In-Vivo High Dynamic Range Vector Flow Imaging

Carlos Armando Villagómez Hoyos, Matthias Bo Stuart, Jørgen Arendt Jensen

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    Abstract

    Current vector flow systems are limited in their detectable range of blood flow velocities. Previous work on phantoms has shown that the velocity range can be extended using synthetic aperture directional beamforming combined with an adaptive multi-lag approach. This paper presents a first invivo example with a high dynamic velocity range. Velocities with an order of magnitude apart are detected on the femoral artery of a 41 years old healthy individual. Three distinct heart cycles are captured during a 3 secs acquisition. The estimated vector velocities are compared against each other within the heart cycle. The relative standard deviation of the measured velocity magnitude between the three peak systoles was found to be 5.11% with a standard deviation on the detected angle of 1.06◦ . In the diastole, it was 1.46% and 6.18◦ , respectively. Results proves that the method is able to estimate flow in-vivo and provide quantitative results in a high dynamic velocity range. Providing velocity measurements during the whole cardiac cycle for both arteries and veins
    Original languageEnglish
    Title of host publicationProceedings of IEEE International Ultrasonics Symposium
    Number of pages4
    PublisherIEEE
    Publication date2015
    ISBN (Print)9781479981823
    DOIs
    Publication statusPublished - 2015
    Event2015 IEEE International Ultrasonics Symposium - Taipei, Taiwan, Province of China
    Duration: 21 Oct 201524 Oct 2015
    https://ieeexplore.ieee.org/xpl/conhome/7315052/proceeding

    Conference

    Conference2015 IEEE International Ultrasonics Symposium
    Country/TerritoryTaiwan, Province of China
    CityTaipei
    Period21/10/201524/10/2015
    Internet address

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