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Shear-wave Elastography Compared to Respiratory Function Testing
Comparison of Shear-wave Elastography to State-of-the-art Respiratory Function Testing to Measure the Range of Forces Generated by the Diaphragm Muscle
Who can join
Ages 18 and older · All sexes · Healthy volunteers welcome
Full 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).
About the study
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.
What is being tested
- Shear-wave elastography (diagnostic test)
Sponsor: Mayo Clinic · Participants: 24 · Started: Jul 28, 2021
Contact the study team
Official record on ClinicalTrials.gov — NCT04959526
Locations in the U.S.
| Minnesota | Mayo Clinic in Rochester, Rochester |
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.