Dynamic adaptation of a degree of signal compression for MRT image processing
    121.
    发明授权
    Dynamic adaptation of a degree of signal compression for MRT image processing 有权
    用于MRT图像处理的一定程度的信号压缩的动态适应

    公开(公告)号:US09297872B2

    公开(公告)日:2016-03-29

    申请号:US14088386

    申请日:2013-11-23

    CPC classification number: G01R33/5608 G01R33/3415 G01R33/5611

    Abstract: An apparatus and a method for generating an image from N reception signal data sets of signals received by a plurality of coils of a magnetic resonance tomography appliance from a region of a body to be examined using an image processing computer are provided. The apparatus includes a degree-of-compression determining device. A ratio N/M of the number N of N reception signal data sets generated from the signals received by the plurality of coils to a smaller number M of mode data sets is defined taking account of a plurality of parameters. The plurality of parameters at least also represent system resources of the image processing computer. Using a compression computer, the N reception signal data sets are compressed into M mode data sets. After this, the M mode data sets are used by the image processing computer for generating the image of the region of the body.

    Abstract translation: 提供了一种用于从使用图像处理计算机的被检体的区域从磁共振断层摄影装置的多个线圈接收的N个接收信号数据组生成图像的装置和方法。 该装置包括压缩度确定装置。 通过考虑多个参数来定义从多个线圈接收到的信号产生的N个接收信号数据集合的数目N的比N / M到模式数据集的较小数量M. 多个参数至少也表示图像处理计算机的系统资源。 使用压缩计算机,N个接收信号数据集被压缩成M个模式数据集。 之后,M模式数据集由图像处理计算机用于生成身体区域的图像。

    Flexible Signal Multiplexer for MRI Receiving Systems
    122.
    发明申请
    Flexible Signal Multiplexer for MRI Receiving Systems 审中-公开
    用于MRI接收系统的灵活信号复用器

    公开(公告)号:US20160077174A1

    公开(公告)日:2016-03-17

    申请号:US14842033

    申请日:2015-09-01

    CPC classification number: G01R33/3621 G01R33/3664

    Abstract: The embodiments relate to a method and a receiving system for an imaging magnetic resonance tomography system. The receiving system includes at least one multiplexer entity for a plurality of receive signals, which respectively come from an antenna of a local coil and may be switched to an analog-digital converter, wherein sampling rates (e.g., 20 MS/s per Ch, 40 MS/s per Ch, 80 MS/s per Ch) of an analog-digital converter for the sampling of a receive signal may be changed.

    Abstract translation: 实施例涉及用于成像磁共振断层摄影系统的方法和接收系统。 接收系统包括用于多个接收信号的至少一个多路复用器实体,其分别来自本地线圈的天线并且可以切换到模数转换器,其中采样速率(例如,每个Ch的20MS / s, 可以改变用于接收信号采样的模拟数字转换器的每个Ch的40MS / s,每个Ch的80MS / s)。

    METHOD, SYSTEM AND MAGNETIC RESONANCE APPARATUS FOR COMPENSATING FOR INHOMOGENEITIES IN THE MAGNETIC FIELD
    123.
    发明申请
    METHOD, SYSTEM AND MAGNETIC RESONANCE APPARATUS FOR COMPENSATING FOR INHOMOGENEITIES IN THE MAGNETIC FIELD 审中-公开
    用于补偿磁场中的不均匀性的方法,系统和磁共振装置

    公开(公告)号:US20150301135A1

    公开(公告)日:2015-10-22

    申请号:US14687378

    申请日:2015-04-15

    Abstract: A method and a magnetic resonance apparatus compensate for inhomogeneities in a magnetic field generated by the magnetic resonance apparatus with a shim coil of the magnetic resonance apparatus. The shim coil is arranged at an object under investigation. A position and an orientation of the shim coil are automatically determined. The inhomogeneities of the magnetic field are determined. The inhomogeneities are compensated for via the shim coil depending on the position and the orientation of the shim coil.

