公开(公告)号：US20100280360A1

公开(公告)日：2010-11-04

申请号：US12770901

申请日：2010-04-30

申请人： Stephan Biber ,  Zeng He He ,  Li Ma ,  Hai Ning Wang ,  Jian Min Wang

发明人： Stephan Biber ,  Zeng He He ,  Li Ma ,  Hai Ning Wang ,  Jian Min Wang

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/4528 ,  G01R33/34084

摘要： Improved patient comfort is provided by a local coil arrangement designed to support the production of an MRT image of a shoulder, wherein the housing of the local coil arrangement is composed of two separable parts.

摘要翻译： 改善的患者舒适度由设计用于支撑制造肩部的MRT图像的局部线圈装置提供，其中局部线圈装置的壳体由两个可分离部分组成。

公开(公告)号：US20090286478A1

公开(公告)日：2009-11-19

申请号：US12465147

申请日：2009-05-13

申请人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

IPC分类号： H04B7/00

CPC分类号： G01R33/3664 ,  G01R33/3415 ,  G01R33/3607 ,  G01R33/3621 ,  G01R33/3635

摘要： An arrangement for transmitting magnetic resonance signals, with a transmission link that connects a local coil with a receiver, has a first channel of the local coil with a first single antenna to acquire a first magnetic resonance signal, as well as a first mixer connected with the first single antenna. The first mixer forms an intermediate-frequency first signal from the supplied first magnetic resonance signal. A second channel of the local coil has a second single antenna to acquire a second magnetic resonance signal, as well as a second mixer connected with the second single antenna. The second mixer forms an intermediate-frequency second signal from the supplied second magnetic resonance signal. The local coil has a device for signal combination that, by frequency multiplexing, that combines the intermediate-frequency first signal of the first channel and the intermediate-frequency second signal of the second channel so that it arrives at the receiver via the transmission path. The receiver has an A/D converter at which one of the transmitted intermediate-frequency signals of an associated channel arrives in order to be sampled with a sampling frequency for digitization. For frequency conversion, a first local oscillator frequency is connected at the first mixer and a second local oscillator frequency is connected at the second mixer. the first and second local oscillator frequencies are selected such that intermediate-frequencies formed by the frequency conversion are mirror-symmetrical relative to the sampling frequency of the A/D converter.

摘要翻译： 用于传输磁共振信号的装置，具有将本地线圈与接收器连接的传输链路，具有本地线圈的第一通道和第一单个天线以获取第一磁共振信号，以及与第 第一单天线。 第一混频器从所提供的第一磁共振信号形成中频第一信号。 本地线圈的第二通道具有用于获取第二磁共振信号的第二单个天线，以及与第二单个天线连接的第二混频器。 第二混频器从所提供的第二磁共振信号形成中频第二信号。 本地线圈具有用于信号组合的装置，通过频率复用，组合第一通道的中频第一信号和第二通道的中频第二信号，使得其经由传输路径到达接收器。 接收机具有A / D转换器，在该A / D转换器中，相关信道的所发送的中频信号中的一个到达，以便以用于数字化的采样频率进行采样。 对于频率转换，在第一混频器处连接第一本地振荡器频率，在第二混频器处连接第二本地振荡器频率。 选择第一和第二本地振荡器频率，使得由频率变换形成的中频相对于A / D转换器的采样频率是镜像对称的。

公开(公告)号：US10794972B2

公开(公告)日：2020-10-06

申请号：US15962771

申请日：2018-04-25

申请人： Stephan Biber

发明人： Stephan Biber

IPC分类号： G01R33/36 ,  G01R33/54 ,  H04L1/00

摘要： The disclosure relates to a local coil as well as a system including a magnetic resonance tomography system with a local coil. The local coil includes a data source and a signal output in signal communication with the data source for outputting data from the data source. The data source is configured to transmit a plurality of data items via the signal output. To this end, the signal output includes a radio-frequency source and a modulator and is configured to modulate to transmit the data from the data source onto a carrier frequency of the radio-frequency source by the modulator.

公开(公告)号：US10663543B2

公开(公告)日：2020-05-26

申请号：US15951156

申请日：2018-04-11

申请人： Stephan Biber ,  Jan Bollenbeck ,  Sven Heggen ,  Martin Nisznansky ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Sven Heggen ,  Martin Nisznansky ,  Markus Vester

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

摘要： A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.

