Distribution of Regional Lung Function by Vibration Response Imaging
Study Details
Study Description
Brief 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.
Condition or Disease | Intervention/Treatment | Phase |
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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.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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COPD patients Patients diagnosed with COPD, by the pulmonologist at the institute,who are referred to undergo ventilation/perfusion scans. |
Other: Observational study - no intervention
Observational study - no intervention. Patients underwent VRI recordings and routine V/Q scan.
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Outcome Measures
Primary Outcome Measures
- Comparison of regional lung vibration energy with regional lung function []
To map regional lung vibration energy in patients with emphysema by using the lung image generated by the VRI system and compare findings to distibution of perfusion and ventilation in standard V/Q scans
Secondary Outcome Measures
- Correlation of vibration lung sound energy with regional lung functions by V/Q scan []
Evaluate if the regional vibration energy is correlated with regional lung functions, as assessed by V/Q scan
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patient is able to read and understand the Informed Consent Form and he/she will provide written Informed Consent.
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Male or female in the age range of 18-85 years.
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The patient will undergo V/Q scan (up to ONE WEEK from the VRI recording)
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The patient presented for evaluation of COPD.
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Body Mass Index >21.
Exclusion Criteria:
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Unstable clinical status such as fever, acute shortness of breath, cough, hemoptysis, cheat pain, or acute chest illness.
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Chest wall deformation;
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Spine deformation (including severe scoliosis);
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Hirsutism;
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Potentially contagious skin lesion on the back;
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Skin lesion that would interfere with sensor placement;
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Any additional chronic lung disease of any findings such as past tuberculosis, visualized on CXR.
- Previous resection lung surgery and history of lung tumor; 9. Cardiac pacemaker or implantable defibrillator
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Chaim Sheba Medical Center at Tel Hashomer | Ramat-Gan | Israel | 52621 |
Sponsors and Collaborators
- Deep Breeze
Investigators
- Principal Investigator: Issahar Ben-Dov, MD, Chaim Sheba Medical Center
Study Documents (Full-Text)
None provided.More Information
Publications
- Celli BR, MacNee W; ATS/ERS Task Force. Standards for the diagnosis and treatment of patients with COPD: a summary of the ATS/ERS position paper. Eur Respir J. 2004 Jun;23(6):932-46. Erratum in: Eur Respir J. 2006 Jan;27(1):242.
- Demir T, Ikitimur H, Akpinar Tekgündüz S, Mutlu B, Yildirim N, Akman C, Ozmen O, Kanmaz B. The relationship between pulmonary function tests, thorax HRCT, and quantitative ventilation-perfusion scintigraphy in chronic obstructive pulmonary disease. Tuberk Toraks. 2005;53(4):347-53.
- Guntupalli KK, Reddy RM, Loutfi RH, Alapat PM, Bandi VD, Hanania NA. Evaluation of obstructive lung disease with vibration response imaging. J Asthma. 2008 Dec;45(10):923-30. doi: 10.1080/02770900802395496.
- Ikonen T, Harjula AL, Kinnula V, Savola J, Sovijärvi AR. Selective assessment of single-lung graft function with 133Xe radiospirometry in acute rejection and infection. Chest. 1996 Apr;109(4):879-84.
- Kramer MR, Raviv Y, Hardoff R, Shteinmatz A, Amital A, Shitrit D. Regional breath sound distribution analysis in single-lung transplant recipients. J Heart Lung Transplant. 2007 Nov;26(11):1149-54.
- DB010