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Sponsored by: |
Deep Breeze |
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Information provided by: | Deep Breeze |
ClinicalTrials.gov Identifier: | NCT00672893 |
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.
Condition | Intervention |
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Central Airway Stenosis |
Other: Vibration Response Imaging |
Study Type: | Observational |
Study Design: | Prospective |
Official Title: | Vibration Response Imaging (VRI) in Patients That Are Undergoing Pulmonary Interventional Procedure |
Estimated Enrollment: | 200 |
Study Start Date: | February 2006 |
Estimated Study Completion Date: | December 2009 |
Estimated Primary Completion Date: | May 2009 (Final data collection date for primary outcome measure) |
Groups/Cohorts | Assigned Interventions |
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Observation
Patients who present to the clinic with airway obstruction and who are designated to undergo intervention
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Other: Vibration Response Imaging
12 seconds of recording lung sounds
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Ages Eligible for Study: | 18 Years to 85 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
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.
Inclusion Criteria:
Exclusion Criteria:
United States, Colorado | |
National Jewish Medical and Research Center | Recruiting |
Denver, Colorado, United States, 80602 | |
Contact: Ali I Musani, M.D. MusaniA@njc.org | |
Principal Investigator: Ali I Musani, M.D. | |
United States, North Carolina | |
Duke University Medical Center | Recruiting |
Durham, North Carolina, United States, 27710 | |
Contact: Momen M Wahidi, M.D. 919-668-0340 wahid001@mc.duke.edu | |
Principal Investigator: Momen M Wahidi, M.D. | |
France | |
Hospital St. Marguerite | Recruiting |
Marseille, France, 13274 | |
Contact: Hervé Dutau 33-049-174-4694 herve.dutau@ap-hm.fr | |
Principal Investigator: Hervé Dutau, M.D. | |
Germany | |
Thoraxklinik at Heidelberg University | Recruiting |
Heidelberg, Germany, D-69126 | |
Contact: Heinrich D Becker, M.D. 49-6221-396-302 hdb@bronchology.org | |
Principal Investigator: Heinrich D Becker, M.D. | |
Japan, Kanagawa | |
St. Marianna Hospital | Recruiting |
Kawasaki, Kanagawa, Japan, 216-8511 | |
Contact: Teruomi Miyazawa, M.D. 81-44-977-8111 ext 3370 miyazawat@marianna-u.ac.jp | |
Principal Investigator: Teruomi Miyazawa, M.D. |
Principal Investigator: | Heinrich D Becker, M.D. | Thoraxklinik at Heidelberg University School of Medicine |
Responsible Party: | Thoraxklinik at Heidelberg University ( Prof. Heinrich D. Becker, MD ) |
Study ID Numbers: | DB035-Multi-site, DB020-Single-site |
Study First Received: | May 1, 2008 |
Last Updated: | May 5, 2008 |
ClinicalTrials.gov Identifier: | NCT00672893 History of Changes |
Health Authority: | United States: Institutional Review Board |
central airway stenosis, lung sounds, airway obstruction, bronchial obstruction, bronchoscopic treatment |
Respiratory Sounds Constriction, Pathologic Airway Obstruction |