• Portable MRIs almost as effective as sta

    From ScienceDaily@1:317/3 to All on Wed Apr 20 22:30:50 2022
    Portable MRIs almost as effective as standard MRIs in detecting strokes


    Date:
    April 20, 2022
    Source:
    Yale University
    Summary:
    Portable MRI machines, an emerging technology that makes medical
    imaging accessible even in remote locations, detected ischemic
    strokes, or strokes caused by clotting, in 90% of patients scanned,
    according to a new study.



    FULL STORY ========================================================================== Portable MRI machines, an emerging technology that makes medical imaging accessible even in remote locations, detected ischemic strokes, or
    strokes caused by clotting, in 90% of patients scanned, according to a
    study led by Yale and Harvard researchers.


    ========================================================================== Previous studies have shown that portable MRI devices can also detect
    strokes caused by bleeding in the brain, which are distinct from
    strokes caused by brain clots. The ability of portable MRI machines to differentiate the two types of stroke will help clinicians make crucial life-saving treatment decisions quickly in remote areas for patients
    who lack ready access to major hospitals with expensive stationary MRI machines, the authors say.

    The findings are published April 20 in the journal Science Advances.

    "This is the first systematic evidence you can detect ischemic strokes
    using portable, bedside devices," said Kevin Sheth, a professor of
    neurology and neurosurgery at Yale School of Medicine and co-corresponding author of the study.

    Outcomes for stroke patients improve dramatically the quicker they receive treatment. But access to stationary MRI machines is limited for those
    who live far away from major hospitals or in developing countries. And
    even stroke patients who have access to major hospitals often have to
    wait for scans with stationary MRIs because of heavy demand for the
    equipment. Portable scans can be employed at a patient's bedside, in ambulances, or at clinics in remote areas, Sheth said.

    In addition, quickly differentiating between different types of stroke is crucial for determining proper treatment, the researchers say. Ischemic
    strokes are usually treated with blood thinners. But that course of
    treatment is dangerous for those who experience hemorrhagic strokes or
    strokes in which there is bleeding in the brain.

    In an analysis of portable MRI scans from 50 patients at Yale New Haven Hospital, the Yale and Harvard researchers found that the results largely confirmed ischemic stroke diagnoses made by stationary MRIs. For 45
    of those patients, the portable MRI detected blood clots as small as 4 millimeters in size.

    Sheth and his team have received funding from the National Institutes of
    Health to conduct large-scale studies of portable MRI use in different settings.

    Matthew Yuen from the Yale School of Medicine is lead author of the
    study. W.

    Taylor Kimberly of Harvard and Massachusetts General Hospital is co- corresponding author.


    ========================================================================== Story Source: Materials provided by Yale_University. Original written
    by Bill Hathaway. Note: Content may be edited for style and length.


    ========================================================================== Journal Reference:
    1. Matthew M. Yuen, Anjali M. Prabhat, Mercy H. Mazurek, Isha
    R. Chavva,
    Anna Crawford, Bradley A. Cahn, Rachel Beekman, Jennifer A. Kim,
    Kevin T.

    Gobeske, Nils H. Petersen, Guido J. Falcone, Emily J. Gilmore,
    David Y.

    Hwang, Adam S. Jasne, Hardik Amin, Richa Sharma, Charles Matouk,
    Adrienne Ward, Joseph Schindler, Lauren Sansing, Adam de Havenon,
    Ani Aydin, Charles Wira, Gordon Sze, Matthew S. Rosen, W. Taylor
    Kimberly, Kevin N.

    Sheth. Portable, low-field magnetic resonance imaging enables
    highly accessible and dynamic bedside evaluation of ischemic
    stroke. Science Advances, 2022; 8 (16) DOI: 10.1126/sciadv.abm3952 ==========================================================================

    Link to news story: https://www.sciencedaily.com/releases/2022/04/220420151359.htm

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