An observational study in Central Airway Stenosis, sponsored by Deep Breeze. Completed at 5 sites in 4 countries. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2009-06-16.
Sponsored by Deep Breeze · Observational
Vibration response imaging (VRI) technology, provides a radiation-free dynamic image of the lung, by visualizing vibration energy emitted during the respiration cycle (lung sounds). Airflow in the lungs during the respiration cycle creates vibrations that propagate through the lung tissue; these vibrations are affected by the structural properties of the lungs and may vary in space, time and frequency. Moreover, any structural alteration, such as a bronchial obstruction or space occupying infiltration, is reflected in a corresponding modification of the vibration response.
As obstructions that occur in airways alter airflow, the VRI may provide additional lung function information prior to treatment for airway obstruction and during follow-up. Moreover, the VRI may provide the physician immediate evaluation of the improvement of air flow distribution, quantitative and qualitative measurements. Furthermore, the VRI is a non-invasive, radiation free procedure which is simple and doesn't require the level of patient effort required for lung function test and other evaluation.
146 studies on the registry are indexed under Respiratory Sounds; 32 are open to participants now.
This study's planned enrollment of 200 is above the median of 100 across 63 observational studies indexed under Respiratory Sounds.
Browse Respiratory Sounds studies →Deep Breeze is the lead sponsor of 9 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients in the age range of 18-85 and consisting of both male and females, who present to the clinic with airway obstruction and who are designated to undergo intervention.
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Exclusion Criteria:
Patients who present to the clinic with airway obstruction and who are designated to undergo intervention
Other: Vibration Response Imaging
12 seconds of recording lung sounds
The principal objective is to determine the ability of the VRI to assess changes in the lungs before and after pulmonary intervention in patients suffering from airway obstruction.
Time frame: Baseline and follow-up up to 3 months
The secondary objective is to assess the contribution of the VRI in aiding in identification of the pulmonary obstruction as compared to the standard methods prior the intervention procedure.
Time frame: Baseline
This study is completed, as verified in Jun 2009. You cannot join it, but the record below documents what was studied.
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