Photon-counting CT for lung imaging in people with COPD
Official title: Photon-counting CT Post-processing Protocols for Robust Quantifications in Chest CT Scans
Run by Duke University · NCT07031336 · Data updated 2026-11-12
This project will test whether photon-counting CT scans can produce more accurate and reproducible measurements of emphysema and airway changes in people with COPD.
Quick facts
| Study type | Interventional |
|---|---|
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | Duke University Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Durham, North Carolina) |
| Status | Recruiting |
| Started | November 14, 2025 |
| Main results expected | December 12, 2026 |
| Study ends | December 12, 2027 |
| Registry record updated | August 26, 2026 |
| Trial ID | NCT07031336 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are participants in the Duke COPDGene Phase 4 cohort who can consent to an extra CT scan and are able to travel to Duke University Hospital in Durham, NC.
✕Probably not a fit
People who are not enrolled in the COPDGene Phase 4 cohort, who cannot undergo CT imaging, or who decline consent are unlikely to benefit from this project.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The project will recruit participants from the Duke COPDGene Phase 4 cohort who consent to undergo an additional photon-counting CT (PCCT) scan at Duke University Hospital. Scans will be acquired with a PCCT-specific protocol and also compared to conventional energy-integrating CT where available. Investigators will reconstruct the PCCT images using multiple post-acquisition parameter settings and apply recently developed harmonization techniques. Quantitative metrics such as Perc15, LAA-950, HU accuracy, Pi10, and airway wall percentage will be compared across reconstructions to identify reproducible acquisition and processing protocols.
Why it matters
Potential benefit: If successful, this could enable more precise and repeatable lung measurements that improve monitoring and characterization of emphysema and airway disease for people with COPD.
How similar studies have gone: Early technical studies suggest PCCT can improve spatial resolution and material discrimination, but applying harmonized protocols for emphysema and airway metrics is relatively new and not yet widely validated.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * This study recruit from the Duke-COPDGene Phase 4 study. All participants from this cohort is eligible and they will be included if they consent. Exclusion Criteria: * This study recruit from the Duke-COPDGene Phase 4 study. All participants from this cohort is eligible and they will be included if they consent.
Where it's running
-
Duke University Hospital
Durham, North Carolina, United States Recruiting
Study contacts
- Principal investigator: Ehsan Abadi, Ph.D. — Duke University
- Study coordinator: Wendy Curry
- Email: wendy.curry@duke.edu
- Phone: 919-668-8281
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.