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New ultrasound spots metal in brain after aneurysm clipping

NCT ID NCT07583225

Diagnosis Sponsor: Chinese PLA General Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tests a new type of ultrasound that can see through the skull to find tiny metal pieces left after brain aneurysm surgery. About 78 adults who had aneurysm clipping will get this ultrasound within 3 hours after surgery, along with a standard CT scan. The goal is to see if the ultrasound can reliably detect metal fragments early, which could help doctors act faster without extra radiation.

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.

Participants

About 78 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Apr 2027

An estimate. End dates often move.

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.

Who is studied

Positive group: standardized high-penetration super-resolution transcranial ultrasound within 3 hours after surgery, plus routine postoperative CT and CTA/other routine imaging when clinically indicated. Negative control group: standardized high-penetration super-resolution transcranial ultrasound within 3 hours after surgery, plus routine postoperative CT.

Ages

18 to 85 years

Sex

Anyone

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: 1. Age 18-85 years; 2. Positive group: patients undergoing intracranial aneurysm clipping with implanted metallic clips; negative control group: postoperative craniotomy patients without implanted clips; 3. Ability to complete transcranial ultrasound within 3 hours after surgery; 4. Availability of postoperative CT; 5. Written informed consent from the participant or legally authorized representative. Exclusion Criteria: 1. Inability to complete standardized transcranial ultrasound; 2. Missing postoperative CT; 3. Inability to establish the composite reference standard; 4. Presence of non-study-related metallic materials that may substantially interfere with target identification; 5. Withdrawal of consent; 6. Investigator judgment that continued participation is inappropriate.

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Conditions

The condition(s) this trial relates to.

brain aneurysm

As listed by the trial registrant

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

Intracranial aneurysms

How to take part

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  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

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