Measurement reliability of ultrasonic vector flow mapping

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Other Title
  • 超音波Vector Flow Mappingの計測信頼性
  • チョウオンパ Vector Flow Mapping ノ ケイソク シンライセイ

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Abstract

<p>Ultrasonic vector flow mapping (VFM) is a method to visualize cardiac flow using vectors. In this article, the VFM algorithm estimating the blood flow vector based on ultrasound doppler measurement and a two dimensional mass conservation law (2D flow assumption) for cardiac flow is briefly reviewed. Since the VFM accuracy can be easily degraded due to a violation of the 2D flow assumption in real situations, the VFM accuracy was validated with a heart phantom by comparing it with particle image velocimetry (PIV). Moreover, a novel method, called a posteriori “VFM accuracy estimation (VAE)” which can estimate the VFM uncertainty for each patient, is introduced to make it possible to refine the quality of the VFM-based diagnosis.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 88 (6), 404-407, 2019-06-10

    The Japan Society of Applied Physics

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