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Evaluation of CT-XPI

Evaluation of Computed Tomography X-ray-Pulsatility Index (CT-XPI)

Who can join

Ages 18 and older · All sexes

Inclusion Criteria:

* Age 18 years or older
* Able to sign and date the informed consent form
* Will undergo a clinically-indicated CT exam of the head, neck, chest, abdomen, pelvis, or extremities

Exclusion Criteria:

* Pregnant or lactating
* In need of urgent or emergent care
* Have any conditions that, in the opinion of the PI or designee, would interfere with the evaluation of the results or constitute a health hazard for the participant

About the study

The goal of this clinical trial is to learn if a new computed tomography (CT) lung perfusion imaging method is as effective as standard of care (SOC) CT imaging. The main question it aims to answer is:

* Does the new contrast-free method provide more information about lung perfusion than SOC?

Participants will undergo a 30 minute chest CT.

What is being tested

• CT scan (diagnostic test)

Sponsor: University of Wisconsin, Madison · Participants: 30 · Started: Jan 26, 2026

Contact the study team

• Radiology Studies · Phone: 608-282-8349

Official record on ClinicalTrials.gov — NCT07192133

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.