公开(公告)号：US20090115418A1

公开(公告)日：2009-05-07

申请号：US12262741

申请日：2008-10-31

申请人： Zeng He He ,  Jian Min Wang ,  Yang Wang

发明人： Zeng He He ,  Jian Min Wang ,  Yang Wang

IPC分类号： G01R33/34

CPC分类号： G01R33/34046 ,  G01R33/34084

摘要： A magnetic resonance coil has an antenna portion for accommodating a body part to be examined, the antenna portion is formed by a number of constituent units connected in series, the positions between various constituent units are relatively movable. By moving the positions between the constituent units, a portion of the area between at least two constituent units overlaps. By increasing or reducing the number of the constituent units, or by adjusting the overlapped area between the constituent units, one pair or a number of pairs of the constituent units are made to overlap completely, so as to achieve the adjustment of the size of the antenna portion to accommodate a body part to be examined, and to make said antenna portion as close as possible to the body part to be examined, so as to obtain a signal with a relatively high signal-to-noise ratio, and to obtain a relatively high imaging quality.

摘要翻译： 磁共振线圈具有用于容纳要检查的身体部位的天线部分，天线部分由串联连接的多个构成单元形成，各个构成单元之间的位置可相对移动。 通过移动构成单元之间的位置，至少两个构成单元之间的区域的一部分重叠。 通过增加或减少构成单元的数量，或者通过调整构成单元之间的重叠区域，使一对或多对构成单元完全重叠，以便实现对 天线部分以容纳待检查的身体部分，并且使得所述天线部分尽可能靠近待检查的身体部分，以获得具有较高信噪比的信号，并且获得 成像质量相对较高。

公开(公告)号：US20080204019A1

公开(公告)日：2008-08-28

申请号：US12037223

申请日：2008-02-26

申请人： Ting Qiang Xue ,  Jian Min Wang ,  Zeng He He ,  Yang Wang

发明人： Ting Qiang Xue ,  Jian Min Wang ,  Zeng He He ,  Yang Wang

IPC分类号： G01R33/48 ,  G01R33/34

CPC分类号： G01R33/34061 ,  G01R33/34053 ,  G01R33/341

摘要： In a high field magnetic resonance imaging apparatus and a method for obtaining signals having a high signal-to-noise ratio with the receiving coil thereof, the apparatus has at least a basic magnet and a receiving coil, the basic magnet generating a basic magnetic field, and the receiving coil being disposed within the basic magnetic field and forming an accommodating cavity. The accommodating cavity of the receiving coil is perpendicular to the direction of the basic magnetic field and is positioned in the field of view of the apparatus. The receiving coil is a loop type coil. The apparatus can further have a bracket for fixing the receiving coil. In the method, a receiving coil is used to receive signals in a magnetic field, wherein the receiving coil is perpendicular to the direction of the magnetic field. By using the apparatus and the corresponding method since the receiving coil can have a loop type design, the signal-to-noise ratio is increased. Moreover, the receiving coil can be disposed at a position closer to the center of the field of view, so that the imaging quality is improved.

摘要翻译： 在高场磁共振成像装置和用于获得与其接收线圈相比具有高信噪比的信号的方法中，该装置至少具有基本磁体和接收线圈，该基本磁体产生基本磁场 并且接收线圈设置在基本磁场内并形成容纳腔。 接收线圈的容纳腔垂直于基本磁场的方向并且位于设备的视场中。 接收线圈是环形线圈。 该装置还可以具有用于固定接收线圈的支架。 在该方法中，接收线圈用于在磁场中接收信号，其中接收线圈垂直于磁场的方向。 通过使用该装置和相应的方法，因为接收线圈可以具有环路类型设计，所以信噪比增加。 此外，接收线圈可以设置在更靠近视场中心的位置，从而提高了成像质量。

