Stroke Clinical Trial
— TCDOfficial title:
Non-invasive Monitoring of Blood Flow in the Brain by Using a Wearable Ultrasound Patch
NCT number | NCT06073145 |
Other study ID # | 805201 |
Secondary ID | |
Status | Completed |
Phase | |
First received | |
Last updated | |
Start date | September 27, 2022 |
Est. completion date | April 8, 2024 |
Verified date | April 2024 |
Source | University of California, San Diego |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
The main objective of this research is to measure the Doppler signal by the ultrasonic patch. Blood flow measurement is critical for vasospasm, stroke, and embolism monitoring on patients in the ICU or understanding the neurovascular coupling on different subjects. Currently, A conventional transcranial Doppler (TCD) probe is widely used for these applications. A headset design must be applied and fixed on the participants to obtain stable blood flow spectra. However, the TCD headset is operator dependent. The operator needs to be a trained expert and hold the ultrasound probe to get accurate blood flow velocity information. The stretchable and wearable non-invasive ultrasonic patch can not only free the operator's hands but can also provide long-term continuous monitoring, which is not possible by using the current operator-dependent ultrasound machine. The device can be conformal to the skin and attached to the skin surface.
Status | Completed |
Enrollment | 36 |
Est. completion date | April 8, 2024 |
Est. primary completion date | April 2, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Able to provide informed consent. - In relatively good health with no serious medical conditions. Exclusion Criteria: - Inability to sign the informed consent. - History of the following conditions: Heart attack, low blood pressure, aortic stenosis/carotid artery stenosis (also known as heart valve disease), glaucoma (a group of eye conditions that damage the optic nerve) or retinopathy (a disease of the eye retina). |
Country | Name | City | State |
---|---|---|---|
United States | Structural and Materials Engineering (SME) building Room 310 | San Diego | California |
Lead Sponsor | Collaborator |
---|---|
University of California, San Diego |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Device comparison to standard monitoring (conventional transcranial Doppler) | Clinical feasibility of the measurements from the non-invasive ultrasound patch in comparison to a conventional transcranial Doppler probe on 60 participants. Specifically, the blood flow specturm of different arterial segments including middle cerebral artery, anterior cerebral artery, posterior cerebral artery, vertebral artery, basal artery, internal carotid artery, and ophthalmic artery will be measured by the wearable ultrasound patch and the conventional transcranial Doppler probe. The agreement of these two device on peak systolic velocity, mean flow velocity, and end diastolic velocity of the measurements will be evaulated using the Bland-Altman plot. | 1.5 years |
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