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    • 9. 发明授权
    • Medical imaging method and system
    • 医学成像方法与系统
    • US08897855B2
    • 2014-11-25
    • US13671632
    • 2012-11-08
    • Patrick Gross
    • Patrick Gross
    • A61B8/08A61B5/055A61B5/00A61B8/13A61B8/14
    • A61B8/5261A61B5/0035A61B5/055A61B8/13A61B8/14A61B8/485
    • In an imaging procedure, sound pressure is generated by applying ultrasound to the region to be imaged in order to cause a deformation of tissue therein from at least one acquired ultrasound image data set, first data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. At least one magnetic resonance image data set is acquired, from which second data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. The at least one ultrasound image data set and the at least one magnetic resonance image data set are brought into registration with each other by a comparison of the first data and the second data.
    • 在成像过程中,通过对要成像的区域施加超声波以产生来自至少一个获取的超声图像数据集的组织变形的声压,确定以空间分辨率表示变形的第一数据 的组织作为对声压的反应。 获取至少一个磁共振图像数据集,从中确定第二数据,其以空间分辨率表示组织的变形作为对声压的反应。 通过比较第一数据和第二数据,使至少一个超声图像数据组和至少一个磁共振图像数据组彼此对准。
    • 10. 发明申请
    • METHOD AND MAGNETIC RESONANCE APPARATUS TO GENERATE AN ARTIFACT-FREE MAGNETIC RESONANCE IMAGE DATA SET
    • 方法和磁共振装置,用于生成无艺术无磁共振图像数据集
    • US20140091796A1
    • 2014-04-03
    • US14039293
    • 2013-09-27
    • David GrodzkiPatrick Gross
    • David GrodzkiPatrick Gross
    • G01R33/565
    • G01R33/56572G01R33/24
    • In a method and magnetic resonance (MR) system for the creation of an artifact-free image data set of an imaging area located in a measurement volume of the MR system, measurement data are acquired from which an image data is to be reconstructed, with gradients for spatially coding of the measurement data are ramped continuously over time to a strength desired for the acquisition of the measurement data, without abrupt changes in the gradient strength. The actual gradients present in the measurement volume are measured by a field mapping device in the measurement volume of the MR system. The trajectories along which k-space is scanned during the acquisition of the measurement data are calculated on the basis of the measured actual gradients. An artifact-free image data set is reconstructed from the acquired measurement data under consideration of the calculated trajectories, and is displayed and/or stored.
    • 在用于产生位于MR系统的测量体积中的成像区域的无伪影图像数据集的方法和磁共振(MR)系统中,从其重建图像数据获取测量数据, 用于测量数据的空间编码的梯度随时间连续地变化到获取测量数据所需的强度,而梯度强度没有突然变化。 存在于测量体积中的实际梯度通过MR系统的测量体积中的场映射设备来测量。 基于测量的实际梯度计算在采集测量数据期间扫描k空间的轨迹。 考虑所计算的轨迹,从获取的测量数据重建无伪影图像数据集,并显示和/或存储。