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Digital orbitoplethysmograph: A new device to study the regional cerebral circulation using extraorbital plethysmography

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11150%2F20%3A10401552" target="_blank" >RIV/00216208:11150/20:10401552 - isvavai.cz</a>

  • Alternative codes found

    RIV/00179906:_____/20:10401552

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Mssr56e._i" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Mssr56e._i</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jneumeth.2019.108459" target="_blank" >10.1016/j.jneumeth.2019.108459</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Digital orbitoplethysmograph: A new device to study the regional cerebral circulation using extraorbital plethysmography

  • Original language description

    Background: Noninvasive diagnostic methods utilizing pulse wave measurements on the surface of the head are an important tool in diagnosing various types of cerebrovascular disease. The measurement of extraorbital pressure fluctuations reflects intraocular and intracranial pressure changes and can be used to estimate pressure changes in intracranial arteries and the collateral circulation. New Method: In this paper, we describe our patented (CZ 305757) digital device for noninvasive measuring and monitoring of orbital movements using pressure detection. We conducted preclinical tests (126 measurements on 42 volunteers) to evaluate the practical capabilities of our device. Two human experts visually assessed the quality of the pressure pulsation and discriminability among various test conditions (specifically, subject lying, sitting, and the Matas carotid occlusion test). Results: The results showed that our device provided clinically relevant outcomes with a sufficient level of detail of the pulse wave and a high reliability (not less than 85%) in all clinically relevant situations. It was possible to record the effect of the Matas carotid occlusion test. Comparison with Existing Method(s): Our fully noninvasive, lightweight (185 g), portable, and wireless device provides a considerably cheaper alternative to the current diagnostic methods (e.g., transcranial ultrasound, X-ray, or MRI angiography) for specific assessment of cerebral circulation. Within a minute, it can detect the Willis circle integrity and thus eliminate the potential risks associated with the Matas test using standard EEG. Conclusions: Our device represents an improvement and a valid alternative to the current methods diagnosing regional cerebral circulation.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10610 - Biophysics

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Neuroscience Methods

  • ISSN

    0165-0270

  • e-ISSN

  • Volume of the periodical

    329

  • Issue of the periodical within the volume

    JAN

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    10

  • Pages from-to

    108459

  • UT code for WoS article

    000499768800002

  • EID of the result in the Scopus database

    2-s2.0-85073222851