To establish the pulmonary function range of Electrical Impedance Tomography (EIT) in normal individuals
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Aged >= 5 years and = 0.90 and Visual Analogue Scale (EQ-VAS) score >= 75. 4.Normal pulmonary function (FEV1 > LLN, FEV1/FVC > LLN). 5.If other conditions such as coronary heart disease, hypertension, or diabetes are present, relevant information must be documented. 6.Never smoker. 7.No regular use of medications such as corticosteroids or bronchodilators. 8.Able to cooperate in performing spirometry (i.e., pulmonary ventilation function testing). 9.Signed informed consent form.
Exclusion criteria
Exclusion criteria: 1.People for whom EIT is not suitable (such as those with a cardiac pacemaker, skin allergy or incomplete skin, pregnant individuals, etc.); 2. Situations judged by the researcher as likely to affect the conduct of the clinical study and the determination of the study results.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Distribution of regional lung function indices in the normal population (age, gender, height, region); | — |
Secondary
| Measure | Time frame |
|---|---|
| Correlation between Regional Pulmonary Function and Traditional Pulmonary Function; | — |
Countries
China
Contacts
The First Affiliated Hospital of Guangzhou Medical University