Comparing Electrical Impedance Tomography to Computed Tomographic Angiography

Colorado State University (CSU)

Status: Active, not recruiting

Conditions: Pulmonary Embolism

Treatments: Device: Electrical impedance tomography

Study type: Observational

Funder types: Other

Identifiers

NCT05546333

21-4600

Details and patient eligibility

About

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.

Enrollment: 63 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

63 participants in 1 patient group

Patients receiving CTA

Description:

Patients who will receive a CTA due to clinical need will be imaged with electrical impedance tomography in addition to the CTA.

Treatment:

Device: Electrical impedance tomography