New CT scanner put to the test in small study
NCT ID NCT04781296
First seen Jun 27, 2026 ยท Last updated Jun 27, 2026
Summary
This study tested a new kind of CT scanner, called photon-counting CT, to see if it works well in a real hospital. Thirty men over age 50 with normal kidney function took part. The goal was to collect data and get feedback on the images, not to treat any disease.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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30 people
The number who actually took part.
- Started
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Apr 2021
- Finished
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Dec 2022
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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50 years and older
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age \>50 years * Male * Normal renal function per standardized guidelines (GFR \> 60 mL/min) * Previous CT examination at KS no more than 12 months prior to the study examination * Signed informed consent Exclusion Criteria: * Iodine contrast is contraindicated.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Karolinska University Hospital
Stockholm, 17164, Sweden
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