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1.发明公开WIRELESS-TYPE RF COIL AND TRANSMITTER FOR LEGACY MAGNETIC RESONANCE IMAGING (MRI) SYSTEMS AND METHOD OF OPERATION THEREOF 审中-公开用于传统磁共振成像（MRI）系统的无线型RF线圈和发射器及其操作方法
公开(公告)号：EP3278129A1
公开(公告)日：2018-02-07
申请号：EP16710832.3
申请日：2016-03-14
IPC分类号： G01R33/36
CPC分类号： G01R33/3692 , G01R33/3621
摘要： A transmission apparatus for legacy magnetic resonance (MR) systems including one or more of a radio transmission portion having coupling to an analog RF cable port of the MR system including at least one first controller, an analog-to-digital converter (A/D), and a transmitter. The first controller controls the A/D to digitize analog magnetic resonance (MR) information received from the RF coil and controls the transmitter to transmit the digitized MR information. A radio reception portion including an analog output port and a coupler for coupling the output port to a legacy cable port input of the legacy system including at least one second controller, a receiver, and a digital-to-analog converter (D/A). The second controller controls the receiver to receive the transmitted digitized MR information, and controls the D/A to perform a digital-to-analog conversion to form a corresponding analog MR signal which is output at the output port.
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2.发明公开REDUCTION OF ARTIFACTS DUE TO INTER-SHOT MOTION IN MULTI-SHOT MRI 审中-公开多米尼加共和国人造卫星系统（VERFAHREN ZUM BETRIEB DAVON）
公开(公告)号：EP3164729A2
公开(公告)日：2017-05-10
申请号：EP15744685.7
申请日：2015-06-30
IPC分类号： G01R33/565 , G01R33/48 , G01R33/563
CPC分类号： G01R33/56509 , G01R33/4818 , G01R33/5608 , G01R33/5616 , G01R33/56341
摘要： Reduction of artifacts caused by inter-shot motion in multi-shot MRI (e.g. DWI). To this end, the invention teaches a magnetic resonance (MR) imaging (MRI) system (100, 1500), including at least one controller (110, 1510) configured to: perform a multi-shot image acquisition process to acquire MR information for at least one multi-shot image set; train a convolution kernel comprising data on at least a portion of the MR information obtained without the use of the gradient or by using a self-training process, the convolution kernel including convolution data; iteratively convolve the MR information obtained with the use of a gradient for at least two of the image shots of the at least one multi-shot image set with the trained convolution kernel; project the synthetic k-space data for the at least two image shots of the at least one multi-shot image set into image space; and average the projected synthetic k-space data that are projected into the image space to form image information.
摘要翻译： 减少由多次MRI（例如DWI）中的拍摄间移动引起的伪影。 为此，本发明教导了一种磁共振（MR）成像（MRI）系统（100,1500），其包括至少一个控制器（110,1510），其被配置为：执行多次图像获取过程以获取MR信息 至少一个多镜头图像集; 训练卷积核，其包括在不使用所述梯度获得的所述MR信息的至少一部分上的数据，或者通过使用自训练过程，所述卷积核包括卷积数据; 迭代地卷积使用对训练的卷积核的至少一个多点图像集的图像拍摄中的至少两个的梯度获得的MR信息; 将所述至少一个多画面图像集的所述至少两个图像拍摄的合成k空间数据投影到图像空间中; 并且将投影到图像空间中的投影合成k空间数据的平均化以形成图像信息。
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公开(公告)号：EP2979103A1
公开(公告)日：2016-02-03
申请号：EP14716022.0
申请日：2014-03-17
IPC分类号： G01R33/34 , G01R33/3415
CPC分类号： G01R33/34084 , G01R33/34007 , G01R33/34046 , G01R33/341 , G01R33/3415
摘要： A local magnetic resonance (MR) radio frequency (RF) coil (12, 70, 90) includes a fixed size coil housing (19, 72) with an internal opening (26) which receives a portion of a subject anatomy for imaging. The internal opening (26) includes a narrowed portion (28) and a divergent portion (30) which accommodates variable sizes of subject anatomy. A first size of antenna (84) is disposed in the housing (19, 72) adjacent the narrowed portion (28) of the opening and at least a second size of antenna (86) larger than the at least first sized antenna (84) adjacent the divergent portion of the opening.
