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11. 发明申请

WO2003107026A1 MR DEVICE PROVIDED WITH DIFFERENTLY OPTIMIZED RF COIL ARRAYS 审中-公开
标题翻译：设备提供不同优化的射频线圈阵列
公开(公告)号：WO2003107026A1
公开(公告)日：2003-12-24
申请号：PCT/IB2003/002201
申请日：2003-06-10
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEUSSLER, Christoph, Günther , BÖRNERT, Peter
发明人： LEUSSLER, Christoph, Günther , BÖRNERT, Peter
IPC分类号： G01R33/3415
CPC分类号： G01R33/3415 , G01R33/5611
摘要： The present invention relates to an MR device for MR imaging as well as to an RF coil system for such an MR device. In order to enable switching to and fro between different applications in such an MR device without having to move the patient so as to position a new RF coil system, it is proposed in accordance with the invention to provide the RF coil system for the transmission and/or reception of RF signals with at least two RF coil arrays which are integrated in one coil former and have been optimized for different applications, each RF coil array comprising at least two RF coils which are decoupled from one another.
摘要翻译：本发明涉及用于MR成像的MR装置以及用于这种MR装置的RF线圈系统。为了实现这种MR装置中的不同应用之间的来回切换，而不必移动患者以便定位新的RF线圈系统，根据本发明提出了提供用于传输的RF线圈系统，或者具有至少两个RF线圈阵列的RF信号的接收，所述至少两个RF线圈阵列被集成在一个线圈架中，并且已针对不同的应用进行了优化，每个RF线圈阵列包括彼此分离的至少两个RF线圈。

12. 发明申请

WO2012143823A1 BLACK BLOOD MRI USING A STIMULATED ECHO PULSE SEQUENCE WITH FLOW SENSITIZATION GRADIENTS 审中-公开
标题翻译：使用刺激的ECHO脉冲序列与流感敏感度梯度的BLACK BLOOD MRI
公开(公告)号：WO2012143823A1
公开(公告)日：2012-10-26
申请号：PCT/IB2012/051776
申请日：2012-04-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , THE UNIVERSITY OF WASHINGTON , WANG, Jinnan , BÖRNERT, Peter , YUAN, Chun
发明人： WANG, Jinnan , BÖRNERT, Peter , YUAN, Chun
IPC分类号： G01R33/563
CPC分类号： G01R33/30 , G01R33/56316 , G01R33/5635
摘要： A black blood magnetic resonance imaging sequence is performed using a magnetic resonance scanner. The sequence includes: applying a first flow sensitization gradient; applying a spoiler gradient after applying the first flow sensitization gradient; applying a second flow sensitization gradient after applying the spoiler gradient wherein the second flow sensitization gradient has area equal to the first flow sensitization gradient but of opposite polarity; applying a slice-selective radio frequency excitation pulse after applying the spoiler gradient; and performing a magnetic resonance readout after applying the second flow sensitization gradient and after applying the slice selective radio frequency excitation. The readout acquires magnetic resonance imaging data having blood signal suppression in the region excited by the slice-selective radio frequency excitation pulse. The magnetic resonance imaging data is suitably reconstructed to generate a black blood image that may be displayed.
摘要翻译：使用磁共振扫描仪进行黑血液磁共振成像序列。该序列包括：应用第一流感敏化梯度; 在应用第一流感敏化梯度后应用扰流板梯度; 在施加扰流板梯度之后施加第二流动增感梯度，其中第二流动增感梯度具有等于第一流动增感梯度但具有相反极性的面积; 应用扰流板梯度后应用切片选择射频激励脉冲; 以及在施加第二流动增感梯度之后并且在施加切片选择性射频激发之后执行磁共振读出。读出器获取在由片选择射频激励脉冲激发的区域中具有血液信号抑制的磁共振成像数据。适当地重建磁共振成像数据以产生可以显示的黑血图像。

13. 发明申请

WO2004095050A1 MR IMAGING METHOD 审中-公开
标题翻译： MR成像方法
公开(公告)号：WO2004095050A1
公开(公告)日：2004-11-04
申请号：PCT/IB2004/050431
申请日：2004-04-14
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , ALDEFELD, Bernd , BÖRNERT, Peter
发明人： ALDEFELD, Bernd , BÖRNERT, Peter
IPC分类号： G01R33/56
CPC分类号： G01R33/4824 , G01R33/561
摘要： The invention relates to an MR method for generating an MR image of an object situated in an examination volume by using an MR apparatus. MR signal data (1) is first acquired by partial sampling of the spatial frequency space associated with the examination volume. An intermediate MR image (5) is then reconstructed from this MR signal data (1) with account taken of the non-idealities of the MR apparatus. To obtain an image quality in the reconstruction that is an improvement on the prior art, the invention proposes that the MR signal data (1) acquired be supplemented in the unsampled regions (2) of the spatial frequency space by calculating synthetic MR signal data (7) on the basis of the intermediate MR image (5). An intermediate MR image (5) is then again reconstructed from the MR signal data (3) that has been supplemented in this way. The quality of the intermediate MR image (5) can be improved iteratively in this way.
摘要翻译：本发明涉及一种用于通过使用MR装置产生位于检查体积中的物体的MR图像的MR方法。首先通过与检查体积相关联的空间频率空间的部分采样来获取MR信号数据（1）。然后从该MR信号数据（1）重建中间MR图像（5），并考虑到MR装置的非理想性。为了在现有技术的改进中获得重建中的图像质量，本发明提出通过计算合成MR信号数据（x），在空间频率空间的未采样区域（2）中补充获取的MR信号数据（1） 7）基于中间MR图像（5）。然后从已经以这种方式补充的MR信号数据（3）再次重建中间MR图像（5）。这样可以迭代地改进中间MR图像（5）的质量。

