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    • 1. 发明授权
    • System for blood flow velocity determination using MR imaging
    • 使用MR成像进行血流速度测定的系统
    • US08487613B2
    • 2013-07-16
    • US12951104
    • 2010-11-22
    • Gary McNealChristopher GlielmiPeter Weale
    • Gary McNealChristopher GlielmiPeter Weale
    • G01R33/20G01V3/00
    • G01R33/56316
    • A system improves accuracy of blood flow peak velocity measurements as well as the speed and precision of an MR data acquisition workflow. A system for blood flow velocity determination in MR imaging comprises an MR imaging system. The MR imaging system acquires a three dimensional (3D) MR imaging dataset of a patient anatomical volume of interest and a one dimensional (1D) MR imaging dataset within the volume of interest automatically aligned in response to 3D vector directional information. An image data processor derives the 3D vector directional information by, deriving velocity magnitude data using the acquired 3D MR imaging dataset, identifying maximum velocity data using the derived velocity magnitude data and transforming the identified maximum velocity data to provide the 3D vector directional information. A calculation processor uses the acquired 1D MR imaging dataset to calculate a blood flow velocity in a direction determined by the 3D vector directional information.
    • 系统提高血流峰值速度测量的精度,以及MR数据采集工作流程的速度和精度。 MR成像中血液流速测定系统包括MR成像系统。 MR成像系统获取感兴趣的患者解剖体积的三维(3D)MR成像数据集,以及响应于3D矢量方向信息自动对齐的感兴趣体积内的一维(1D)MR成像数据集。 图像数据处理器通过使用获取的3D MR成像数据集导出速度幅度数据,使用导出的速度幅度数据识别最大速度数据并变换所识别的最大速度数据以提供3D矢量方向信息来导出3D矢量方向信息。 计算处理器使用获取的1D MR成像数据集来计算由3D矢量方向信息确定的方向上的血流速度。
    • 2. 发明申请
    • System for Blood Flow Velocity Determination using MR Imaging
    • 使用MR成像进行血流速度测定的系统
    • US20110175608A1
    • 2011-07-21
    • US12951104
    • 2010-11-22
    • Gary McNealChristopher GlielmiPeter Weale
    • Gary McNealChristopher GlielmiPeter Weale
    • G01R33/48
    • G01R33/56316
    • A system improves accuracy of blood flow peak velocity measurements as well as the speed and precision of an MR data acquisition workflow. A system for blood flow velocity determination in MR imaging comprises an MR imaging system. The MR imaging system acquires a three dimensional (3D) MR imaging dataset of a patient anatomical volume of interest and a one dimensional (1D) MR imaging dataset within the volume of interest automatically aligned in response to 3D vector directional information. An image data processor derives the 3D vector directional information by, deriving velocity magnitude data using the acquired 3D MR imaging dataset, identifying maximum velocity data using the derived velocity magnitude data and transforming the identified maximum velocity data to provide the 3D vector directional information. A calculation processor uses the acquired 1D MR imaging dataset to calculate a blood flow velocity in a direction determined by the 3D vector directional information.
    • 系统提高血流峰值速度测量的精度,以及MR数据采集工作流程的速度和精度。 MR成像中血液流速测定系统包括MR成像系统。 MR成像系统获取感兴趣的患者解剖体积的三维(3D)MR成像数据集,以及响应于3D矢量方向信息自动对齐的感兴趣体积内的一维(1D)MR成像数据集。 图像数据处理器通过使用获取的3D MR成像数据集导出速度幅度数据,使用导出的速度幅度数据识别最大速度数据并变换所识别的最大速度数据以提供3D矢量方向信息来导出3D矢量方向信息。 计算处理器使用获取的1D MR成像数据集来计算由3D矢量方向信息确定的方向上的血流速度。