Angle-Independent Blood Flow Velocity Measurement with Ultrasound Speckle Decorrelation Analysis.

Precise measurement of the blood flow velocity in major arteries is important for the assessment of circulation dysfunction but challenging when using a one-dimensional (1D) ultrasound transducer array. Current available ultrasound velocimetry methods are susceptible to the probe-to-vessel angle and require the vessels to be well-aligned within the imaging plane of the 1D transducer array. In this study, a novel angle-independent velocimetry (VT-vUS) based on the ultrasound speckle decorrelation analysis of the ultrasound field signal is proposed to measure the blood flow velocity using a conventional 1D ultrasound transducer array.

Ultrasound Speckle Decorrelation Analysis-Based Velocimetry for 3D-Velocity-Components Measurement Using a 1D Transducer Array.

Ultrasound velocimetry has been widely used for blood flow imaging. However, the flow measurements are constrained to resolve the in-plane 2D flow components when using a 1D transducer array. In this work, an ultrasound speckle decorrelation analysis-based velocimetry (3C-vUS) is proposed for 3D velocity components measurement using a 1D transducer array.