[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100651628":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":21,"centralContacts":25,"locations":35,"responsibleParty":51,"collaborators":53,"id":58,"slug":59,"hasResults":60,"nctId":61,"briefTitle":62,"officialTitle":62,"acronym":10,"eligibilityCriteria":63,"healthyVolunteers":60,"sex":64,"minAge":65,"maxAge":66,"enrollmentInfo":67,"targetDuration":10,"studyType":70,"phases":10,"briefSummary":71,"conditions":72,"keywords":74,"overallStatus":37,"whyStopped":10,"lastUpdateSubmitDate":77,"lastUpdatePostDateStruct":78,"startDateStruct":81,"completionDateStruct":83,"leadSponsor":85,"locationsCount":86},{"fullName":5,"class":6},"Nanfang Hospital, Southern Medical University","OTHER",[8,12,15,18],{"label":9,"type":10,"description":11,"interventionNames":10},"COPD group",null,"any patient who complains of dyspnea, chronic cough or sputum, a history of recurrent lower respiratory infection and\u002For a history of exposure to disease risk factors, Pulmonary function examination indicated that FEV1\u002FFVC \\\u003C0.7 after bronchodilator was used to confirm COPD.",{"label":13,"type":10,"description":14,"interventionNames":10},"PRISM group","After bronchial dilation, FEV1\u002FFVC was ≥0.70, and FEV1%PRED was \\\u003C80%.",{"label":16,"type":10,"description":17,"interventionNames":10},"Smoking exposure groups","Smoking history of 10 years, or without COPD, pulmonary function of COPD diagnosis standard.",{"label":19,"type":10,"description":20,"interventionNames":10},"Normal control group","Never-smokers without airflow limitation and with normal pulmonary function.",[22],{"name":23,"affiliation":5,"role":24},"Laiyu Liu, professor","STUDY_CHAIR",[26,31],{"name":27,"role":28,"phone":29,"phoneExt":10,"email":30},"Laiyu Liu, Professor","CONTACT","+86 13632102245","liulaiyu@sina.com",{"name":32,"role":28,"phone":33,"phoneExt":10,"email":34},"Dong Yu","+86 15625868995","15625868995@163.com",[36],{"facility":5,"status":37,"city":38,"state":39,"zip":40,"country":41,"countryCode":42,"cosmosGeoPoint":43,"geoPoint":48,"contacts":49},"RECRUITING","Guangzhou","Guangdong","510400","China","CN",{"type":44,"coordinates":45},"Point",[46,47],113.25,23.11667,{"lat":47,"lon":46},[50],{"name":27,"role":28,"phone":29,"phoneExt":10,"email":30},{"type":52,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR",[54,56],{"name":55,"class":6},"The First Affiliated Hospital of Guangzhou Medical University",{"name":57,"class":6},"Qingyuan People's Hospital","100651628","dynamic-functional-imaging-phenotyping-and-disease-progression-risk-assessment-in-copd-using-dynamic-chest-radiography-a-multicenter-retrospective-study-100651628",false,"NCT07762573","Dynamic Functional Imaging Phenotyping and Disease Progression Risk Assessment in COPD Using Dynamic Chest Radiography: A Multicenter Retrospective Study","Inclusion Criteria:\n\n1. Aged 30-85 years.\n2. Male or female.\n3. Patients who underwent pulmonary function testing and dynamic chest radiography at the hospital.\n\nExclusion Criteria:\n\n1. Incomplete medical records.\n2. Considered unsuitable for inclusion in the study at the investigator's discretion.","ALL","30 Years","85 Years",{"count":68,"type":69},2500,"ESTIMATED","OBSERVATIONAL","To evaluate the utility of DCR-derived parameters for identifying dynamic functional imaging phenotypes, assessing disease severity, and predicting the risk of disease progression in COPD.",[73],"Chronic Obstructive Pulmonary Disease",[75,76],"Chronic obstructive pulmonary disease","Dynamic Chest Radiography","2026-08-09",{"date":79,"type":80},"2026-08-13","ACTUAL",{"date":82,"type":80},"2026-08-03",{"date":84,"type":69},"2030-01-30",{"name":5,"class":6},1]