See how dynamic chest X-rays relate to COPD patterns and progression risk

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This multicenter retrospective analysis collects prior dynamic chest radiography, lung function tests, CT images, symptom scores, and follow-up data to build a standardized database. The goal is to characterize dynamic functional imaging phenotypes in COPD and to explore tools for predicting disease progression. Findings will inform model development and set the stage for future prospective validation across centers.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Aged 30-85 years.
2. Male or female.
3. Patients who underwent pulmonary function testing and dynamic chest radiography at the hospital.

Exclusion Criteria:

1. Incomplete medical records.
2. Considered unsuitable for inclusion in the study at the investigator's discretion.

Where it's running

• Nanfang Hospital, Southern Medical University
  Guangzhou, Guangdong, China Recruiting

Study contacts

• Study coordinator: Laiyu Liu, Professor
• Email: liulaiyu@sina.com
• Phone: +86 13632102245

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.