公开(公告)号：US07180290B2

公开(公告)日：2007-02-20

申请号：US10529841

申请日：2003-09-12

Applicant: Johan Samuel Van Den Brink

Inventor： Johan Samuel Van Den Brink

IPC: G01V3/00

CPC classification number: G01R33/5615 ,  G01R33/4835 ,  G01R33/561

Abstract: A magnetic resonance imaging method acquires interleaved k-space data from a common 2D region in two or more k-spaces. The k-spaces have a first coordinate axis and a second coordinate axis. The method comprises: a) sampling into a first direction along the first coordinate axis, b) applying a first compensation pulse, c) sampling into a second direction along the first coordinate axis, the second direction being opposite to the first direction, applying a second compensation pulse, d) repetitively carrying out the steps a) to d), e) reconstructig the data sampled in the first direction into a first image with first contract characteristics and data sampled in the second direction into a second image with second contrast characteristics different from the first, and, f) combining the first and second images.

Abstract translation: 磁共振成像方法从两个或更多个k空间中的公共2D区域获取交错的k空间数据。 k空间具有第一坐标轴和第二坐标轴。 该方法包括：a）沿着第一坐标轴沿第一方向进行采样，b）施加第一补偿脉冲，c）沿第一坐标轴沿第二方向采样，第二方向与第一方向相反， 第二补偿脉冲，d）重复执行步骤a）至d），e）将以第一方向采样的数据重新构成具有第一合同特性的第一图像和在第二方向上采样的数据成为具有第二对比特性的第二图像 与第一图像不同，以及f）组合第一和第二图像。

公开(公告)号：US06954069B2

公开(公告)日：2005-10-11

申请号：US09990209

申请日：2001-11-21

Applicant: Paul Royston Harvey ,  Marinus Johannes Adrianus Maria van Helvoort ,  Johan Samuel van den Brink

Inventor： Paul Royston Harvey ,  Marinus Johannes Adrianus Maria van Helvoort ,  Johan Samuel van den Brink

IPC: A61B5/055 ,  G01R33/3415 ,  G01R33/561 ,  G01V3/00

CPC classification number: G01R33/3415 ,  G01R33/5611

Abstract: The invention relates to a method for obtaining MRI images in a vertical main field while using a sub-sampling scheme like SENSE. The invention proposes a number of coil arrangements such that the advantages of SENSE (high speed acquisition) and vertical field (open view for the patient so as to avoid sensations of fear and claustrophobia) are combined. The coil arrangements preferably include butterfly coils and are arranged in such a way that they offer access to the patient and also allow the patient to be moved into and out of the imaging volume without interference by the RF coils.

Abstract translation: 本发明涉及一种在使用像SENSE这样的次采样方案的垂直主视场中获得MRI图像的方法。 本发明提出了一些线圈装置，使得SENSE（高速采集）和垂直场（为了避免恐惧和幽闭恐惧症的感觉而使患者的开放视野）的优点被组合。 线圈装置优选地包括蝶形线圈并且以这样的方式布置，使得它们提供对患者的接近并且还允许患者被移入和移出成像体积而不受RF线圈的干扰。

公开(公告)号：US09784805B2

公开(公告)日：2017-10-10

申请号：US12665336

申请日：2008-06-16

Applicant: Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Filips Van Liere ,  Roel Penterman ,  Ralph Kurt ,  Emiel Peeters ,  Dirk Jan Broer ,  Michel Paul Barbara Van Bruggen ,  Hans Van Zon ,  Miha Fuderer

Inventor： Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Filips Van Liere ,  Roel Penterman ,  Ralph Kurt ,  Emiel Peeters ,  Dirk Jan Broer ,  Michel Paul Barbara Van Bruggen ,  Hans Van Zon ,  Miha Fuderer

IPC: G01R33/341 ,  G01R33/3415 ,  G01R33/36

CPC classification number: G01R33/341 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/3692

Abstract: The invention relates to a nuclear magnetic resonance imaging radio frequency-receiver (112; 216; 308; 404), the receiver (112; 216; 308; 404) being adapted to receive analog signals from at least one radio frequency receiver coil unit (106; 200; 202; 300; 400; 402), the radio frequency receiver (112; 216; 308; 404) comprising: an analog-digital converter (118; 226) to convert the analog pre-amplified magnetic resonance signal into a digital signal, means (120; 230) for digital down converting the digital signal and a first communication interface (130; 252) adapted for transmitting the down converted digital signal via a communication link (e.g. wireless, optical or wire-bound).

