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New ultrasound software could spot kidney stones without radiation

NCT ID NCT02214836

Diagnosis Sponsor: University of Washington Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This study tests whether new software for ultrasound machines can better detect and measure kidney stones compared to standard methods. Researchers will scan 370 adults with known calcium-based kidney stones and compare the results to CT scans and surgical findings. The goal is to improve diagnosis while avoiding radiation exposure.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to more accurate, radiation-free ultrasound imaging for diagnosing kidney stones.
What could go wrong
This is an early-stage imaging study, not a treatment. The new software may not prove more accurate than current methods.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

219 people

The number who actually took part.

Started

Jan 2015

Finished

Jul 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients with kidney stones that are visible on x-ray (i.e., calcium stones) * Current CT scan within the 90-day pre-operative period * Able to give informed consent * Age 21 years or older Exclusion Criteria: * Inability to give informed consent * Age less than 21 years * Stones not visible on x-ray * Patients with systemic disease or renal anatomical disorders (RTA, primary hyperparathyroidism, sarcoidosis, enteric hyperoxaluria, medullary sponge kidney)

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Conditions

The condition(s) this trial relates to.

Kidney Calculi nephrolithiasis ureterolithiasis urolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Kidney stones Nephrolithiasis Ureter stones Urolithiasis

Contacts and locations

Locations

  • University of Washington, Department of Urology

    Seattle, Washington, 98195, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.