    Abstract translation: 一种方法和磁共振装置用磁共振装置的垫片线圈补偿由磁共振装置产生的磁场中的不均匀性。 垫片线圈布置在被调查物体上。 自动确定垫片线圈的位置和方向。 确定磁场的不均匀性。 取决于垫片线圈的位置和方向,通过垫片线圈补偿不均匀性。

    Magnetic Resonance Imaging with Whole Body and Local Coil Systems
    124.
    发明申请
    Magnetic Resonance Imaging with Whole Body and Local Coil Systems 审中-公开
    全身和局部线圈系统的磁共振成像

    公开(公告)号:US20150226820A1

    公开(公告)日:2015-08-13

    申请号:US14620666

    申请日:2015-02-12

    Abstract: A magnetic resonance imaging system includes an arrangement of magnet systems for generating a homogeneous main magnetic field and additional gradient fields for spatial encoding. At least one transmission coil is used to radiate in an alternating electromagnetic field in order to induce magnetic resonance signals and measure the latter using at least one reception coil. The magnetic resonance imaging system is configured in such that, during an imaging measurement of the magnetic resonance signals for generating the alternating electromagnetic field, at least one fixedly installed whole body coil system and at least one mobile local coil system are operated simultaneously with separately actuated channels.

    Abstract translation: 磁共振成像系统包括用于产生均匀主磁场的磁体系统和用于空间编码的附加梯度场的布置。 至少一个传输线圈用于在交变电磁场中辐射,以便诱导磁共振信号,并使用至少一个接收线圈测量后者。 磁共振成像系统被配置为使得在用于产生交变电磁场的磁共振信号的成像测量期间,至少一个固定安装的全身线圈系统和至少一个移动局部线圈系统同时被操作并且被单独致动 频道

    Patient-Adaptive B0 Homogenization of MR Systems Using Different Types of Shim Coils
    126.
    发明申请
    Patient-Adaptive B0 Homogenization of MR Systems Using Different Types of Shim Coils 有权
    患者自适应B0均匀化MR系统使用不同类型的下线圈

    公开(公告)号:US20150054510A1

    公开(公告)日:2015-02-26

    申请号:US14464073

    申请日:2014-08-20

    CPC classification number: G01R33/3875 A61B5/0522 A61B5/055 G01R33/445

    Abstract: The embodiments relate to methods and to magnetic resonance tomography systems having a shim system, where the shim system includes at least one global shim coil in an area surrounding the bore of the magnetic resonance tomography system, and where the shim system includes a local shim coil in a local coil of the magnetic resonance tomography system with a shim controller, where the shim controller embodied to define shim currents for the global shim coil and for the local shim coil.

    Abstract translation: 实施例涉及具有垫片系统的方法和磁共振断层摄影系统,其中垫​​片系统包括围绕磁共振断层摄影系统的孔的区域中的至少一个全局垫片线圈,并且其中垫片系统包括局部垫片线圈 在具有垫片控制器的磁共振断层摄影系统的局部线圈中,其中所述垫片控制器被实施为限定全局垫片线圈和局部匀场线圈的垫片电流。

    Breast coil for magnetic resonance recordings of the breast
    127.
    发明授权
    Breast coil for magnetic resonance recordings of the breast 有权
    用于乳房磁共振记录的乳房线圈

    公开(公告)号:US08948844B2

    公开(公告)日:2015-02-03

    申请号:US13723538

    申请日:2012-12-21

    Applicant: Stephan Biber

    Inventor: Stephan Biber

    Abstract: A breast coil for a magnetic resonance tomography device for the production of magnetic resonance recordings of female breasts includes a coil housing having a breast recess to accommodate a breast and a number of coil elements. At least one of the coil elements forms an HF correction coil element and has a circuit arrangement to switch over the HF correction coil element between an HF correction mode of operation and another mode of operation. The HF correction coil element is constructed such that in the HF correction mode of operation, the HF correction coil element resonates passively with a B1 field emitted by a transmission antenna arrangement of the magnetic resonance tomography device, and influences a local B1 field distribution during a magnetic resonance recording.