公开(公告)号：US20110012598A1

公开(公告)日：2011-01-20

申请号：US12744947

申请日：2008-11-27

Applicant: Marinus Johannes Adrianus Maria van Helvoort ,  Johan Samuel van den Brink ,  Marc Paul Saes ,  Alexander Christiaan de Rijck ,  Klaas Jacob Lulofs

Inventor： Marinus Johannes Adrianus Maria van Helvoort ,  Johan Samuel van den Brink ,  Marc Paul Saes ,  Alexander Christiaan de Rijck ,  Klaas Jacob Lulofs

IPC: G01R33/44

CPC classification number: G01R33/34 ,  G01R33/34084 ,  G01R33/341 ,  G01R33/3621 ,  G01R33/3642 ,  G01R33/3692

Abstract: A radio frequency coil comprises: a coil unit (30, 100) including one or more conductive radio frequency receive elements (32, 110) tuned to receive a magnetic resonance signal and an on-board active electronic component (34, 114, 118) operatively coupled with the one or more conductive radio frequency receive elements; and a power coupling element (40, 46, 134, 138, 140) configured to non-conductively receive electrical power from a power delivery element (44, 132, 136) during a magnetic resonance acquisition session to power the on-board active electronic component (114, 118) during the magnetic resonance acquisition session (e.g. wirelessly by inductive coupling or by capacitive coupling). In some embodiments, the power coupling element (134, 138, 140) is a component of the coil unit (102), and the radio frequency coil further comprises a base coil unit (104) including the power delivery element (132, 136) operatively combinable with the coil unit (102) to define an annular coil.

Abstract translation: 射频线圈包括：线圈单元（30,100），包括被调谐以接收磁共振信号的一个或多个导电射频接收元件（32,110）和板载有源电子元件（34,114,118） 与所述一个或多个导电射频接收元件可操作地耦合; 以及功率耦合元件（40,46,134,138,140），其被配置为在磁共振采集会话期间非导电地接收来自功率传递元件（44,132,136）的电力，以为所述板载有源电子 在磁共振采集会话期间（例如，通过电感耦合或电容耦合无线地）组件（114,118）。 在一些实施例中，功率耦合元件（134,138,140）是线圈单元（102）的组件，并且射频线圈还包括包括功率输送元件（132,136）的基线圈单元（104） 可操作地与线圈单元（102）组合以限定环形线圈。

公开(公告)号：US20080253639A1

公开(公告)日：2008-10-16

申请号：US12067393

申请日：2006-09-22

Applicant: Johan Samuel Van Den Brink

Inventor： Johan Samuel Van Den Brink

IPC: A61B5/055

CPC classification number: G01R33/56509

Abstract: A method for acquiring image data from a patient with a magnetic resonance imaging (MRI) system. The proposed method comprises the steps of: a) predefining a number of scan geometries for acquiring the image data from at least one region of interest (ROI) relative to the patient, b) performing at least one scan for acquiring the image data in accordance with at least one of the predefined scan geometries, c) analysing in the image data a position of the region of interest to detect a deviation from the at least one predefined scan geometry, d) changing the at least one predefined scan geometry if said deviation exceeds a predetermined threshold value, and e) repeating steps b) to d) until a predetermined number of scans has been performed. Thus, by means of the proposed method the utility of such predefined scan geometries is greatly enhanced.

Abstract translation: 一种利用磁共振成像（MRI）系统从患者获取图像数据的方法。 所提出的方法包括以下步骤：a）预先定义用于从相关患者的至少一个感兴趣区域（ROI）获取图像数据的多个扫描几何图形，b）执行至少一次扫描以获取图像数据 具有预定义的扫描几何形状中的至少一个，c）在所述图像数据中分析所述感兴趣区域的位置以检测与所述至少一个预定扫描几何形状的偏差，d）如果所述偏差 超过预定阈值，以及e）重复步骤b）至d），直到执行了预定数目的扫描。 因此，通过所提出的方法，大大增强了这种预定义扫描几何的实用性。

公开(公告)号：US20080191695A1

公开(公告)日：2008-08-14

申请号：US11909164

申请日：2006-03-20

Applicant: Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

Inventor： Marinus Johannes Adrianus Maria Van Helvoort ,  Marc Paul Saes ,  Johan Samuel Van Den Brink ,  Robert Paul Kleihorst ,  Paulus Cornelius Hendrikus Adrianus Haans

