An observational study in Community Acquired Pneumonia (CAP), sponsored by University of Southern Denmark. Recruiting at 1 site in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-13.
Sponsored by University of Southern Denmark · Observational
Objective: To quantify and compare total staff person-time per imaging episode betweenconventional chest radiography (CXR) and ULDCT in adult emergency department patients in whom CAP is a differential diagnosis.
Background: Community-acquired pneumonia (CAP) is a leading cause of acute hospital admission. Chest radiography, the standard first-line imaging test, has limited sensitivity, whereas ultra-low-dose CT (ULDCT) offers higher diagnostic accuracy at a comparable radiation dose. The staff person-time implications of substituting ULDCT for radiography in emergency department workflow are unknown.
Objective: To quantify and compare total staff person-time per imaging episode between conventional chest radiography (CXR) and ULDCT in adult emergency department patients in whom CAP is a differential diagnosis.
Methods: Single-centre, two-period observational time-and-motion study at the emergency department of Southern Jutland Hospital - Aabenraa. The CXR arm was collected from 2025 to June 2027; the ULDCT arm is collected from September 2026. The primary outcome is cumulative staff person-minutes per imaging episode, combining electronic radiology-system timestamps with stopwatch-measured in-room occupancy time. The primary analysis is a Mann-Whitney U test with a bootstrapped confidence interval for the difference in medians, supplemented by adjusted quantile regression.
90 studies on the registry are indexed under Community-Acquired Pneumonia; 53 are open to participants now.
This study's planned enrollment of 66 is below the median of 528 across 29 observational studies indexed under Community-Acquired Pneumonia.
Browse Community-Acquired Pneumonia studies →University of Southern Denmark is the lead sponsor of 335 studies on the registry; 45 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients from Emergency Department from Hospital Sonderjylland, Aabenraa, Denmark.
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Exclusion Criteria:
Conventional chest radiography
Other: ULDCT
Time used to complete the radiographic procedure
Cumulative staff person-minutes per imaging episode
Total human resource utilisation, defined as cumulative staff person-minutes per imaging episode, from the point staff fetch the patient for imaging to the point a final radiological report is available. The time contributed by every involved staff member is summed (multi-staff summation rule: two staff members working simultaneously for two minutes contribute four person-minutes). Contributing personnel categories: porters, radiographers, nurses, and radiologistsor reporting radiographers.
Time frame: From admission to completon of imaging, up to 1 week.
Portering/transport time
From staff fetching the patient at the ward room to arrival at the imaging room measured in minutes
Time frame: From admission to arrival at imaging, up to 24 hours.
in-room occupancy time
When the patient arrives at imaging until patient leaves imagining department
Time frame: From arrival at imaging to discharge from imaging, up to 24 hours
image acquisition time
Time (minutes) taken to complete the imaging
Time frame: From time imaging begins to time imagining ends, up to 60 minutes
reporting time
The time (minutes) taken according to the electronic registration system
Time frame: From imaging completion to completion in electonic registration system, up to 60 minutes
Plan to share: No
No publications or documents are linked to this record.
Started Jan 2025 (actual). Primary completion is estimated for Jun 2027, 29 months after the start.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Community-Acquired Pneumonia →
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