Effect of Breast Tissue on EIT Lung Monitoring
Conditions
Keywords
Breast tissue, Electrical impedance tomography, Regional ventilation
Brief summary
Twenty-two healthy female volunteers were monitored using electrical impedance tomogprahy (EIT) in two different situations. First, with electrode belt placed over the breast tissue and second, with the electrode belt under the breast tissue. The EIT measurement was performed with adjunct spirometric measurement. The changes of regional ventilation related to the breast tissue and the size of breast tissue were evaluated.
Detailed description
The EIT measurement (PulmoVista 500, Dräger Medical, Germany) was performed in supine lying position. On every subject, an electrode belt of proper size based on the measured thorax circumference was placed. It was crucial to find a right position where it was possible to place the electrode belt over the breast tissue and then underneath the breast tissue, without changing the level and the position of the electrode belt on the thorax. Also, the position of the belt had to be between 4th and 6th intercostal space, as recommended by the manufacturer. The change of the position of the belt relative to the breast tissue was performed in a lying position by a slight pull of the buckled belt away from the subject´s body, so the subject could relocate the breast tissue over the belt using her own hands into the position as desired by the researcher.
Interventions
DEVICEElectrical impedance tomography (EIT)
Non-invasive, radiation-free bedside lung monitoring using small alternating currents with no known side effects.
Sponsors
Czech Technical University in Prague
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE
Intervention model description
Monitoring of 22 subjects, each subject was measured twice with electrode belt in two different positions.
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy female volunteers
Exclusion criteria
* morbid obesity * standard
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Regional ventilation changes possibly caused by the breast tissue | 30 minutes | The dependence of the regional ventilation evaluated by EIT on the breast size on the regional ventilation was not confirmed. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Female subjects enrollment in EIT studies and clinical applications | 30 minutes | Recommendation to include women in studies and clinical applications that use electrical impedance tomography for lung monitoring |
Countries
Czechia
Outcome results
None listed