IPC: G01R33/36

CPC classification number: G01R33/3621 ,  G01R33/3415 ,  G01R33/3692

Abstract: The present invention relates to a magnetic resonance imaging system, to a magnetic resonance imaging method for operating a magnetic resonance imaging system and to a computer program for operating a magnetic resonance imaging system. In order to considerably reduce the number of cabling in a magnetic resonance imaging system a magnetic resonance imaging system (1) is suggested, the system comprising: an examination zone (5) arranged to receive a body for examination; magnetic field generating means (9, 10, 24) for generating a magnetic field in the examination zone (5); a receiving unit (14) located in the examination zone (5) or in the vicinity of the examination zone (5); an interface unit (17) located in the examination zone (5) or in the vicinity of the examination zone (5), and arranged separately from the receiving unit (14); and a signal processing unit (21) disposed at a location (2) remote from the receiving unit (14) and the interface unit (17); wherein the receiving unit (14) comprising a receiver (15) adapted to receive a spin resonance signal generated in the examination zone (5), and a transmitter (16) adapted to transmit the spin resonance signal to the interface unit (17); and wherein the interface unit (17) comprises a receiver (20) for receiving the spin resonance signals, an analog to digital converter (19) adapted to generate a digital signal in response to the received spin resonance signal, and a transmitter (20) for transmitting the digitized signal to the signal processing unit (21).

Abstract translation: 磁共振成像系统技术领域本发明涉及一种用于操作磁共振成像系统的磁共振成像方法和用于操作磁共振成像系统的计算机程序的磁共振成像系统。 为了大大减少磁共振成像系统中的电缆数量，建议使用磁共振成像系统（1），该系统包括：检查区域（5），布置成接收检查体; 用于在检查区（5）中产生磁场的磁场产生装置（9,10,24）; 位于检查区（5）或检查区（5）附近的接收单元（14）; 位于所述检查区域（5）中或所述检查区域（5）附近的接口单元（17），并且与所述接收单元（14）分开布置; 以及设置在远离所述接收单元（14）和所述接口单元（17）的位置（2）处的信号处理单元（21）。 其中所述接收单元（14）包括适于接收在所述检查区（5）中产生的自旋共振信号的接收器（15）和适于将所述自旋共振信号传输到所述接口单元（17）的发射器（16）。 并且其中所述接口单元（17）包括用于接收所述自旋谐振信号的接收器（20），适于响应于所接收的自旋谐振信号产生数字信号的模数转换器（19），以及发射器（20） 用于将数字化信号发送到信号处理单元（21）。

公开(公告)号：US07176687B2

公开(公告)日：2007-02-13

申请号：US10510853

申请日：2003-03-27

Applicant: Hans Gerard Jenniskens ,  Johan Samuel Van Den Brink

Inventor： Hans Gerard Jenniskens ,  Johan Samuel Van Den Brink

IPC: G01V3/00 ,  A61B5/55

CPC classification number: G01R33/5615 ,  G01R33/5613

Abstract: In a method for magnetic resonance imaging of at least a portion of a body placed in a stationary and substantially homogeneous main magnetic field, the body is subjected to a sequence of RF and magnetic field gradient pulses during an interval TSE, thereby generating a plurality of spin echo signals, which are measured and processed for reconstruction of an image. Thereafter, during an interval TDRV, an additional spin echo is generated by subjecting the body to at least one further refocusing RF pulse and/or magnetic field gradient pulse, and a RF drive pulse (βX) is irradiated at the time of this additional spin echo. In order to provide a fast and reliable method for T1-weighted imaging, which gives a high T1 contrast and also a sufficient signal-to-noise ratio, the phase of the RF drive pulse (βX) is selected such that nuclear magnetization at the time of the additional spin echo is transformed into negative longitudinal magnetization. The sequence is repeated beginning with another sequence of RF and magnetic field gradient pulses after a recovery period TREC.

Abstract translation: 在放置在静止且基本均匀的主磁场中的身体的至少一部分的磁共振成像的方法中，在间隔TSE期间对身体进行序列的RF和磁场梯度脉冲，由此产生多个 自旋回波信号，其被测量和处理用于重建图像。 此后，在间隔TDRV期间，通过对身体进行至少一个进一步的再聚焦RF脉冲和/或磁场梯度脉冲的产生，并且RF驱动脉冲（β×X）是 在该额外的自旋回波时照射。 为了提供一种提供高T 1对比度并且具有足够的信噪比的T 1 - 1加权成像的快速可靠的方法，该相位 选择RF驱动脉冲（βX X），使得额外自旋回波时的核磁化转变为负的纵向磁化强度。 在恢复期TREC之后，序列以另一个RF和磁场梯度脉冲序列重复开始。

