- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT02611947
CT Indexes of Emphysema and Airways in Healthy Volunteers: Normal Values; Relations With Gender, Height and Weight
Panoramica dello studio
Descrizione dettagliata
87 healthy volunteers performed consecutively a low-dose chest CT scan and pulmonary function tests:
On chest CT scans, indexes reflecting pulmonary emphysema and airways measurements have been computed by using dedicated softwares. Each of our three readers performed two reading sessions.
Relative area of lung parenchyma with attenuation value less than -960 Hounsfield Units; luminal area and wall thickness in third and fourth generations airways were recorded.
- Pulmonary function tests were performed: vital capacity, forced vital capacity , functional residual capacity, total lung capacity, residual volume, forced expiratory volume in one second, and diffusion lung capacity for carbon monoxide were recorded (either in absolute values and percentage of predicted values).
CT indexes were compared with gender, height and weight.
Tipo di studio
Iscrizione (Effettivo)
Contatti e Sedi
Luoghi di studio
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Brussels, Belgio, 1070
- Erasme University Hospital
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Never smoked.
- No respiratory infection in the 4 weeks before the begin of the study.
- No history of pulmonary resection.
- No active malignancy or malignancy of any organ system within the past 5 years.
Exclusion Criteria:
- no exclusion criteria
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
|---|---|
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Healthy Volunteers
Inclusion criteria:
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Supine chest CT scan after full inspiration. Acquisition parameters: (Topogram 35 mA 120 kV 512 mm length) 35 quality ref mAs with care-dose ON 120 kV Pitch 1.4 Rotation time 0.33 s Acquired images 64 x 0.6 mm |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
CT index - RA960 (%)
Lasso di tempo: 4 hours
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From acquired data, images were reconstructed using a soft algorithm.
On these soft images, the relative area of lung parenchyma with attenuation value less than -960 Hounsfield Units was computed (expressed in %), as an index representative of pulmonary emphysema extent.
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4 hours
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CT index - LA3rd (mm2)
Lasso di tempo: 4 hours
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From acquired data, images were reconstructed using a high resolution algorithm.
On these high-resolution images, the airway lumen was measured in third generations of airways (expressed in mm2).
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4 hours
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CT index - LA4th (mm2)
Lasso di tempo: 4 hours
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From acquired data, images were reconstructed using a high resolution algorithm.
On these high-resolution images, the airway lumen was measured in fourth generations of airways (expressed in mm2).
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4 hours
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CT index - WT3rd (mm)
Lasso di tempo: 4 hours
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From acquired data, images were reconstructed using a high resolution algorithm.
On these high-resolution images, the airway wall was measured in third generations of airways (expressed in mm).
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4 hours
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CT index - WT4th (mm)
Lasso di tempo: 4 hours
|
From acquired data, images were reconstructed using a high resolution algorithm.
On these high-resolution images, the airway wall was measured in fourth generations of airways (expressed in mm).
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4 hours
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Pulmonary function tests - VC (l)
Lasso di tempo: 4 hours
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Vital capacity was measured (expressed in l).
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4 hours
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Pulmonary function tests - FVC (l)
Lasso di tempo: 4 hours
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Forced vital capacity was measured (expressed in l).
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4 hours
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Pulmonary function tests - FRC (l)
Lasso di tempo: 4 hours
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Functional residual capacity capacity was measured (expressed in l).
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4 hours
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Pulmonary function tests - TLC (l)
Lasso di tempo: 4 hours
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Total lung capacity was measured (expressed in l).
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4 hours
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Pulmonary function tests - RV (l)
Lasso di tempo: 4 hours
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Residual volume was measured (expressed in l).
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4 hours
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Pulmonary function tests - FEV1 (l)
Lasso di tempo: 4 hours
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Forced expiratory volume in one second was measured (expressed in l).
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4 hours
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Pulmonary function tests - DLCO (ml/min/ mmHg)
Lasso di tempo: 4 hours
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Diffusion lung capacity for carbon monoxide was measured (expressed in ml/min/ mmHg)
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4 hours
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Collaboratori e investigatori
Sponsor
Pubblicazioni e link utili
Pubblicazioni generali
- Madani A, Zanen J, de Maertelaer V, Gevenois PA. Pulmonary emphysema: objective quantification at multi-detector row CT--comparison with macroscopic and microscopic morphometry. Radiology. 2006 Mar;238(3):1036-43. doi: 10.1148/radiol.2382042196. Epub 2006 Jan 19.
- Madani A, De Maertelaer V, Zanen J, Gevenois PA. Pulmonary emphysema: radiation dose and section thickness at multidetector CT quantification--comparison with macroscopic and microscopic morphometry. Radiology. 2007 Apr;243(1):250-7. doi: 10.1148/radiol.2431060194.
- Hackx M, Bankier AA, Gevenois PA. Chronic obstructive pulmonary disease: CT quantification of airways disease. Radiology. 2012 Oct;265(1):34-48. doi: 10.1148/radiol.12111270.
- Hackx M, Gyssels E, Severo Garcia T, De Meulder I, Alard S, Bruyneel M, Van Muylem A, Ninane V, Gevenois PA. Chronic Obstructive Pulmonary Disease: CT Quantification of Airway Dimensions, Numbers of Airways to Measure, and Effect of Bronchodilation. Radiology. 2015 Dec;277(3):853-62. doi: 10.1148/radiol.2015140949. Epub 2015 May 19.
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- P2010/175
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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