Healthy Clinical Trial
Official title:
The Associations Between EIT and Clinical Measures During Standard of Care Procedures in Patients With Respiratory Disease: A Preliminary Study
NCT number | NCT03797183 |
Other study ID # | 18-1843 |
Secondary ID | |
Status | Recruiting |
Phase | |
First received | |
Last updated | |
Start date | May 3, 2019 |
Est. completion date | November 30, 2024 |
The purpose of this study is to evaluate the Genesis Electrical Impedance Tomography (EIT) imaging system for use in pediatric respiratory disease populations including neuromuscular and bronchopulmonary dysplasia, as well as in age and height matched controls. The EIT does not use radiation, and is read through electrodes.
Status | Recruiting |
Enrollment | 90 |
Est. completion date | November 30, 2024 |
Est. primary completion date | November 30, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 14 Days to 40 Years |
Eligibility | Inclusion Criteria: - 2 weeks old - 40 years old - Premature infants with current age >2 weeks with a confirmed diagnosis of BPD based on NIH criteria - Or Chronic respiratory disease due to underlying neuromuscular disease - Or confirmed neuromuscular disease with an echo completed within the preceding 12 months of study participation of DMD or other diagnoses associated with mild cardiomyopathy. - have had a VQ scan - will be undergoing cardiac catherization for for pulmonary vein stenosis, pulmonary hypertension and/or pulmonary artery stenosis - Or healthy controls Exclusion Criteria: - <2 weeks of age - Congenital diaphragmatic hernia - Severe congenital heart disease - Significant genetic abnoralities - Anything that interferes with lead placement on the chest wall - Unwilling/refusal to sign consent - Pregnant or lactating - Pacemaker of other surgical implant and spinal implant (causes noise in the data) - Moderate to severe cardiomyopathy - Patients with temporary cognitive disability due to illness |
Country | Name | City | State |
---|---|---|---|
United States | Children's Hospital Colorado | Aurora | Colorado |
Lead Sponsor | Collaborator |
---|---|
University of Colorado, Denver |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | EIT imaging maps that provide regional information regarding ventilation and perfusion of the lung. | These images will be analyzed both visually for qualitative abnormalities and through quantitative pixel analysis that can provide information regarding lung volume, blood volume, and changes in either based on respiratory cycle, cardiac cycle, or intervention. Areas of low ventilation (atelectasis and consolidation) will be identified. | 24 months | |
Secondary | Regional conductivity changes due to ventilation | Describe regional ventilation in pediatric respiratory disease populations including neuromuscular weakness, skeletal/chest wall disorders, and chronic airway and parenchymal lung disease including bronchopulmonary dysplasia.
This is a qualitative aim and will summarize EIT images pictorially. Pixel densities will be evaluated for normality and summarized as mean (SD) or median (interquartile range). EIT images will be qualitatively compared between cases and controls. |
24 months | |
Secondary | Waveform for a mesh element | Time-series waveform indicated by time in seconds compared to Recon signal (au). | 24 months | |
Secondary | Regional conductivity changes due to perfusion | This is a qualitative and quantitative aim. Results will qualitatively compare EIT images with CXR and CT scan images when available. Images will be displayed side by side and interpreted by both the clinician and the EIT study staff. Various summary measures of EIT outcomes will be calculated including pixel heterogeneity, summary changes over tidal breath and variation between tidal peaks. Pearson and Spearman correlation will be calculated between summary EIT outcomes and continuous primary clinical values. Linear and logistic regression will be used to estimate associations (with 95% CI) between EIT measures and clinical outcomes. Summary data will be presented in tables and figures using basic descriptive statistics stratified by study group. | 24 months | |
Secondary | Regional pulsatile perfusion imaging at the end of systole | 5 minutes | ||
Secondary | Power waveform (computed as the inner product of measured voltages and applied currents) | 24 months |
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