Collecting brain monitoring data using non-invasive ultrasound

NOninVasive Intracranial PrEssure from Transcranial DoppLer Ultrasound Development of a Comprehensive Database of Multimodality Monitoring Signals for Brain-Injured Patients

Observational Emory University · NCT04548596

This study is collecting brain monitoring data from patients with brain injuries using ultrasound to help improve future treatments and understanding of their conditions.

Quick facts

Study typeObservational
Enrollment432 (estimated)
Ages18 Years and up
SexAll
SponsorEmory University Academic / other
Locations4 sites (Davis, California and 3 other locations)
Trial IDNCT04548596 on ClinicalTrials.gov

What this trial studies

This observational study aims to develop a comprehensive database of multimodality monitoring signals from brain-injured patients using Transcranial Doppler (TCD) ultrasound. Conducted in neurocritical care units at several prominent medical centers, the study will record cerebral blood flow velocity signals from patients with conditions such as traumatic brain injury and ischemic stroke. The data collection will occur in four scenarios, with each recording lasting up to 60 minutes, focusing on gathering high-resolution physiological signals to support future algorithm development and validation. This project is not hypothesis-driven but seeks to enhance understanding of brain monitoring.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with an intracranial pressure monitoring device.

Not a fit: Patients with unstable medical conditions or those who cannot safely undergo the TCD procedure may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the monitoring and management of brain injuries, leading to better patient outcomes.

How similar studies have performed: While this approach is observational and not hypothesis-driven, similar studies utilizing non-invasive monitoring techniques have shown promise in enhancing patient care.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male or female subjects 18 years of age and older
2. Subjects who have an ICP Monitoring device

Exclusion Criteria:

1. Unstable medical illness such as recordings might interfere with medical care.
2. Subjects that don't have a viable temporal window to insonate the MCA.
3. Subjects that have skull fractures that the attending or study investigators believe participation would add clinical risk to the subject.

Where this trial is running

Davis, California and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Traumatic Brain InjurySubarachnoid HemorrhageIntracerebral HemorrhageLiver FailureIschemic Stroke
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.