公开(公告)号：US20080180103A1

公开(公告)日：2008-07-31

申请号：US12018923

申请日：2008-01-24

申请人： Ting Qiang Xue ,  Jian Min Wang ,  Yan Hong Chen

发明人： Ting Qiang Xue ,  Jian Min Wang ,  Yan Hong Chen

IPC分类号： G01R33/32

CPC分类号： G01R33/3642 ,  G01R33/307 ,  G01R33/34007 ,  G01R33/341

摘要： A mobile positioning device for an MRI inductively coupled coil, has at least one pair of coupled coils which are coupled with each other for transmitting signals, wherein one of the at least one pair of coupled coils is deployed on a surface of a patient's bed. A moveable platform is provided that can move in a direction parallel to the patient's bed, and the other one of the at least one pair of coupled coils is deployed on the moveable platform opposite to the coupled coil deployed on the patient's bed. The device can be driven by a motor or a spring. When the patient's bed needs to be placed at different positions for an examination, the coupled coil deployed on the moveable platform can be aligned completely and in parallel to the coupled coil fixed on the patient's bed by moving the moveable platform, so as to achieve the best coupling effects.

摘要翻译： 用于MRI电感耦合线圈的移动定位装置具有至少一对耦合的线圈，它们彼此耦合以传输信号，其中所述至少一对耦合线圈中的一个被布置在患者床的表面上。 提供可移动的平台，其可以平行于患者床的方向移动，并且所述至少一对耦合线圈中的另一个耦合线圈展开在与部署在患者床上的耦合线圈相对的可移动平台上。 该装置可以由电动机或弹簧驱动。 当患者的床需要放置在不同的位置进行检查时，可移动可移动平台的部分在可移动平台上的耦合线圈可以完全对准并且平行于固定在患者床上的耦合线圈，以便实现 最佳耦合效应。

公开(公告)号：US20080042651A1

公开(公告)日：2008-02-21

申请号：US11839756

申请日：2007-08-16

申请人： Zeng He He ,  Markus Vester ,  Jian Min Wang ,  Yang Wang

发明人： Zeng He He ,  Markus Vester ,  Jian Min Wang ,  Yang Wang

IPC分类号： H03H7/00 ,  G01R33/32

CPC分类号： G01R33/3621 ,  G01R33/3685 ,  G01R33/4814 ,  H03H7/0115

摘要： A HIFU compatible receiving coil for MRI radio-frequency signals has an antenna and an amplifier connected to each other, each for receiving and amplifying MRI radio-frequency signals, and a filter positioned in front of the amplifier for filtering the HIFU low frequency signals received by the antenna at the same time as receiving the MRI radio-frequency signals. In a method for receiving the MRI radio-frequency signals and then for amplifying the same, the received MRI radio-frequency signals are filtered before being amplified, so as to filter out the HIFU signals received at the same time as the MRI radio-frequency signals. By this filtering, the HIFU signals among the HIFU signals and MRI radio-frequency signals simultaneously received by the antenna are filtered out at the same time as the HIFU treatment, and the remaining MRI radio-frequency signals are connected into the MRI system after being amplified by the amplifier for real-time imaging. Since the amplifier only processes the MRI radio-frequency signals, it can stay in a normal linear working status to ensure the normal proceeding of the subsequent real-time imaging.

摘要翻译： 用于MRI射频信号的HIFU兼容接收线圈具有彼此连接的天线和放大器，用于接收和放大MRI射频信号，以及位于放大器前面的滤波器，用于对接收到的HIFU低频信号进行滤波 通过天线同时接收MRI射频信号。 在接收MRI射频信号然后进行放大的方法中，接收的MRI射频信号在被放大之前进行滤波，以便滤出与MRI射频同时接收的HIFU信号 信号。 通过这种滤波，天线同时接收的HIFU信号和MRI射频信号之间的HIFU信号在与HIFU处理同时被滤除，剩下的MRI射频信号被连接到MRI系统中 由放大器放大后进行实时成像。 由于放大器仅处理MRI射频信号，因此它可以保持在正常的线性工作状态，以确保后续实时成像的正常进行。

