公开(公告)号：US09291688B2

公开(公告)日：2016-03-22

申请号：US13781338

申请日：2013-02-28

申请人： Weng Ming Li ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

发明人： Weng Ming Li ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01R33/34 ,  G01R33/3415 ,  G01R33/36

CPC分类号： G01R33/34092 ,  G01R33/3415 ,  G01R33/3664

摘要： An RF coil device and an MRI apparatus allowing a connection relationship between input RF channels and output RF channels to be controlled by a smaller number of switch elements are provided. The RF coil device includes multiple coil segments and a multi-selection switch. Input terminals of the multi-selection switch are each connected to a different coil segment. An output terminal of the multi-selection switch leads to an RF output channel. A control terminal of the multi-selection switch is used to receive a control signal so as to select a coil segment for connection to the output terminal. Multiple coil segments connected to the input terminals are not in consecutive positions, and the number of coil segments by which any two of the multiple coil segments are spaced apart is no fewer than the maximum number of coil segments required for one MRI imaging less 1. The MRI apparatus includes the RF coil device.

摘要翻译： 提供了允许输入RF信道和输出RF信道之间的连接关系由较少数量的开关元件控制的RF线圈装置和MRI装置。 RF线圈装置包括多个线圈段和多选择开关。 多选择开关的输入端子各自连接到不同的线圈段。 多选择开关的输出端子通向RF输出通道。 多选择开关的控制端子用于接收控制信号，以选择用于连接到输出端子的线圈段。 连接到输入端子的多个线圈段不在连续位置，并且多个线圈段中的任何两个间隔开的线圈段的数量不小于一个MRI成像所需的最大线圈段数少1。 MRI装置包括RF线圈装置。

公开(公告)号：US20130221967A1

公开(公告)日：2013-08-29

申请号：US13781338

申请日：2013-02-28

申请人： Weng Ming Li ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

发明人： Weng Ming Li ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01R33/34

CPC分类号： G01R33/34092 ,  G01R33/3415 ,  G01R33/3664

摘要： An RF coil device and an MM apparatus allowing a connection relationship between input RF channels and output RF channels to be controlled by a smaller number of switch elements are provided. The RF coil device includes multiple coil segments and a multi-selection switch. Input terminals of the multi-selection switch are each connected to a different coil segment. An output terminal of the multi-selection switch leads to an RF output channel. A control terminal of the multi-selection switch is used to receive a control signal so as to select a coil segment for connection to the output terminal. Multiple coil segments connected to the input terminals are not in consecutive positions, and the number of coil segments by which any two of the multiple coil segments are spaced apart is no fewer than the maximum number of coil segments required for one MRI imaging less 1. The MRI apparatus includes the RF coil device.

摘要翻译： 提供了允许由输入RF信道和输出RF信道之间的连接关系由较少数量的开关元件控制的RF线圈装置和MM装置。 RF线圈装置包括多个线圈段和多选择开关。 多选择开关的输入端子各自连接到不同的线圈段。 多选择开关的输出端子通向RF输出通道。 多选择开关的控制端子用于接收控制信号，以选择用于连接到输出端子的线圈段。 连接到输入端子的多个线圈段不在连续位置，并且多个线圈段中的任何两个间隔开的线圈段的数量不小于一个MRI成像所需的最大线圈段数少1。 MRI装置包括RF线圈装置。

公开(公告)号：US20130134980A1

公开(公告)日：2013-05-30

申请号：US13689751

申请日：2012-11-29

申请人： Markus Vester ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

发明人： Markus Vester ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01R33/54

CPC分类号： G01R33/54 ,  G01R33/3415 ,  G01R33/3621

摘要： A method and system for receiving magnetic resonance signals, and a magnetic resonance imaging system are provided. The method includes dividing coil units in a receiving coil array into different coil unit groups. For each of the coil unit groups, correlations are established between carrier frequencies and the signals received by each coil unit in the coil unit group. Low noise amplification is performed, and filtering and frequency mixing is performed on the signals received by all the coil units in the coil unit group according to the correlations to obtain intermediate frequency signals borne on the respectively corresponding carrier frequencies of an identical channel. After performing amplification and filtering on the intermediate frequency signals, the intermediate frequency signals are output to an analog-to-digital conversion unit to perform digital sampling so as to obtain digital domain signals.

摘要翻译： 提供一种用于接收磁共振信号的方法和系统，以及磁共振成像系统。 该方法包括将接收线圈阵列中的线圈单元分成不同的线圈单元组。 对于每个线圈单元组，在线圈单元组中的载波频率和每个线圈单元接收的信号之间建立相关性。 执行低噪声放大，并且根据相关性对线圈单元组中的所有线圈单元接收到的信号进行滤波和混频，以获得承载在相同信道的相应载波频率上的中频信号。 在对中频信号执行放大和滤波之后，将中频信号输出到模数转换单元进行数字采样，以获得数字域信号。

公开(公告)号：US09465092B2

公开(公告)日：2016-10-11

申请号：US13689751

申请日：2012-11-29

申请人： Markus Vester ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

发明人： Markus Vester ,  Jian Min Wang ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01V3/00 ,  G01R33/54 ,  G01R33/36 ,  G01R33/3415

