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    Experimental investigation into radar-based central blood pressure estimation

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    1249318.pdf (1.922Mb)
    Date
    2015
    Author
    Solberg, Lars Erik
    Aardal, Øyvind
    Berger, Tor
    Balasingham, Ilangko
    Fosse, Erik
    Hamran, Svein-Erik
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    Abstract
    To assess whether radar technology can be used for monitoring blood pressure via information from the aorta, two experiments were performed: (i) measurements on a phantom model and (ii) acquisitions on a human subject for in vivo experiments. A linear dependency of phase on radius in the radar echoes in the phantom model showed that the information regarding the radius of a circular, cylindrical object depended on the clutter environment: in a low-clutter case two distinct reflections were identified, whereas in the high-clutter case it was possible to extract a proxy. Radar echoes from antennas strapped to the back of a human subject showed a clear signature from a discernible, distinct reflector believed to be the aorta. However, as for the high-clutter case, only a proxy for aortic radius is available as basis for estimation, which is most likely coupled with aortic displacements.
    URI
    https://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/472
    DOI
    10.1049/iet-rsn.2014.0206
    Description
    Solberg, Lars Erik; Aardal, Øyvind; Berger, Tor; Balasingham, Ilangko; Fosse, Erik; Hamran, Svein-Erik. Experimental investigation into radar-based central blood pressure estimation. IET radar, sonar & navigation 2015 ;Volum 9.(2) s. 145-153
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