公开(公告)号：US07279895B2

公开(公告)日：2007-10-09

申请号：US11322884

申请日：2005-12-30

申请人： Jian Min Wang ,  Bida Zhang

发明人： Jian Min Wang ,  Bida Zhang

IPC分类号： G01V3/00

CPC分类号： G01R33/5611

摘要： The present invention proposes a fast GeneRalized Autocalibrating Partially Parallel Acquisition (GRAPPA) image reconstruction algorithm for magnetic resonance imaging. The algorithm simplifies data fitting and channel merging in the process of reconstruction into a one-step linear calculation. Parameters needed to perform the linear calculation step can be pre-calculated and stored, thereby greatly increasing the image reconstruction speed and solving the problem of the relatively long image reconstruction time needed by prior art GRAPPA algorithms. Also, the algorithm can employ a weighting matrix to conveniently compare signal-to-noise ratio losses of images brought by different types of reconstruction methods in image domain and frequency domain.

摘要翻译： 本发明提出了用于磁共振成像的快速GeneRalized自动校准部分并行获取（GRAPPA）图像重建算法。 该算法将重建过程中的数据拟合和信道合并简化为一步线性计算。 可以预先计算和存储执行线性计算步骤所需的参数，从而大大提高图像重建速度，并解决现有技术GRAPPA算法所需的较长图像重构时间的问题。 此外，该算法可以采用加权矩阵来方便地比较图像域和频域中不同类型的重建方法带来的图像的信噪比损失。

公开(公告)号：US07084403B2

公开(公告)日：2006-08-01

申请号：US10689361

申请日：2003-10-17

申请人： Alok Mani Srivastava ,  Steven Jude Duclos ,  Qun Deng ,  James Walter Leblanc ,  Tie Bond Gao ,  Jian Min Wang ,  Lucas Lemar Clarke

发明人： Alok Mani Srivastava ,  Steven Jude Duclos ,  Qun Deng ,  James Walter Leblanc ,  Tie Bond Gao ,  Jian Min Wang ,  Lucas Lemar Clarke

IPC分类号： G01T1/20

CPC分类号： G01T1/2023 ,  C09K11/7772

摘要： Scintillator materials based on certain types of halide-lanthanide matrix materials are described. In one embodiment, the matrix material contains a mixture of lanthanide halides, i.e., a solid solution of at least two of the halides, such as lanthanum chloride and lanthanum bromide. In another embodiment, the matrix material is based on lanthanum iodide alone, which must be substantially free of lanthanum oxyiodide. The scintillator materials, which can be in monocrystalline or polycrystalline form, also include an activator for the matrix material, e.g., cerium. Radiation detectors that use the scintillators are also described, as are related methods for detecting high-energy radiation.

摘要翻译： 描述了基于某些类型的卤化物 - 镧系元素基质材料的闪烁体材料。 在一个实施方案中，基质材料含有镧系元素卤化物的混合物，即至少两种卤化物的固溶体，例如氯化镧和溴化镧。 在另一个实施方案中，基质材料仅基于碘化镧，其必须基本上不含氧化镧镧。 可以是单晶或多晶形式的闪烁体材料还包括用于基质材料例如铈的活化剂。 还描述了使用闪烁体的辐射检测器，以及用于检测高能量辐射的相关方法。

公开(公告)号：US09958518B2

公开(公告)日：2018-05-01

申请号：US13974534

申请日：2013-08-23

申请人： Shu Du ,  Zeng He He ,  Wen Ming Li ,  Tong Tong ,  Jian Min Wang

发明人： Shu Du ,  Zeng He He ,  Wen Ming Li ,  Tong Tong ,  Jian Min Wang

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

CPC分类号： G01R33/34084 ,  G01R33/34 ,  G01R33/3415 ,  G01R33/3642

摘要： A shoulder coil for a magnetic resonance system includes a receiving part. The shoulder coil also includes a transmitting part used for coupling a radio-frequency magnetic field of a body coil of the magnetic resonance system.