    Abstract translation: 用于产生雌性乳房的磁共振记录的用于磁共振断层摄影装置的乳房线圈包括具有用于容纳乳房和多个线圈元件的乳房凹部的线圈壳体。 线圈元件中的至少一个形成HF校正线圈元件,并且具有用于在HF校正操作模式和另一操作模式之间切换HF校正线圈元件的电路布置。 HF校正线圈元件被构造成使得在HF校正操作模式中,HF矫正线圈元件被磁共振断层摄影装置的发射天线装置发射的B1场被动地谐振,并且影响在 磁共振记录。

    Method for use of a common shoulder coil part for both left and right shoulder
    129.
    发明授权
    Method for use of a common shoulder coil part for both left and right shoulder 有权
    用于左肩和右肩的普通肩线圈部分的方法

    公开(公告)号:US08805477B2

    公开(公告)日:2014-08-12

    申请号:US14060739

    申请日:2013-10-23

    CPC classification number: A61B5/055 A61B5/4528 G01R33/34084

    Abstract: In a method for acquiring magnetic resonance signals from a first shoulder or an opposite second shoulder of a patient, a shoulder coil anterior part and a shoulder coil posterior part are provided. A base plate is engageable with a moveable support element connecting the shoulder coil posterior part to the base plate to permit lateral movement and 90 degree rotation of the shoulder coil posterior part. With the base plate beneath the patient, the shoulder coil posterior part is placed below the first shoulder and the shoulder coil anterior part is placed above the first shoulder to permit acquisition of magnetic resonance measurements. To acquire signals from the opposite second shoulder, the shoulder coil posterior part is moved across the base plate to be positioned beneath the second shoulder and is rotated by 90 degrees. The shoulder coil anterior part is placed above the rotated shoulder coil posterior part.

    Abstract translation: 在从患者的第一肩部或相对的第二肩部获取磁共振信号的方法中,设置有肩部线圈前部和肩部线圈后部。 基板可以与将肩部线圈后部连接到基板的可移动支撑元件接合,以允许肩部线圈后部的横向移动和90度旋转。 将患者的底板放在患者的下方,将肩胛骨后部置于第一肩部的下方,将肩部线圈前部置于第一肩部的上方,以便获得磁共振测量。 为了从相对的第二肩部获取信号,肩部线圈后部移动穿过基板,以定位在第二肩部下方并且旋转90度。 将肩部线圈前部放置在旋转的肩部线圈后部上方。

    Magnetic resonance apparatus
    130.
    发明授权
    Magnetic resonance apparatus 有权
    磁共振装置

    公开(公告)号:US08749238B2

    公开(公告)日:2014-06-10

    申请号:US13186032

    申请日:2011-07-19

    CPC classification number: G01R33/3621 G01R33/341 G01R33/3692

    Abstract: A magnetic resonance apparatus includes a receiving system with at least one receiver configured to process at least one receive signal of a receive channel. The magnetic resonance apparatus further includes at least one switching device configured to variably assign a first number of receive channels to a first number of inputs of the at least one receiver. The switching device has a crossbar switch and a pre-selection circuit connected upstream of the crossbar switch. Each receive channel of a first group of receive channels is directly connected to an input of a first group of inputs that is permanently assigned to the respective receive channel.

    Abstract translation: 磁共振装置包括具有至少一个接收器的接收系统,其被配置为处理接收信道的至少一个接收信号。 磁共振装置还包括至少一个开关装置,其被配置为将第一数量的接收通道可变地分配给至少一个接收器的第一数量的输入。 开关装置具有连接在交叉开关上游的交叉开关和预选电路。 第一组接收通道的每个接收通道直接连接到永久分配给相应的接收通道的第一组输入的输入。

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