- Conditions
- Cerebrovascular Circulation
- Interventions
- Cerebral blood flow
- Diagnostic Test
- Lead sponsor
- University of Missouri-Columbia
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2025
- U.S. locations
- 1
- States / cities
- Columbia, Missouri
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Showing 1–15
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matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Thoracic Aortic Aneurysm, Thoracic Aortic Dissection, Microemboli
- Interventions
- transcranial Doppler ultrasonography (TCD)
- Other
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2026
- U.S. locations
- 2
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Critical Illness, Pediatric Critical Illness, Respiratory Failure, Traumatic Brain Injury, Cardiac Arrest
- Interventions
- Transcranial Doppler
- Device
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 1 Day to 17 Years
- Enrollment
- 125 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Healthy, Carotid Artery Diseases
- Interventions
- Ultrasound imaging, Magnetic Resonance Imaging (MRI), Neurocognitive testing, Transcranial Doppler (TCD), Pulse Wave Doppler
- Device · Other
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years to 89 Years
- Enrollment
- 217 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2025
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Hypoxia, Hypercapnia
- Interventions
- L-NMMA, Ketorolac, Ascorbic Acid, Intravenous Catheter, Transcranial Doppler Ultrasound
- Drug · Procedure
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 18 Years to 45 Years
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Traumatic Brain Injury, Subarachnoid Hemorrhage, Intracerebral Hemorrhage, Liver Failure, Ischemic Stroke
- Interventions
- Transcranial Doppler
- Diagnostic Test
- Lead sponsor
- Emory University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 162 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2025
- U.S. locations
- 3
- States / cities
- Davis, California • San Francisco, California • Atlanta, Georgia
- Conditions
- Insulin Resistance
- Interventions
- Hypercapnia, Transcranial Doppler, Cycle ergometer, Cognitive Tests
- Other · Device
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 15 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke, Acute Ischemic Stroke, Cardioembolic Stroke, Vasogenic Cerebral Edema
- Interventions
- Transcranial Doppler (TCD) examination
- Other
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Concussion
- Interventions
- Not listed
- Lead sponsor
- NeuroChaos Solutions, Inc.
- Industry
- Eligibility
- 13 Years and older
- Enrollment
- 13 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2016
- U.S. locations
- 1
- States / cities
- Austin, Texas
- Conditions
- Embolic Stroke of Undetermined Source, Transient Ischemic Attack, Right-To-Left Atrial Shunt, Patent Foramen Ovale
- Interventions
- NeuralBot Investigational System, Transthoracic Echocardiography (TTE)
- Diagnostic Test
- Lead sponsor
- NeuraSignal Inc dba NovaSignal
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 154 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 7
- States / cities
- Phoenix, Arizona • Portland, Oregon • Chattanooga, Tennessee + 3 more
- Conditions
- Sickle Cell Disease, Sickle Cell Anemia, Stroke, Ischemic, Silent Stroke, Silent Cerebral Infarct, Stroke
- Interventions
- Hydroxyurea therapy per standard care
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 16 Years to 26 Years
- Enrollment
- 250 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2029
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Alzheimer Disease, White Matter Hyperintensities, Dementia, Aging
- Interventions
- Florbetaben F18, Transcranial Doppler
- Radiation · Procedure
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Stroke, Acute Ischemic Stroke
- Interventions
- NovaGuide 2 Intelligent Ultrasound System
- Device
- Lead sponsor
- NeuraSignal Inc dba NovaSignal
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- Chattanooga, Tennessee
- Conditions
- Cerebral Aneurysm, Stroke, Vasospasm, Cerebral, Subarachnoid Hemorrhage, Aneurysmal, Aneurysmal Subarachnoid Hemorrhage, Cerebral Ischemia
- Interventions
- Transcranial Doppler
- Diagnostic Test
- Lead sponsor
- Hackensack Meridian Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 3 participants
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Hackensack, New Jersey
- Conditions
- Reversible Cerebral Vasoconstriction Syndrome
- Interventions
- TCD- cerebral blood flow velocities, Headache pain score, Neurological examination, Repeat Neuroimaging, Nimodipine, Verapamil ER
- Diagnostic Test · Behavioral · Other + 1 more
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2019
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland