公开(公告)号：US08022701B2

公开(公告)日：2011-09-20

申请号：US12337388

申请日：2008-12-17

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

IPC分类号： G01V3/00

CPC分类号： G01R33/4835 ,  G01R33/446 ,  G01R33/4822 ,  G01R33/4836 ,  G01R33/54 ,  G01R33/543 ,  G01R33/5615

摘要： Provided is a method for simultaneously acquiring magnetic resonance slices/slabs of a subject. The method comprises steps as follows. First, apply one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection magnetic field gradient so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously. Second, apply a spatial encoding magnetic field gradient. Third, apply a slice/slab separation magnetic field gradient so as to separate the at least two slices/slabs. The method according to the present invention can be used to acquire data for simultaneously reconstructing multiple slices/slabs. The method is compatible with existing MRI systems.

摘要翻译： 提供了一种用于同时获取被检体的磁共振切片/板的方法。 该方法包括以下步骤。 首先，应用一个或多于一个RF脉冲，其携带至少两个频率分量，以及切片/平板选择磁场梯度，使得分别对应于至少两个频率分量的被摄体的至少两个切片/平板被激发 同时。 二，应用空间编码磁场梯度。 第三，应用切片/平板分离磁场梯度，以分离至少两个切片/平板。 根据本发明的方法可以用于获取用于同时重建多个切片/平板的数据。 该方法与现有MRI系统兼容。

公开(公告)号：US20100148773A1

公开(公告)日：2010-06-17

申请号：US12370214

申请日：2009-02-12

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

IPC分类号： G01R33/56 ,  G06K9/00

CPC分类号： G01R33/4833 ,  G01R33/446 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/543

摘要： A magnetic resonance imaging (MRI) method is provided, including the steps of generating a wideband RF signal that has a plurality of frequency bands respectively corresponding to a plurality of different kinds of nuclei, to simultaneously excite the different kinds of nuclei, detecting a wideband responsive RF signal that has a plurality of frequency bands respectively emitted by the different kinds of nuclei, and reconstructing magnetic resonance images for the different kinds of nuclei based on the wideband responsive RF signal. An MRI apparatus employing the MRI method is also provided.

摘要翻译： 提供了一种磁共振成像（MRI）方法，包括以下步骤：产生具有分别对应于多个不同种类的核的多个频带的宽带RF信号，以同时激发不同种类的核，检测宽带 响应RF信号具有分别由不同种类的核发射的多个频带，并且基于宽带响应RF信号重建用于不同种类的核的磁共振图像。 还提供了采用MRI方法的MRI装置。

公开(公告)号：US08049496B2

公开(公告)日：2011-11-01

申请号：US12370214

申请日：2009-02-12

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

IPC分类号： G01V3/00

CPC分类号： G01R33/4833 ,  G01R33/446 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/543

摘要： A magnetic resonance imaging (MRI) method is provided, including the steps of generating a wideband RF signal that has a plurality of frequency bands respectively corresponding to a plurality of different kinds of nuclei, to simultaneously excite the different kinds of nuclei, detecting a wideband responsive RF signal that has a plurality of frequency bands respectively emitted by the different kinds of nuclei, and reconstructing magnetic resonance images for the different kinds of nuclei based on the wideband responsive RF signal. An MRI apparatus employing the MRI method is also provided.

摘要翻译： 提供了一种磁共振成像（MRI）方法，包括以下步骤：产生具有分别对应于多个不同种类的核的多个频带的宽带RF信号，以同时激发不同种类的核，检测宽带 响应RF信号具有分别由不同种类的核发射的多个频带，并且基于宽带响应RF信号重建用于不同种类的核的磁共振图像。 还提供了采用MRI方法的MRI装置。

公开(公告)号：US20090278538A1

公开(公告)日：2009-11-12

申请号：US12337388

申请日：2008-12-17

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu ,  Li-Wei Kuo

IPC分类号： G01R33/54

CPC分类号： G01R33/4835 ,  G01R33/446 ,  G01R33/4822 ,  G01R33/4836 ,  G01R33/54 ,  G01R33/543 ,  G01R33/5615

摘要： Provided is a method for simultaneously acquiring magnetic resonance slices/slabs of a subject. The method comprises steps as follows. First, apply one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection magnetic field gradient so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously. Second, apply a spatial encoding magnetic field gradient. Third, apply a slice/slab separation magnetic field gradient so as to separate the at least two slices/slabs. The method according to the present invention can be used to acquire data for simultaneously reconstructing multiple slices/slabs. The method is compatible with existing MRI systems.

摘要翻译： 提供了一种用于同时获取被检体的磁共振切片/板的方法。 该方法包括以下步骤。 首先，应用一个或多于一个RF脉冲，其携带至少两个频率分量，以及切片/平板选择磁场梯度，使得分别对应于至少两个频率分量的被摄体的至少两个切片/平板被激发 同时。 二，应用空间编码磁场梯度。 第三，应用切片/平板分离磁场梯度，以分离至少两个切片/平板。 根据本发明的方法可以用于获取用于同时重建多个切片/平板的数据。 该方法与现有MRI系统兼容。

公开(公告)号：US08692550B2

公开(公告)日：2014-04-08

申请号：US13050715

申请日：2011-03-17

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01R33/44 ,  G01R33/483

CPC分类号： G01R33/4835

摘要： A method for acquiring MRI signals includes: applying one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection gradient to a subject, so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously; applying a plurality of spatial encoding gradients; applying a plurality of separation gradients for separating the at least two slices/slabs; and applying at least one coherent refocusing gradient between the plurality of separation gradients.

摘要翻译： 一种用于获取MRI信号的方法包括：将一个或多于一个的RF脉冲（其携带至少两个频率分量）和切片/平板选择梯度施加到对象，使得被摄体的至少两个切片/平板分别对应于 同时激励至少两个频率分量; 应用多个空间编码梯度; 施加多个用于分离所述至少两个切片/平板的分离梯度; 以及在所述多个分离梯度之间施加至少一个相干重聚焦梯度。

公开(公告)号：US20110254550A1

公开(公告)日：2011-10-20

申请号：US13088557

申请日：2011-04-18

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01R33/48

CPC分类号： G01R33/56341 ,  G01N24/08 ,  G01R33/446 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/543

摘要： A diffusion imaging method is provided. The diffusion imaging method includes performing a plurality of data collection sequences. Each data collection sequence includes applying an excitation radio frequency signal and a selection gradient. The excitation radio frequency signal includes a first set of frequency bands selected to simultaneously excite a first nuclei type in a plurality of cross sections of a subject. Each data collection sequence further includes applying a diffusion gradient during formation of a magnetic resonance signal, applying a spatial encoding gradient during formation of the magnetic resonance signal, and while acquiring the magnetic resonance signal, applying a separation gradient to change a frequency separation between portions of the magnetic resonance signal. The diffusion imaging method further includes computationally determining a diffusion image of each of the plurality of cross sections.

摘要翻译： 提供扩散成像方法。 扩散成像方法包括执行多个数据收集序列。 每个数据收集序列包括施加激发射频信号和选择梯度。 激励射频信号包括被选择以同时激发被摄体的多个横截面中的第一核型的第一组频带。 每个数据收集序列还包括在形成磁共振信号期间施加扩散梯度，在形成磁共振信号期间施加空间编码梯度，并且在获取磁共振信号的同时，施加分离梯度以改变部分之间的频率间隔 的磁共振信号。 扩散成像方法还包括计算确定多个横截面中的每一个的扩散图像。

公开(公告)号：US08773128B2

公开(公告)日：2014-07-08

申请号：US13209479

申请日：2011-08-15

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01V3/00 ,  G01R33/483 ,  G01R33/565

CPC分类号： G01R33/4835 ,  G01R33/5659

摘要： A method and an apparatus for enhancing signals in magnetic resonance imaging are provided. The method includes the following steps. Applying one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection gradient to a subject, so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously. Applying a plurality of spatial encoding gradients and one or more than one separation gradients for separating the at least two slices/slabs. Receiving a plurality of responsive RF signals excited from the subject. The responsive RF signals are restored according to a signal restoration function.

