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Dynamic contrast enhanced magnetic resonance imaging with high spatial-temporal resolution

机译:具有高时空分辨率的动态对比度增强磁共振成像

摘要

A method of providing dynamic magnetic resonance imaging (MRI) of an object in an MRI system is provided. A magnetic resonance excitation from the MRI system is applied to the object. A magnetic resonance signal is read out through k-space for a plurality of regions with two or three spatial dimensions and a temporal dimension, wherein the read out is pseudo-randomly undersampled in the spatial frequency dimensions and the temporal dimension providing k-space data that is pseudo-randomly undersampled in the spatial frequency dimensions and the temporal dimension. The readout data is used to create a sequential series of spatial frequency data sets by generating interpolated data in the spatial frequency dimensions and the temporal dimension. The sequential series of spatial frequency data sets is used to create temporally resolved spatial images.
机译:提供了一种在MRI系统中提供对象的动态磁共振成像(MRI)的方法。来自MRI系统的磁共振激励被施加到对象。通过k空间针对具有两个或三个空间维度和一个时间维度的多个区域读出磁共振信号,其中在空间频率维度上对读出的信号进行伪随机欠采样,并且该时间维度提供k空间数据即在空间频率维度和时间维度上伪随机地欠采样。所读出的数据用于通过在空间频率维度和时间维度上生成内插数据来创建一系列空间频率数据集。空间频率数据集的顺序序列用于创建时间分辨的空间图像。

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