Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Imaging pathologic pulmonary air and fluid accumulation by functional and absolute EIT.

G Hahn1, A Just, T Dudykevych

  • 1Department of Anaesthesiological Research, University of Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany. ghahn@gwdg.de

Physiological Measurement
|April 26, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Diagnosis, treatment and monitoring of chronic nonbacterial osteomyelitis (CNO) and chronic recurrent multifocal osteomyelitis (CRMO) - Evidence, practice and consensus-based recommendations from the German pediatric rheumatology society (GKJR).

Autoimmunity reviews·2026
Same author

Sex differences in chest electrical impedance tomography findings.

Physiological measurement·2024
Same author

New recommendations on cerebral venous and dural sinus thrombosis from the German consensus-based (S2k) guideline.

Neurological research and practice·2024
Same author

Distribution of regional lung function in upright healthy subjects determined by electrical impedance tomography in two chest examination planes.

Physiological measurement·2023
Same author

New application of saline contrast-enhanced electrical impedance tomography method for right ventriculography besides lung perfusion: detection of right-to-left intracardiac shunt.

QJM : monthly journal of the Association of Physicians·2023
Same author

Gathering expert consensus to inform a proposed trial in chronic nonbacterial osteomyelitis (CNO).

Clinical immunology (Orlando, Fla.)·2023
Same journal

Continuous tracking of aortic aneurysm diameter with peripheral pulse waves: a computational framework combining sequential Markov chain Monte Carlo with Kalman filtering.

Physiological measurement·2026
Same journal

The 2026 global roadmap for textile-integrated wearable technologies in health.

Physiological measurement·2026
Same journal

Augmenting single-lead ECG interpretation through QRS waveform decomposition and rotation.

Physiological measurement·2026
Same journal

Dynamic Beat-to-Beat Blood Pressure Estimation using a Multi-modal Wearable Deep Learning Approach.

Physiological measurement·2026
Same journal

Dual warm-start fusion versus attention-based fusion in low-label ECG-PCG classification: a controlled ablation study.

Physiological measurement·2026
Same journal

Inter-patient multi-label ECG classification via low-rank adaptation fine-tuned large language models with dynamic graph convolutional network.

Physiological measurement·2026
See all related articles

Electrical Impedance Tomography (EIT) accurately detects pneumothorax and hematothorax in lung patients. This study validates EIT

Area of Science:

  • Medical Imaging
  • Physiology
  • Biomedical Engineering

Background:

  • Electrical Impedance Tomography (EIT) is increasingly used in clinical research for critically ill lung patients.
  • Pathologic impedance distributions from air or fluid accumulation can affect EIT tomogram validity.
  • Non-linearities in imaging problems arise from conditions like pneumothorax, emphysema, haematothorax, and atelectases.

Purpose of the Study:

  • To clarify the influence of pathologic impedance distributions on EIT tomogram validity in lung imaging.
  • To assess the reliability of functional EIT (f-EIT) and absolute EIT (a-EIT) in detecting pleural abnormalities.
  • To compare EIT findings with CT scans and healthy volunteer data in intensive care patients.

Main Methods:

  • Investigated stepwise air and Ringer solution instillation into the pleural space of pigs.

Related Experiment Videos

  • Generated EIT images using a modified Sheffield back projection algorithm for f-EIT.
  • Applied a modified simultaneous iterative reconstruction technique (SIRT) for absolute resistivity quantification (a-EIT).
  • Applied f-EIT and a-EIT to intensive care patients and compared results with CT and healthy volunteer data.

    • Main Results:

    • f-EIT using back projection was not significantly disturbed by artificial pneumothorax or haematothorax in the animal model.
    • SIRT enabled reliable discrimination and detection of the location and amplitude of pneumothorax and haematothorax.
    • EIT results in patients showed good agreement with CT scans.
    • Significant differences in regional resistivity were found between patients and healthy volunteers.

    Conclusions:

    • EIT, particularly with SIRT, reliably detects and quantifies pleural air and fluid accumulation in lung imaging.
    • EIT provides a valuable, non-invasive tool for assessing lung conditions in critically ill patients.
    • The findings support the clinical utility of EIT in managing inhomogeneous lung conditions.