摘要翻译： 提供了用于增强磁共振成像中的信号的方法和装置。 该方法包括以下步骤。 将一个或多于一个的RF脉冲（其携带至少两个频率分量）和切片/平板选择梯度应用于对象，使得分别对应于至少两个频率分量的被摄体的至少两个切片/平板被激发 同时。 应用多个空间编码梯度和一个或多于一个分离梯度以分离至少两个切片/平板。 接收从对象激发的多个响应RF信号。 响应的RF信号根据信号恢复功能恢复。

公开(公告)号：US08664952B2

公开(公告)日：2014-03-04

申请号：US13088557

申请日：2011-04-18

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01V3/00

CPC分类号： G01R33/56341 ,  G01N24/08 ,  G01R33/446 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/543

摘要： A diffusion imaging method is provided. The diffusion imaging method includes performing a plurality of data collection sequences. Each data collection sequence includes applying an excitation radio frequency signal and a selection gradient. The excitation radio frequency signal includes a first set of frequency bands selected to simultaneously excite a first nuclei type in a plurality of cross sections of a subject. Each data collection sequence further includes applying a diffusion gradient during formation of a magnetic resonance signal, applying a spatial encoding gradient during formation of the magnetic resonance signal, and while acquiring the magnetic resonance signal, applying a separation gradient to change a frequency separation between portions of the magnetic resonance signal. The diffusion imaging method further includes computationally determining a diffusion image of each of the plurality of cross sections.

摘要翻译： 提供扩散成像方法。 扩散成像方法包括执行多个数据收集序列。 每个数据收集序列包括施加激发射频信号和选择梯度。 激励射频信号包括被选择以同时激发被摄体的多个横截面中的第一核型的第一组频带。 每个数据采集序列还包括在形成磁共振信号期间施加扩散梯度，在形成磁共振信号期间应用空间编码梯度，并且在获取磁共振信号的同时，施加分离梯度以改变部分之间的频率间隔 的磁共振信号。 扩散成像方法还包括计算确定多个横截面中的每一个的扩散图像。

公开(公告)号：US20120235682A1

公开(公告)日：2012-09-20

申请号：US13050715

申请日：2011-03-17

申请人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng Chen ,  Tzi-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01R33/44

CPC分类号： G01R33/4835

摘要： A method for acquiring MRI signals includes: applying one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection gradient to a subject, so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously; applying a plurality of spatial encoding gradients; applying a plurality of separation gradients for separating the at least two slices/slabs; and applying at least one coherent refocusing gradient between the plurality of separation gradients.

摘要翻译： 一种用于获取MRI信号的方法包括：将一个或多于一个的RF脉冲（其携带至少两个频率分量）和切片/平板选择梯度施加到对象，使得被摄体的至少两个切片/平板分别对应于 同时激励至少两个频率分量; 应用多个空间编码梯度; 施加多个用于分离所述至少两个切片/平板的分离梯度; 以及在所述多个分离梯度之间施加至少一个相干重聚焦梯度。

公开(公告)号：US20130043866A1

公开(公告)日：2013-02-21

申请号：US13209479

申请日：2011-08-15

申请人： Jyh-Horng CHEN ,  Tzo-Dar Chiueh ,  Edzer L. Wu

发明人： Jyh-Horng CHEN ,  Tzo-Dar Chiueh ,  Edzer L. Wu

IPC分类号： G01R33/44

CPC分类号： G01R33/4835 ,  G01R33/5659

摘要： A method and an apparatus for enhancing signals in magnetic resonance imaging are provided. The method includes the following steps. Applying one or more than one RF pulse, which carries at least two frequency components, and a slice/slab selection gradient to a subject, so that at least two slices/slabs of the subject respectively corresponding to the at least two frequency components are excited simultaneously. Applying a plurality of spatial encoding gradients and one or more than one separation gradients for separating the at least two slices/slabs. Receiving a plurality of responsive RF signals excited from the subject. The responsive RE signals are restored according to a signal restoration function.

摘要翻译： 提供了用于增强磁共振成像中的信号的方法和装置。 该方法包括以下步骤。 将一个或多于一个的RF脉冲（其携带至少两个频率分量）和切片/平板选择梯度应用于对象，使得分别对应于至少两个频率分量的被摄体的至少两个切片/平板被激发 同时。 应用多个空间编码梯度和一个或多于一个分离梯度以分离至少两个切片/平板。 接收从对象激发的多个响应RF信号。 响应的RE信号根据信号恢复功能恢复。