公开(公告)号：US20090177076A1

公开(公告)日：2009-07-09

申请号：US12296936

申请日：2007-04-05

Applicant: Bernd Aldefeld ,  Peter Boernert ,  Jochen Keupp ,  Johan Samuel Van Den Brink

Inventor： Bernd Aldefeld ,  Peter Boernert ,  Jochen Keupp ,  Johan Samuel Van Den Brink

IPC: A61B5/05

CPC classification number: G01R33/56375 ,  G01R33/56383 ,  G01R33/56509 ,  G01R33/5673 ,  G01R33/5676

Abstract: A magnetic resonance examination system has an object carrier (14) to move an object to be examined relative to the field of view. A monitoring system (33) monitors examination circumstances under which magnetic resonance signals are acquired from the object within the field of view. In particular the monitoring system monitors the degree of physiological motion in the patient to be examined. A velocity control system (32) to control the velocity of the movement of the object relative to the field of view and to control the velocity on the basis of the monitored examination circumstances, i.e. the degree of physiological motion.

Abstract translation: 磁共振检查系统具有用于相对于视场移动待检查物体的物体载体（14）。 监视系统（33）监视从视野内的物体获取磁共振信号的检查情况。 特别地，监测系统监测待检查患者的生理运动程度。 一种速度控制系统（32），用于控制物体相对于视场的移动速度，并且基于所监视的检查情况即生理运动的程度来控制速度。

公开(公告)号：US20080262340A1

公开(公告)日：2008-10-23

申请号：US11569069

申请日：2005-05-12

Applicant: Cornelis Leonardus Gerardus Ham ,  Miha Fuderer ,  Johan Samuel Van Den Brink

Inventor： Cornelis Leonardus Gerardus Ham ,  Miha Fuderer ,  Johan Samuel Van Den Brink

IPC: A61B5/055 ,  G01R33/563

CPC classification number: G01R33/56375

Abstract: The invention relates to a MRI system and to a method for producing an image with such an system. In order to provide a MR imaging technique with a high efficient MR signal acquisition, which provides a high level of comfort to a patient, a MRI system and method are suggested, where image data from an object are acquired while the object is moving with variable speed relative to the MRI system, and where the image data are combined and an image of the object is reconstructed.

Abstract translation: 本发明涉及一种MRI系统和一种用这种系统生产图像的方法。 为了提供具有高效MR信号采集的MR成像技术，其为患者提供高水平的舒适性，建议了MRI系统和方法，其中在物体运动时获取来自对象的图像数据， 相对于MRI系统的速度，并且其中图像数据被组合并且重建对象的图像。

公开(公告)号：US07215190B2

公开(公告)日：2007-05-08

申请号：US10496388

申请日：2002-11-20

Applicant: Romhild Martijn Hoogeveen ,  Frederik Visser ,  Lolkje Frederika Zoer ,  Willem Marten Prins ,  Johan Samuel Van Den Brink

Inventor： Romhild Martijn Hoogeveen ,  Frederik Visser ,  Lolkje Frederika Zoer ,  Willem Marten Prins ,  Johan Samuel Van Den Brink

IPC: G01V3/00

CPC classification number: G01R33/4833 ,  G01R33/3415 ,  G01R33/5611

Abstract: In a magnetic resonance imaging method magnetic resonance signal samples are received for a predetermined field of view by a receiving antenna having a spatial sensitivity profile. The sampling in the k space corresponds to the predetermined field of view in the geometrical space. Folded-over images having folded-over pixel values are reconstructed from the sampled magnetic resonance signals. Pixel contributions for spatial positions within the predetermined field of view are calculated from the folded-over pixel values and the spatial sensitivity profile of the receiver antenna. The magnetic resonance image is formed from the pixel contributions for spatial positions within the predetermined field of view. Thus, aliasing or fold-over artefacts caused by a field of view that is too small are avoided.

Abstract translation: 在磁共振成像方法中，通过具有空间灵敏度分布的接收天线，对于预定的视场来接收磁共振信号样本。 k空间中的采样对应于几何空间中的预定视场。 从采样的磁共振信号重建具有折叠像素值的折叠图像。 根据接收天线的折叠像素值和空间灵敏度曲线计算预定视场内的空间位置的像素贡献。 磁共振图像由预定视野内的空间位置的像素贡献形成。 因此，避免了由视场太小引起的混叠或折叠伪影。