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Recruiting NCT04959526

Shear-wave Elastography Compared to Respiratory Function Testing

No phase Interventional Respiratory Function Loss Respiratory Complication

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Shear-wave elastography.
Who it may be relevant to
Registry conditions: Respiratory Function Loss, Respiratory Complication. Basic parameters: from 18 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
United States
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Comparison of Shear-wave Elastography to State-of-the-art Respiratory Function Testing to Measure the Range of Forces Generated by the Diaphragm Muscle

Overview

The purpose of this study is to evaluate the relationship between transdiaphragmatic pressure (Pdi) and diaphragm shear-wave elastography (SWE) during state-of-the-art respiratory muscle testing including volitional efforts (e.g., maximal inspiratory pressure, maximal expiratory pressure, Valsalva maneuver), as well as maximal phrenic nerve stimulation.

Interventions

  • Diagnostic test Shear-wave elastography
    Ultrasound based imaging of diaphragm muscle activity

Primary outcome measures

  • Shear wave speed [Time frame: 3 hours]

Eligibility criteria

Inclusion criteria

\- Adult male and female healthy volunteers.

Exclusion criteria

  • Volunteers who are pregnant.
  • Volunteers with known pulmonary pathology (COPD, asthma requiring routine treatment).

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
N/A
Model
Single group
Masking
Open label
Primary purpose
Basic science

Study locations

United States · 1 center
  • Mayo Clinic in Rochester — Rochester

Identifiers

NCT: NCT04959526 · 21-003003

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