公开(公告)号：US09778330B2

公开(公告)日：2017-10-03

申请号：US13931611

申请日：2013-06-28

申请人： Ralph Oppelt ,  Jian Min Wang

发明人： Ralph Oppelt ,  Jian Min Wang

IPC分类号： G01R33/28 ,  H04B3/02 ,  G01R33/36 ,  H04B3/50 ,  G01R33/3415

CPC分类号： G01R33/28 ,  G01R33/3415 ,  G01R33/3621 ,  H04B3/02 ,  H04B3/50

摘要： A method for simultaneous transmission of at least two high-frequency transmission signals via a common high-frequency line includes providing at least two input signals at respective inlet ports. The input signals are signals of a same carrier frequency. From the input signals, respective transmission signals are provided with different transmission frequencies from each other and from the carrier frequency by mixing the input signals using one frequency mixer each. The frequency mixers are supplied with respective mixer oscillator signals. The transmission signals are transmitted via the common high-frequency line. The mixer oscillator signals are provided from a same oscillator signal.

公开(公告)号：US09513350B2

公开(公告)日：2016-12-06

申请号：US13787024

申请日：2013-03-06

申请人： Wen Ming Li ,  Yu Ye Liu ,  Jian Min Wang

发明人： Wen Ming Li ,  Yu Ye Liu ,  Jian Min Wang

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

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

摘要： An RF coil device and an MRI system are provided. The RF coil device includes m coil elements, where m is an integer greater than 1. The RF coil device also includes an RF switch control unit including n output terminals and m input terminals connected to the m coil elements, respectively, where n is an integer greater than or equal to 1 and less than m. The RF coil device includes a decoder for outputting a control signal to the RF switch control unit according to a received control command. The RF switch control unit connects each of not more than n input terminals to a different output terminal according to the control signal.

摘要翻译： 提供RF线圈装置和MRI系统。 RF线圈装置包括m个线圈元件，其中m是大于1的整数。RF线圈装置还包括RF开关控制单元，其分别包括n个输出端子和m个输入端子，其连接到m个线圈元件，其中n是 大于或等于1且小于m的整数。 RF线圈装置包括：解码器，用于根据接收到的控制命令向RF开关控制单元输出控制信号。 RF开关控制单元根据控制信号将不多于n个输入端子中的每一个连接到不同的输出端子。

公开(公告)号：US20140002087A1

公开(公告)日：2014-01-02

申请号：US13931611

申请日：2013-06-28

申请人： Ralph Oppelt ,  Jian Min Wang

发明人： Ralph Oppelt ,  Jian Min Wang

IPC分类号： G01R33/28 ,  H04B3/02

CPC分类号： G01R33/28 ,  G01R33/3415 ,  G01R33/3621 ,  H04B3/02 ,  H04B3/50

摘要： A method for simultaneous transmission of at least two high-frequency transmission signals via a common high-frequency line includes providing at least two input signals at respective inlet ports. The input signals are signals of a same carrier frequency. From the input signals, respective transmission signals are provided with different transmission frequencies from each other and from the carrier frequency by mixing the input signals using one frequency mixer each. The frequency mixers are supplied with respective mixer oscillator signals. The transmission signals are transmitted via the common high-frequency line. The mixer oscillator signals are provided from a same oscillator signal.

摘要翻译： 用于经由公共高频线同时传输至少两个高频传输信号的方法包括在各个入口端口提供至少两个输入信号。 输入信号是相同载波频率的信号。 根据输入信号，通过使用一个混频器混合输入信号，各个传输信号彼此之间和从载波频率提供不同的传输频率。 混频器提供相应的混频器振荡器信号。 发送信号通过公共高频线路发送。 混频器振荡器信号由相同的振荡器信号提供。