PDF(Pubmed)
Abstract：
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. The 3C-vUS theory is first derived and validated with numerical simulations and phantom experiments. The in vivo testing results show that 3C-vUS can accurately measure the blood flow 3D-velocity-components of the human carotid artery at arbitrary probe-to-vessel angles throughout the cardiac cycle. With such capability, the 3C-vUS will alleviate the requirement of operators and promote disease screening for blood flow-related disorders.
摘要：
超声测速已广泛用于血流成像。然而,当使用1D换能器阵列时,流量测量被约束以解析平面内2D流量分量。在这项工作中,提出了一种基于超声散斑去相关分析的测速技术（3C-vUS），用于使用1D换能器阵列进行3D速度分量测量。首先通过数值模拟和体模实验推导并验证了3C-vUS理论。体内测试结果表明，3C-vUS可以在整个心动周期中以任意探头到血管的角度准确地测量人颈动脉的血流3D速度分量。有了这样的能力,3C-vUS将减轻操作人员的需求,并促进血流相关疾病的筛查.