CPC分类号： G01R33/54 ,  G01R33/3415 ,  G01R33/3621

摘要： A method and system for receiving magnetic resonance signals, and a magnetic resonance imaging system are provided. The method includes dividing coil units in a receiving coil array into different coil unit groups. For each of the coil unit groups, correlations are established between carrier frequencies and the signals received by each coil unit in the coil unit group. Low noise amplification is performed, and filtering and frequency mixing is performed on the signals received by all the coil units in the coil unit group according to the correlations to obtain intermediate frequency signals borne on the respectively corresponding carrier frequencies of an identical channel. After performing amplification and filtering on the intermediate frequency signals, the intermediate frequency signals are output to an analog-to-digital conversion unit to perform digital sampling so as to obtain digital domain signals.

摘要翻译： 提供一种用于接收磁共振信号的方法和系统，以及磁共振成像系统。 该方法包括将接收线圈阵列中的线圈单元分成不同的线圈单元组。 对于每个线圈单元组，在线圈单元组中的载波频率和每个线圈单元接收的信号之间建立相关性。 执行低噪声放大，并且根据相关性对线圈单元组中的所有线圈单元接收到的信号进行滤波和混频，以获得承载在相同信道的相应载波频率上的中频信号。 在对中频信号执行放大和滤波之后，将中频信号输出到模数转换单元进行数字采样，以获得数字域信号。

公开(公告)号：US10126384B2

公开(公告)日：2018-11-13

申请号：US14666535

申请日：2015-03-24

申请人： Guang Bao Dai ,  Lan Wang ,  Zhi Bin Li

发明人： Guang Bao Dai ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01R33/36 ,  G01R33/54

摘要： A receiver of a magnetic resonance imaging system and a magnetic resonance imaging system are provided. The receiver includes a receiving end for receiving an analog magnetic resonance signal from a local coil of the magnetic resonance imaging system, a sending end for sending a digital magnetic resonance signal to an image reconstruction apparatus of the magnetic resonance imaging system, at least two digital processing channels connected to the sending end for digitizing the analog magnetic resonance signal to the digital magnetic resonance signal, and a channel selection unit connected between the digital processing channels and the receiving end for selecting a corresponding digital processing channel from the digital processing channels according to type information about the local coil. The embodiments may be compatible with many types of local coils without re-designing the local coils, which significantly reduces the cost of the system.

公开(公告)号：US20150276899A1

公开(公告)日：2015-10-01

申请号：US14666535

申请日：2015-03-24

申请人： Guang Bao Dai ,  Lan Wang ,  Zhi Bin Li

发明人： Guang Bao Dai ,  Lan Wang ,  Zhi Bin Li

IPC分类号： G01R33/36 ,  G01R33/54

CPC分类号： G01R33/3621 ,  G01R33/3664 ,  G01R33/543

摘要： A receiver of a magnetic resonance imaging system and a magnetic resonance imaging system are provided. The receiver includes a receiving end for receiving an analog magnetic resonance signal from a local coil of the magnetic resonance imaging system, a sending end for sending a digital magnetic resonance signal to an image reconstruction apparatus of the magnetic resonance imaging system, at least two digital processing channels connected to the sending end for digitizing the analog magnetic resonance signal to the digital magnetic resonance signal, and a channel selection unit connected between the digital processing channels and the receiving end for selecting a corresponding digital processing channel from the digital processing channels according to type information about the local coil. The embodiments may be compatible with many types of local coils without re-designing the local coils, which significantly reduces the cost of the system.

摘要翻译： 提供磁共振成像系统和磁共振成像系统的接收器。 接收机包括：接收端，用于从磁共振成像系统的本地线圈接收模拟磁共振信号;发送端，用于将数字磁共振信号发送到磁共振成像系统的图像重建装置;至少两个数字 连接到发送端的处理通道，用于将模拟磁共振信号数字化为数字磁共振信号;以及通道选择单元，连接在数字处理通道与接收端之间，用于根据数字处理通道从数字处理通道中选择相应的数字处理通道 键入有关本地线圈的信息。 这些实施例可以与许多类型的本地线圈兼容，而不需要重新设计本地线圈，这显着降低了系统的成本。

公开(公告)号：US20140019650A1

公开(公告)日：2014-01-16

申请号：US13545833

申请日：2012-07-10

申请人： Zhi Bin Li ,  Zhiwei Wu

发明人： Zhi Bin Li ,  Zhiwei Wu

IPC分类号： G06F5/12

CPC分类号： G06F5/06 ,  G06F13/28 ,  H04L49/90

摘要： Various embodiments of the present invention are related to memory buffers, and in particular to a multi-write bit-fill FIFO to which multiple addresses may be written simultaneously and which fills in bit spaces as data blocks are written.

摘要翻译： 本发明的各种实施例涉及存储器缓冲器，特别涉及可以同时写入多个地址的多写入位填充FIFO，并且在写入数据块时填充位空间。