NCT01229020

Distribution of Regional Lung Function by Vibration Response Imaging

Distribution of Regional Lung Function, as Determined by the Vibration Response Image Generated by the VRI-2000 System as Compared With Standard Radio-nuclear Method

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 25 (actual)
• Sponsor: Deep Breeze · Industry
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

Assessment of regional contribution of different areas of the lung to its integrated function is often required, such as prior to lung resection in the presence of tumor or emphysema. This assessment is derived from the proportion of zonal radionuclear perfusion or ventilation. The investigators hypothesized that lung VRI may provide an alternative approach to assess regional lung function.

Detailed description

Patients diagnosed with moderate-to-severe COPD by lung function studies and clinical evaluation presented in stable clinical condition and were evaluated by lung sound recordings and quantitative V/Q lung scintigraphy. Regional signals (percentage of lung sounds) for left and right lungs were compared with the corresponding regional count percentages of each radionuclide scan, by V/Q scan regions of interest.

Conditions

• Emphysema
• COPD

Interventions

Type	Name	Description
OTHER	Observational study - no intervention	Observational study - no intervention. Patients underwent VRI recordings and routine V/Q scan.

Timeline

• Start date: 2004-02-01
• Primary completion: 2006-01-01
• Completion: 2006-01-01
• First posted: 2010-10-27
• Last updated: 2010-10-27

Locations

1 site across 1 country: Israel