiological research · 2020Article
- Electrical impedance tomography in perioperative medicine: careful respiratory monitoring for tailored interventions.BMC anesthesiology · 2019Review
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundElectrical impedance tomography (EIT) is used on the thorax to measure impedance changes due to the presence of air and blood in the lung. This experimental study was performed to investigate the effect of posture on cardiac and respiratory related impedance changes.
methodsEIT measurements were performed on 14 healthy subjects in left-, right lateral, prone, supine and upright positions. Simultaneously, tidal volume was recorded with an ultrasonic flowmeter. For image reconstruction, the classic Sheffield back-projection and three variants of the modern GREIT algorithm were applied with two different reference frames. Amplitudes of cardiac- and respiratory impedance changes were extracted and compared between the positions.
resultsWe found significant differences in both cardiac and respiratory amplitudes between postures. Especially, supine and upright positions showed dramatic changes in amplitude. These differences between postures were unaffected by the change of reference frames in all reconstruction methods except of the classic Sheffield back projection. Possible sources that explain the observed posture dependency are discussed.
conclusionResearchers and clinicians need to be aware of this phenomenon when comparing EIT amplitudes in different body positions.
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