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New laser imaging could help surgeons prevent strokes during brain surgery

NCT ID NCT04865718

Diagnosis Sponsor: Andrew Dunn 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 laser-based imaging method that shows blood flow in the brain in real time during surgery. It involves 20 adults having brain surgery for conditions like aneurysms. The goal is to see if this technique can give surgeons continuous feedback, unlike the current dye-based method that can only be used a few times.

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 imaging technique could help surgeons see blood flow continuously during brain surgery, potentially reducing stroke risk.
What could go wrong
This is a small, early-stage study with only 20 participants and is currently suspended. The technique may not work as well as expected or may not improve outcomes.

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 20 people

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

Started

Jun 2019

Expected to finish

Dec 2028

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

This study will enroll adults planned for craniotomy procedures such as planned resections for brain tumor or neurovascular procedure such as aneurysm or arteriovenous malformation

Ages

18 years and older

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: * Adults (18 years or older). * Size of craniotomy at least 2 cm. * Possibility of intraoperative ICGA. * Able to render written informed consent. Exclusion Criteria: * Patients unable to legally consent. * Patients with impaired cognitive function.

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Conditions

The condition(s) this trial relates to.

arteriovenous hemangioma/malformation arteriovenous malformations of the brain brain aneurysm neurovascular disorder

As listed by the trial registrant

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

Aneurysm, brain Arteriovenous malformation of brain Neurovascular disorder

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Dell Seton Medical Center

    Austin, Texas, 78701, United States

More trials for these conditions

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