- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT02611947
CT Indexes of Emphysema and Airways in Healthy Volunteers: Normal Values; Relations With Gender, Height and Weight
Visão geral do estudo
Descrição detalhada
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 de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
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Brussels, Bélgica, 1070
- Erasme University Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
|---|---|
|
Healthy Volunteers
Inclusion criteria:
|
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 |
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
CT index - RA960 (%)
Prazo: 4 hours
|
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.
|
4 hours
|
|
CT index - LA3rd (mm2)
Prazo: 4 hours
|
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).
|
4 hours
|
|
CT index - LA4th (mm2)
Prazo: 4 hours
|
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)
Prazo: 4 hours
|
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).
|
4 hours
|
|
CT index - WT4th (mm)
Prazo: 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).
|
4 hours
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Pulmonary function tests - VC (l)
Prazo: 4 hours
|
Vital capacity was measured (expressed in l).
|
4 hours
|
|
Pulmonary function tests - FVC (l)
Prazo: 4 hours
|
Forced vital capacity was measured (expressed in l).
|
4 hours
|
|
Pulmonary function tests - FRC (l)
Prazo: 4 hours
|
Functional residual capacity capacity was measured (expressed in l).
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4 hours
|
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Pulmonary function tests - TLC (l)
Prazo: 4 hours
|
Total lung capacity was measured (expressed in l).
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4 hours
|
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Pulmonary function tests - RV (l)
Prazo: 4 hours
|
Residual volume was measured (expressed in l).
|
4 hours
|
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Pulmonary function tests - FEV1 (l)
Prazo: 4 hours
|
Forced expiratory volume in one second was measured (expressed in l).
|
4 hours
|
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Pulmonary function tests - DLCO (ml/min/ mmHg)
Prazo: 4 hours
|
Diffusion lung capacity for carbon monoxide was measured (expressed in ml/min/ mmHg)
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4 hours
|
Colaboradores e Investigadores
Patrocinador
Publicações e links úteis
Publicações Gerais
- 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.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- P2010/175
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