Comparing Electrical Impedance Tomography to Computed Tomographic Angiography

The study aim is to determine whether electrical impedance tomography (EIT) is equivalent in the detection of pulmomary emboli compared to Computed Tomographic Angiography (CTA). EIT is a non-invasive, non-ionizing functional imaging technique that can be performed at bedside. Electrical impedance tomography data will be collected on individuals undergoing a CTA scan of the chest at Medical Center of the Rockies (MCR). The primary outcome measure is to assess whether assessment by CTA corresponds with EIT in detection of pulmonary emboli. The study will include up to 63 participants. EIT data will be collected for up to 20 minutes during tidal breathing and for approximately five to ten seconds during breath-holding.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Conditions

Pulmonary Embolism Cardiovascular Diseases Embolism Embolism and Thrombosis Lung Diseases Respiratory Tract Diseases Vascular Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

UCHealth Medical Center of the Rockies

Loveland, Colorado, 80538, United States

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

18 years of age or older
Undergoing a CTA of the chest at MCR

Exclusion criteria

Under 18 years of age
Body mass index (BMI) > 30
Individuals with known thoracic metal implants or devices, such as pacemakers (internal and external), staples, or spinal and rib hardware
Individuals deemed by the research team as too unstable to safely apply the EIT belt, such as hemodynamic or respiratory instability (e.g., intubated patients), and individuals with unstable spinal injuries
Open wounds at the site of electrode belt application

Treatment and study plan

electrical impedance tomography

Device

Non-invasive measure of electrical impedance in the body, with data collected on electrodes on the surface of the body

Other names: EIT

Primary outcomes

Correspondence to CTA

Time frame: One year

To assess whether assessment by CTA corresponds with EIT in detection of pulmonary emboli (PE).

Sponsors and collaborators

Lead sponsor

Colorado State University

Other

Collaborators

UC Health Medical Center of the Rockies

Registry information

Official study title

Assessing the Effectiveness of Electrical Impedance Tomography Images to Detect Pulmonary Emboli Compared to Computed Tomographic Angiography

Important dates

Study start: 2023
Primary completion: 2024
Study completion: 2026
First posted: Sep 19, 2022
Registry last updated: Jun 11, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Active, Not Recruiting