公开(公告)号：US10261147B2

公开(公告)日：2019-04-16

申请号：US15043620

申请日：2016-02-14

申请人： Stephan Biber ,  David Grodzki

发明人： Stephan Biber ,  David Grodzki

IPC分类号： G01R33/385 ,  G01R33/54

摘要： A magnetic resonance device includes at least one gradient amplifier and at least one gradient coil. The magnetic resonance device also includes a switching matrix unit that is embodied flexibly to connect the at least one gradient amplifier to the at least one gradient coil. A preliminary pulse sequence for the magnetic resonance device provides that in the optimized pulse sequence, a sufficient number of gradient amplifiers is available at any point for operating the gradient coils used.

公开(公告)号：US10132885B2

公开(公告)日：2018-11-20

申请号：US14975779

申请日：2015-12-19

申请人： Stephan Biber ,  Georg Pirkl

发明人： Stephan Biber ,  Georg Pirkl

IPC分类号： G01V3/00 ,  G01R33/36 ,  A61B5/00 ,  G01R33/30

摘要： A magnetic resonance tomography system includes a plurality of MRT plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the MRT plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements. Between outputs of receive signal processing element blocks and an evaluation device of the magnetic resonance tomography system, a digital channel selection unit is provided. On an input side of the digital channel selection unit, the digital channel selection unit may be connected to antenna elements. Signals from fewer antenna elements are present at the output of the digital channel selection unit than at an input of the digital channel selection unit.

公开(公告)号：US20180081012A1

公开(公告)日：2018-03-22

申请号：US15712725

申请日：2017-09-22

申请人： Stephan Biber

发明人： Stephan Biber

IPC分类号： G01R33/38 ,  H01F6/04

CPC分类号： G01R33/3804 ,  F25B2600/25 ,  G01R33/3815 ,  G01R33/385 ,  H01F6/04

摘要： A cooling system for a magnetic resonance tomography system is provided. The cooling system includes a first coolant circuit with a first coolant pump and a first heat exchanger in thermal contact with an object to be cooled. The first cooling circuit further includes a switchover apparatus that is configured to adjust a heat flow from the first coolant circuit optionally to a first heat sink and/or a second heat sink. In such cases the second heat sink is a second heat exchanger that is fluidically connected to an emergency cooling system.

公开(公告)号：US09903924B2

公开(公告)日：2018-02-27

申请号：US14450416

申请日：2014-08-04

申请人： Stephan Biber

发明人： Stephan Biber

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01R33/58 ,  G01R33/422

CPC分类号： G01R33/34084 ,  G01R33/3642 ,  G01R33/3664 ,  G01R33/3692 ,  G01R33/422 ,  G01R33/58

摘要： An MR marker for magnetic resonance imaging includes: (1) a closed volume containing a marker medium, (2) a first marker coil surrounding the volume for detecting an MR signal from the marker medium, (3) an RF shield which surrounds at least the volume and the first marker coil and screens against external RF fields, (4) a second marker coil, arranged outside the RF shield, for inductive and/or capacitive coupling to a magnetic field, and/or for emitting the MR signal detected by the first marker coil, (5) a first electrical interface for controllable electrical connection of the first marker coil to the magnetic resonance imaging scanner, (6) a second electrical interface for controllable coupling of the second marker coil and first marker coil, and (7) an electrical controller with which the first interface and/or the second interface may be controlled.

公开(公告)号：US09817089B2

公开(公告)日：2017-11-14

申请号：US13722606

申请日：2012-12-20

申请人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

IPC分类号： G01R33/30 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/563

CPC分类号： G01R33/30 ,  G01R33/3415 ,  G01R33/3664 ,  G01R33/56383

摘要： A selection unit for a magnetic resonance imaging system may be provided. The selection unit electrically connects a first number of electrical terminals to a second number of communication entities. The selection unit is arranged in and/or on a mobile object-support element for moving an examination object which is to be depicted by the magnetic resonance imaging system into a recording position.

公开(公告)号：US09810752B2

公开(公告)日：2017-11-07

申请号：US14483795

申请日：2014-09-11

申请人： Stephan Biber ,  Jan Bollenbeck ,  Markus Vester ,  JianMin Wang

发明人： Stephan Biber ,  Jan Bollenbeck ,  Markus Vester ,  JianMin Wang

IPC分类号： G01R33/341 ,  G01R33/54 ,  G01R33/36 ,  G01R33/385 ,  G01R33/3415

CPC分类号： G01R33/341 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/3664 ,  G01R33/3852 ,  G01R33/54

摘要： A method and an apparatus for a magnetic resonance imaging system are provided. A type of further processing of signals transmitted by a local coil to a magnetic resonance imaging (MRI) system is determined in dependence on information received in or from the local coil about a local-coil type of the local coil.