公开(公告)号：US07840045B2

公开(公告)日：2010-11-23

申请号：US11737527

申请日：2007-04-19

申请人： Junyu Guo ,  Eugene G. Kholmovski ,  Ling Zhang ,  Dennis L. Parker

发明人： Junyu Guo ,  Eugene G. Kholmovski ,  Ling Zhang ,  Dennis L. Parker

IPC分类号： G06K9/00

CPC分类号： G01R33/5611

摘要： A method of performing parallel image reconstruction of undersampled image data in k-space. A defined partitioning of a k-space region into a plurality of segments is received. A segment of the plurality of segments is identified wherein data is sampled at less than a Nyquist rate. First imaging data is sampled at the Nyquist rate. A reconstruction coefficient is calculated for at least a portion of the identified segment using the sampled first imaging data. Second imaging data is sampled at less than the Nyquist rate. A value for a missing k-space sample in the identified segment is predicted using the calculated reconstruction coefficient and the sampled second imaging data. An image of the image area is defined using the predicted value and the received second dataset.

摘要翻译： 在k空间中执行欠采样图像数据的并行图像重构的方法。 接收将k空间区域定义为多个段的划分。 识别多个片段中的片段，其中以小于奈奎斯特速率采样数据。 以奈奎斯特速率对第一成像数据进行采样。 使用所采样的第一成像数据，对识别出的片段的至少一部分计算重建系数。 第二个成像数据以低于奈奎斯特速率进行采样。 使用计算的重建系数和采样的第二成像数据来预测识别的段中缺少的k空间样本的值。 使用预测值和接收到的第二数据集来定义图像区域的图像。

公开(公告)号：US20080175458A1

公开(公告)日：2008-07-24

申请号：US11737527

申请日：2007-04-19

申请人： Junyu Guo ,  Eugene G. Kholmovski ,  Ling Zhang ,  Dennis L. Parker

发明人： Junyu Guo ,  Eugene G. Kholmovski ,  Ling Zhang ,  Dennis L. Parker

IPC分类号： A61B5/00

CPC分类号： G01R33/5611

摘要： A method of performing parallel image reconstruction of undersampled image data in k-space. A defined partitioning of a k-space region into a plurality of segments is received. A segment of the plurality of segments is identified wherein data is sampled at less than a Nyquist rate. First imaging data is sampled at the Nyquist rate. A reconstruction coefficient is calculated for at least a portion of the identified segment using the sampled first imaging data. Second imaging data is sampled at less than the Nyquist rate. A value for a missing k-space sample in the identified segment is predicted using the calculated reconstruction coefficient and the sampled second imaging data. An image of the image area is defined using the predicted value and the received second dataset.

摘要翻译： 在k空间中执行欠采样图像数据的并行图像重构的方法。 接收将k空间区域定义为多个段的划分。 识别多个片段中的片段，其中以小于奈奎斯特速率采样数据。 以奈奎斯特速率对第一成像数据进行采样。 使用所采样的第一成像数据，对识别出的片段的至少一部分计算重建系数。 第二个成像数据以低于奈奎斯特速率进行采样。 使用计算的重建系数和采样的第二成像数据来预测识别的段中缺少的k空间样本的值。 使用预测值和接收到的第二数据集来定义图像区域的图像。