Invention Grant
US08150491B2 Method for accelerating data acquisition in dynamic magnetic resonance measurements (MRT) using parallel imaging
有权
使用并行成像在动态磁共振测量(MRT)中加速数据采集的方法
- Patent Title: Method for accelerating data acquisition in dynamic magnetic resonance measurements (MRT) using parallel imaging
- Patent Title (中): 使用并行成像在动态磁共振测量(MRT)中加速数据采集的方法
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Application No.: US11954428Application Date: 2007-12-12
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Publication No.: US08150491B2Publication Date: 2012-04-03
- Inventor: Bernd Jung , Peter Ullmann
- Applicant: Bernd Jung , Peter Ullmann
- Applicant Address: DE Freiburg
- Assignee: Universitaetsklinikum Freiburg
- Current Assignee: Universitaetsklinikum Freiburg
- Current Assignee Address: DE Freiburg
- Agent Paul Vincent
- Priority: DE102007015040 20070329
- Main IPC: A61B5/05
- IPC: A61B5/05

Abstract:
A method for time-resolved imaging of N-dimensional magnetic resonance (=MR) with the following steps: Acquisition of MR signals from a sample volume by parallel imaging, wherein N-dimensional data matrices (M1, M2, . . . MNt) in k-space is acquired undersampled from each receiver coil, wherein the acquisition of the MR signals is performed according to an acquisition scheme that is periodic over time and describes the time sequence of the undersampled data matrices (M1, M2, . . . Mn) and reconstruction of missing data points (FP) of the acquisition scheme using a set of coil weighting factors (CW, ) and using N+1-dimensional reconstruction kernels (RK, RK′ RK″) is characterized in that reconstruction of the missing data points (FP) is performed using a single reconstruction geometry, wherein each reconstruction kernel comprises an (N+1)-dimensional target area (TB), wherein all non-acquired data points (TP) are reconstructed within the associated target area (TB) using each reconstruction kernel (RK, RK′ RK″), and wherein the target area (TB) exhibits at least the extent (nR×mR) in the ky-t plane of the acquisition scheme. This can shorten the computation time for reconstruction and reduce reconstruction artifacts and optimize the signal-to-noise ratio.
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