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New ultrasound technique could help surgeons see brain activity in real time

NCT ID NCT02656407

Knowledge-focused Sponsor: Institut National de la Santé Et de la Recherche Médicale, France 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested a new, highly sensitive ultrasound technique to map brain activity during surgery in 23 adults with brain tumors or lesions. The method aims to provide real-time images of blood flow changes linked to brain function, without needing contrast agents. Researchers compared it to standard methods like cortical stimulation mapping and functional MRI to see if it could accurately identify active brain areas.

What this could mean

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

Active substance
Ultrasound device (Aixplorer)
What this could lead to
If successful, this could provide a cheaper, real-time way to map brain function during surgery, potentially improving surgical precision.
What could go wrong
This is a small, early-stage study (23 people) testing a new imaging method. It may not prove better than existing techniques, and results may not apply to all patients.

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

23 people

The number who actually took part.

Started

Feb 2016

Finished

Feb 2018

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Ages

18 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: * Men and women, adults ( \> 18 years old) * Participants who have to undergo brain surgery, awake or under general anesthesia, for tumor or lesion resection (all types of tumors and lesions, cortical or subcortical), with programmed intraoperative ultrasound and cortical simulation mapping. * Consent form signed by the patient after being informed (written and oral) of the research protocol. * Patient affiliate to the social welfare system Exclusion Criteria: * Minors ( \< 18 years old) * Pregnant, parturient or breastfeeding women * Protected persons, under guardianship, or under any administrative or legal right and liberty revocation procedure * Patient without affiliation to the social welfare system

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Conditions

The condition(s) this trial relates to.

brain cancer brain neoplasm

As listed by the trial registrant

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

Brain lesion Brain tumor

Contacts and locations

Locations

  • Pitié Salpetriere Hospital

    Paris, Île-de-France Region, 75013, France

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