• resonance sonomanometry

    From JAB@21:1/5 to All on Sat Aug 10 21:40:23 2024
    Caltech Team Develops First Noninvasive Method to Continually Measure
    True Blood Pressure

    Solving a decades-old problem, a multidisciplinary team of Caltech
    researchers has figured out a method to noninvasively and continually
    measure blood pressure anywhere on the body with next to no disruption
    to the patient. A device based on the new technique holds the promise
    to enable better vital-sign monitoring at home, in hospitals, and
    possibly even in remote locations where resources are limited.

    The new patented technique, called resonance sonomanometry, uses sound
    waves to gently stimulate resonance in an artery and then uses
    ultrasound imaging to measure the artery's resonance frequency,
    arriving at a true measurement of blood pressure. In a small clinical
    study, the device, which gives patients a gentle buzzing sensation on
    the skin, produced results akin to those obtained using the
    standard-of-care blood pressure cuff.

    "We ended up with a device that is able to measure the absolute blood pressure--not only the systolic and diastolic numbers that we are used
    to getting from blood pressure cuffs--but the full waveform," says
    Yaser Abu-Mostafa (PhD '83), professor of electrical engineering and
    computer science and one of the authors of a new paper describing the
    technique and device in the journal PNAS Nexus. "With this device you
    can measure blood pressure continuously and in different sites on the
    body, giving you much more information about the blood pressure of a
    person."

    https://www.caltech.edu/about/news/caltech-team-develops-first-noninvasive-method-to-continually-measure-true-blood-pressure

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