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公开(公告)号：EP2751585A1
公开(公告)日：2014-07-09
申请号：EP12769171.5
申请日：2012-09-04
IPC分类号： G01R33/36
CPC分类号： G01R33/3628 , G01R33/3621
摘要： A magnetic resonance (MR) system (10) minimizes noise for modes of an array of coils (28
1 , 28
2 ,..., 28
n ). The system (10) includes an array of coils (28
1 , 28
2 ,..., 28
n ) which share impedance. A plurality of preamplifiers (30
1 , 30
2 ,..., 30
n ) receive a plurality of signals from the array of coils (28
1 , 28
2 ,..., 28
n ), and a plurality of matching circuits (32
1 , 32
2 ,..., 32
n ) impedance match the array of coils (28
1 , 28
2 ,..., 28
n ) to the plurality of preamplifiers (30
1 , 30
2 ,..., 30
n ). A plurality of receivers (36
1 , 36
2 ,..., 36
n ) oversample the plurality of preamplified signals at a plurality of different match values. Thereafter, a plurality of separate images may be reconstructed from the oversampled data, each image corresponding to a particular match value. Finally, the image with the highest SNR may be selected.-
公开(公告)号：EP4365910A1
公开(公告)日：2024-05-08
申请号：EP22205852.1
申请日：2022-11-07
CPC分类号： G05B23/0254 , G05B23/024 , G06N3/08 , G06N20/00 , G16H40/20 , G16H40/40 , G06V20/52
摘要： In a medical environment (1) a cleaning process (2) for cleaning of surfaces (4) is to be improved. This is achieved by providing a system for monitoring a cleaning process (2) of a surface (4) in a medical environment (1). The system comprises at least one camera unit (8) for taking digital images of the medical environment (1), with at least one sensor for a 3D detection of the medical environment (1), at least one memory (11) storing instructions; and at least one processor (10) that executes the instructions. The processor is configured in such a way to cause the following to be performed: detecting a cleaning device (5) for applying a cleaning agent (7) to the surface in the medical environment (1) from a digital image taken by the camera unit (8) and/or detecting of at least one body part of a person (14) in the medical environment (1) from the digital image taken by the camera unit (8), tracking the cleaning device (5) along a cleaning trajectory (6) in the medical environment (1) and/or detecting at least one body part of the person (14) and tracking the body part of the person (14) in the medical environment (1), deriving a contact probability of the cleaning device (1) with the surface (4) from the cleaning trajectory (6) and/or deriving a contact probability of the at least one body part of the person (14) with the surface (4). The present invention also concerns a computer-implemented method for monitoring a cleaning process of a surface (4) in a medical environment (1). A computer-implemented method for training an artificial intelligence algorithm to evaluate data.
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公开(公告)号：EP4148449A1
公开(公告)日：2023-03-15
申请号：EP21196248.5
申请日：2021-09-13
发明人： GLEICH, Bernhard , DUENSING, George Randall , OVERWEG, Johannes Adrianus , BOERNERT, Peter , KEUPP, Jochen
IPC分类号： G01R33/383 , G01R33/385
摘要： Disclosed herein is a mechanical gradient magnetic field generator (100, 500, 1600. 1700, 2000, 2112) comprising a field generating element (102) comprising at least one generator layer (104). Each of the at least one generator layer comprises: a stationary divider (106); a movable divider (108) configured for moving in one (110) or two (1602) displacement directions; a mechanical element (112) configured to mechanically assist movement of the movable divider in the one or two displacement directions towards an initial position (508); and a set of rotatable magnets (114) positioned between the movable divider and the stationary divider. The set of rotatable magnets are mechanically coupled to the movable divider and to the stationary divider. The mechanical coupling of the set of rotatable magnets is such that movement of the movable divider in the one or two displacement directions causes an individual rotation of each of the set of rotatable magnets.
