公开(公告)号：US20220099776A1

公开(公告)日：2022-03-31

申请号：US17038698

申请日：2020-09-30

申请人： GE PRECISION HEALTHCARE LLC ,  The Regents of the University of California

发明人： Florian Wiesinger ,  Ana Beatriz Solana Sanchez ,  Brice Fernandez ,  Peder Larson ,  Andrew Leynes

IPC分类号： G01R33/561 ,  G01R33/56 ,  G01R33/48

摘要： A magnetic resonance (MR) dynamically imaging method is provided. The method includes acquiring a functional MR dataset including frames of k-space datasets, while a functional stimulus is applied to the subject. Acquiring the functional MR dataset includes, acquiring a frame of k-space datasets by setting an orientation as an initial angle, and acquiring a free induction decay (FID) dataset. Acquiring an FID dataset includes applying a sequence of gradients, each gradient of the sequence corresponding to a k-space spoke, wherein the sequence of k-space spokes define a k-space segment having the orientation in a 3D k-space volume. Acquiring a frame of k-space datasets also includes acquiring a gradient echo dataset corresponding to the FID dataset, and updating the orientation as golden angles. The method also includes generating anatomical MR images and functional images based on the functional MR dataset.

公开(公告)号：US11550013B2

公开(公告)日：2023-01-10

申请号：US17038698

申请日：2020-09-30

申请人： GE PRECISION HEALTHCARE LLC ,  The Regents of the University of California

发明人： Florian Wiesinger ,  Ana Beatriz Solana Sanchez ,  Brice Fernandez ,  Peder Larson ,  Andrew Leynes

IPC分类号： G01R33/561 ,  G01R33/48 ,  G01R33/56

摘要： A magnetic resonance (MR) dynamically imaging method is provided. The method includes acquiring a functional MR dataset including frames of k-space datasets, while a functional stimulus is applied to the subject. Acquiring the functional MR dataset includes, acquiring a frame of k-space datasets by setting an orientation as an initial angle, and acquiring a free induction decay (FID) dataset. Acquiring an FID dataset includes applying a sequence of gradients, each gradient of the sequence corresponding to a k-space spoke, wherein the sequence of k-space spokes define a k-space segment having the orientation in a 3D k-space volume. Acquiring a frame of k-space datasets also includes acquiring a gradient echo dataset corresponding to the FID dataset, and updating the orientation as golden angles. The method also includes generating anatomical MR images and functional images based on the functional MR dataset.