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Research on the Application of Electrical Impedance Tomography in Bronchial Challenge Testing | Clinical Trials | Clareo Health

NOT_YET_RECRUITING

Research on the Application of Electrical Impedance Tomography in Bronchial Challenge Testing

NCT06502405•wang kaifei

View on ClinicalTrials.gov

Summary

The purpose of this study was to examine whether electrical impedance tomography (EIT) was capable of identifying the deteriorated lung function on a regional level during bronchial challenge testing and whether EIT may provide additional information during bronchial challenge testing and identify spatial and temporal heterogeneity of regional lung function.

Detailed Description

The content of this study includes: 1. Can EIT identify the uneven ventilation caused by airway contraction in patients during bronchial provocation tests. 2. Can EIT monitor airway contraction in patients before Spirometer examination after inhaling activators. 3. Can EIT observe uneven ventilation caused by airway contraction through tidal breathing after the patient inhales activator.

Eligibility

Age

18 - 80 years

Sex

ALL

Healthy Volunteers

Yes

Inclusion Criteria

•1. Patients suspected of asthma who require bronchial challenge testing.
•2. The Bronchodilator responsiveness testing is negative.
•3. patients with a pre-bronchodilator FEV1 \>60% predicted.
•4. No contraindications for bronchial provocation test examination.
•5. Fully understand the purpose and significance of this study, and voluntarily participate in the research.

Exclusion Criteria

•1\. patients with a pre-bronchodilator FEV1≤60% predicted.
•1. Contraindications for bronchial challenge testing.
•2. Pregnant or lactating women.
•3. After pacemaker surgery.

Key Dates

Start Date

August 1, 2024

Primary Completion Date

December 31, 2024

Completion Date

June 30, 2025

Last Updated

July 16, 2024

Enrollment

100

ESTIMATED participants

Conditions

Asthma

Contacts

Lu Cao, Master

CONTACT

13810389517 caolu301@163.om

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Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: July 16, 2024Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

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Research on the Application of Electrical Impedance Tomography in Bronchial Challenge Testing

Inclusion Criteria

Exclusion Criteria

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