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公开(公告)号：EP3449270A1
公开(公告)日：2019-03-06
申请号：EP17720448.4
申请日：2017-04-26
发明人： BÖRNERT, Peter , NEHRKE, Kay , DONEVA, Mariya Ivanova , AMTHOR, Thomas Erik , KOKEN, Peter , DUENSING, George Randall
IPC分类号： G01R33/48 , G01R33/54 , G01R33/56 , G01R33/561 , G01R33/563 , G01R33/50 , G01R33/485 , G01R33/385
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8.发明公开
公开(公告)号：EP3377913A2
公开(公告)日：2018-09-26
申请号：EP16809655.0
申请日：2016-11-18
IPC分类号： G01R33/36 , H04L12/805
CPC分类号： G01R33/3692 , G01R33/543
摘要： An image acquisition system (100, 500, 600, 700). The image acquisition system may include at least one processor (110, 502-2, 610, 710) configured to control: a transmitter (112, 612) to form packets for transmission over a high-data-rate (HDR) wireless communication link (HDR-WCL) (124, 624), an image acquisition device (120, 631) to acquire image data and form HDR data, and a scheduler (114, 614) to acquire control information for controlling at least one function of the image acquisition system during the image acquisition, determine a restricted packet size for the packets of the HDR-WCL in accordance with at least deterministic timing requirements of the system, and determine a schedule for transmitting the control information in a corresponding packet of the packets in accordance with the deterministic timing requirements of the image acquisition system and the restricted packet size.
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9.发明公开MR IMAGING USING SHARED INFORMATION AMONG IMAGES WITH DIFFERENT CONTRAST 审中-公开磁共振成像使用通用信息在不同对比度的图像之间
公开(公告)号：EP2751586A2
公开(公告)日：2014-07-09
申请号：EP12791256.6
申请日：2012-10-10
发明人： HUANG, Feng , DUENSING, George Randall , LIN, Wei
IPC分类号： G01R33/54 , G01R33/565
CPC分类号： G01R33/56 , G01R33/243 , G01R33/246 , G01R33/543 , G01R33/5611 , G01R33/565 , G01R33/56509
摘要： A typical clinical MR protocol is composed of several sets of scans to acquired images with different contrast, such as T1, T2 and DWI. Currently, the acquisition and reconstruction of these images are processed individually. The proposed method treats the optimization of all acquisitions and reconstructions as one single procedure for faster and more robust MRI. The theory behind this concept is that the information such as B
0 , B
1 - field, optimized acquisition trajectory, reconstruction parameters, etc., can be shared among all scans for different contrasts since the same subject is scanned in the same system using the same RF coil. A method of magnetic resonance imaging includes performing a first magnetic 10 resonance scan sequence which saves a data store, and performing a second magnetic resonance scan sequence which uses a data store from the first magnetic resonance scan sequence. A magnet (10) generates a B
0 field in an examination region (12), a gradient coil system (14, 22) creates magnetic gradients in the examination region, and an RF system (16, 18, 20) induces resonance in and receives resonance signals from a subject in the 1 examination region. One or more processors (30) are programmed to perform a magnetic resonance pre-scan sequence to generate pre-scan information, perform a first sequence to generate first sequence data, refine the pre-scan information with the first sequence data, perform a second imaging sequence to generate second sequence data. Further, the second sequence data is either reconstructed using the refined pre-scan information or performed using the refined pre-scan sequence information.-
公开(公告)号：EP4224193A1
公开(公告)日：2023-08-09
申请号：EP22156238.2
申请日：2022-02-11
发明人： AMTHOR, Thomas Erik , BOERNERT, Peter , SCHUELKE, Christophe Michael Jean , DUENSING, George Randall
摘要： The invention relates to a method for optimizing an examination protocol for executing a magnetic resonance (MR) image acquisition from a body of a patient. It is an object of the invention to facilitate efficient implementation of accelerated (e.g., artificial intelligence-based) examination protocols that are a true or very close replacement for examination protocols already existing in clinical practice. It should be made possible to provide each individual clinic with specific optimized versions of their own standard examination protocols. As a solution, the method of the invention comprises the steps of: providing an examination protocol containing specifications of two or more imaging sequences; in a computer, executing at least one algorithm processing said examination protocol as an input to perform an optimization with regard to the speed of execution of the examination protocol, taking into account diagnostic relevance weightings assigned to the imaging sequences contained in the examination protocol; and making an output available representing said optimized examination protocol to a user and/or executing the MR image acquisition on an MR scanner based on said optimized examination protocol. Moreover, the invention relates to an MR scanner (1), to a computer (15) and to a computer program for an MR scanner (1).
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