CompletedNot Applicable

Diagnostic Performance of Low-Dose CT for Acute Abdominal Conditions

Denmark, Norway246 participantsStarted 2022-12-07

Plain-language summary

The goal of this non-inferiority observational study is to assess the diagnostic performance of low-dose CT with deep learning image reconstruction (DLIR) in adult participants with acute abdominal conditions. The main research question is: • Can low-dose CT with DLIR achieve the same diagnostic performance as standard CT for the diagnosis of acute abdominal conditions. Participants will be examined with an additional low-dose CT directly after the standard CT. Participant will be their own controls. Registration record updated on 15.05.2026 to correct entry errors (correction of sample size calculation now resulting in a larger sample size than previously stated, mixed-effects logistic regression was used for analysis of the diagnostic accuracy) so that the record reflects the study protocol in effect before enrollment of the first participant.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients under evaluation for an acute abdominal condition who are referred to CT of the abdomen and pelvis. * Age \>18 years * The patients must be able to give their oral and written consent to study participation. Exclusion Criteria: * Contraindications regarding contrast enhanced CT examinations like known iodinated contrast media adverse reactions or claustrophobia. * Pregnancy.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Diagnostic performance of low-dose CT

Timeframe: 6 to 12 months

Trial details

NCT IDNCT05651360

SponsorOslo University Hospital

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2023-07-10

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