公开(公告)号：US10163231B2

公开(公告)日：2018-12-25

申请号：US15248414

申请日：2016-08-26

申请人： Toshiba Medical Systems Corporation

发明人： Kanako Saito ,  Hidenori Takeshima

IPC分类号： G06T11/00 ,  G01R33/48 ,  G06K9/62 ,  G01R33/565 ,  G01R33/561

摘要： A magnetic resonance (MR) imaging apparatus of embodiments includes processing circuitry. The processing circuitry generates a third k-space data group including a first k-space data group and a second k-space data group, by adding the second k-space data group that is arranged in a second range adjacent to a first range, to the first k-space data group that is arranged in the first range and that is undersampled along at least one of the axes in k-space as well as in any axis that is different from the axes in the k-space. The processing circuitry generates an MR image group by performing a reconstruction process on the third k-space data group.

公开(公告)号：US11016154B2

公开(公告)日：2021-05-25

申请号：US15222407

申请日：2016-07-28

申请人： Toshiba Medical Systems Corporation

发明人： Hidenori Takeshima ,  Kanako Saito

IPC分类号： G01R33/48 ,  G01R33/56 ,  G01R33/385 ,  G01R33/561

摘要： A magnetic resonance imaging apparatus according to an embodiment includes a processor. The processor acquires a plurality of pieces of k-space data with undersampling in at least one of axes of k-space and in a certain axis different from the axes of k-space. The processor rearranges the pieces of k-space data into a second order different from a first order in which the pieces of k-space data are acquired. The processor performs a reconstruction process on a rearranged k-space data group to generate an image group.

公开(公告)号：US20170045598A1

公开(公告)日：2017-02-16

申请号：US15222407

申请日：2016-07-28

申请人： Toshiba Medical Systems Corporation

发明人： Hidenori TAKESHIMA ,  Kanako Saito

IPC分类号： G01R33/48 ,  G01R33/385 ,  G01R33/561 ,  G01R33/56

CPC分类号： G01R33/4818 ,  G01R33/385 ,  G01R33/5608 ,  G01R33/5611

摘要： A magnetic resonance imaging apparatus according to an embodiment includes a processor. The processor acquires a plurality of pieces of k-space data with undersampling in at least one of axes of k-space and in a certain axis different from the axes of k-space. The processor rearranges the pieces of k-space data into a second order different from a first order in which the pieces of k-space data are acquired. The processor performs a reconstruction process on a rearranged k-space data group to generate an image group.

摘要翻译： 根据实施例的磁共振成像装置包括处理器。 处理器在k空间的轴和与k空间的轴不同的特定轴中的至少一个轴中采用欠采样获取多个k空间数据。 处理器将k空间数据重新排列成与获取k个空间数据的第一个顺序不同的第二个顺序。 处理器对重新排列的k空间数据组执行重建处理，以生成图像组。

公开(公告)号：US10955505B2

公开(公告)日：2021-03-23

申请号：US15351886

申请日：2016-11-15

申请人： Toshiba Medical Systems Corporation

发明人： Kanako Saito ,  Hidenori Takeshima

IPC分类号： G01R33/561 ,  G01R33/563 ,  G01R33/56 ,  G01R33/48

摘要： A magnetic resonance imaging apparatus according to an embodiment includes sequence controlling circuitry and processing circuitry. The sequence controlling circuitry is configured to acquire k-space data by executing a pulse sequence while performing undersampling. The processing circuitry is configured to generate an output target image by generating a folded image by applying a Fourier transform to the k-space data and further unfolding the folded image by performing a process that uses a regularization term. The processing circuitry applies a weight to the regularization term on the basis of whether or not each of the pixels in the output target image is included in an observation target region.

公开(公告)号：US10591567B2

公开(公告)日：2020-03-17

申请号：US14835077

申请日：2015-08-25

申请人： TOSHIBA MEDICAL SYSTEMS CORPORATION

发明人： Kanako Saito ,  Hidenori Takeshima

IPC分类号： G01R33/563 ,  G01R33/56

摘要： An image processing apparatus according to an embodiment includes conversion circuitry, magnitude image generating circuitry and phase image generating circuitry. The conversion circuitry is configured to convert time-series k-space data into first time-series x-space data, the x-space representing a spatial position. The magnitude image generating circuitry is configured to generate a magnitude image from second time-series x-space data, the second time-series x-space data being acquired by applying a first filter to the first time-series x-space data. The phase image generating circuitry is configured to generate a phase image from third time-series x-space data, the third time-series x-space data being acquired by applying, to the first time-series x-space data, a second filter that is different from the first filter.