Chronic obstructive pulmonary disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria for the case group: 1. Clinically confirmed COPD with symptoms and/or risk factors; 2. Lung function examination was performed within 3 days before and after CT examination, and pulmonary function examination was performed within the same day in case of acute exacerbation of COPD; 3. No treatment was performed between CT examination and lung function examination. Inclusion criteria for the normal group: 1. Previous medical history or this visit is not COPD or asthma; 2. A lung function test was performed within 1 week before and after the CT examination, and the lung function test results were normal.
Exclusion criteria
Exclusion criteria: Exclusion criteria for the case group: 1. The presence of diseases affecting pulmonary observation in CT images; 2. History of asthma attacks; 3. Post-treatment is difficult to reconstruct bronchus and lung parenchyma; 4. Lung function examination is not fully cooperative. Exclusion criteria for the normal group: 1. The presence of diseases affecting lung observation in CT images; 2. History of asthma attacks.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Prediction probability of convolutional neural network; | — |
Countries
China
Contacts
Shanghai General Hospital