14. 发明授权

EP0782711B1 METHOD AND DEVICE FOR IMAGING A CURVED PORTION OF A BODY BY MEANS OF MAGNETIC RESONANCE 失效
标题翻译：拍摄由磁共振成像方法和装置歪的身体部位
公开(公告)号：EP0782711B1
公开(公告)日：2004-04-28
申请号：EP96921017.8
申请日：1996-07-11
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： BÖRNERT, Peter , SCHÄFFTER, Tobias , KUHN, Michael, Harald
IPC分类号： G01R33/483
CPC分类号： G01R33/4833
摘要： A magnetic resonance method for imaging a curved portion of a body through the use of pulse sequences which comprise RF pulses and temporary linear magnetic gradient fields. In known magnetic resonance methods a curved portion of a body is imaged by a sequence of plane slices, which together contains the curved portion. A drawback of the known method is that the acquisition of a sequence of plane slices is rather time consuming with the risk that the consecutive slices do not match perfect to each other because of body movements. In the method according to the invention only MR signals in the curved portion of the body are generated by pulse sequences which comprise RF pulses and temporary magnetic fields. From the received MR signals an image of the curved portion can be reconstructed by means of linear transformations.

15. 发明申请

WO2021001238A1 FMRI TASK SETTINGS WITH MACHINE LEARNING 审中-公开
公开(公告)号：WO2021001238A1
公开(公告)日：2021-01-07
申请号：PCT/EP2020/067679
申请日：2020-06-24
申请人： KONINKLIJKE PHILIPS N.V.
发明人： EWALD, Arne , LAMERICHS, Rudolf, Mathias, Johannes, Nicolaas , FLÄSCHNER, Nick , BERNHARD, Gleich , BÖRNERT, Peter , GRAESSLIN, Ingmar , OVERWEG, Johannes, Adrianus
IPC分类号： G06K9/62
摘要： The present disclosure relates to a medical imaging method, comprising: receiving (201) a set of subject parameters descriptive of a subject; in response to inputting (203) the set of subject parameters into a trained deep neural network, DNN, receiving (205) from the trained DNN a predicted task; presenting the task to the subject; controlling (207) an MRI system (700) for acquiring fMRI data from the subject in response to the predicted task performed by the subject during the acquisition.

16. 发明申请

WO2018115179A1 MRI METHOD FOR T1 MAPPING OF THE HEART USING A MAXIMUM LIKELIHOOD RECONSTRUCTION IN K-SPACE 审中-公开
公开(公告)号：WO2018115179A1
公开(公告)日：2018-06-28
申请号：PCT/EP2017/083917
申请日：2017-12-20
申请人： KONINKLIJKE PHILIPS N.V.
发明人： STEHNING, Christian , BÖRNERT, Peter , AMTHOR, Thomas, Erik , DONEVA, Mariya, Ivanova , SMINK, Jouke , KOUWENHOVEN, Marc
IPC分类号： G01R33/50 , G01R33/54 , G01R33/56 , G01R33/561 , G01R33/567 , A61B5/055 , A61B5/00
摘要： The invention provides for a magnetic resonance imaging system (100) for acquiring magnetic resonance data (146) from a subject (118) from a region of interest (109) within an imaging zone (108). The magnetic resonance imaging system comprises a memory (134) for storing machine executable instructions (140) and pulse sequence commands (142). The pulse sequence commands are configured for controlling the magnetic resonance imaging system to perform magnetization preparation pulses which causes magnetization inversion within the region of interest and initiates a T1 relaxation process. The pulse sequence commands are configured for acquiring portions of the magnetic resonance data as discrete units during a rest and relaxation interval of a heart phase of the subject. The magnetic resonance imaging system further comprises a processor (130) for controlling the magnetic resonance imaging system. Execution of the machine executable instructions causes the processor to repeatedly: receive (202) an ECG signal (124) descriptive of the heart phase of the subject; detect (204) an onset of the rest and relaxation interval of the heart phase using the ECG signal; acquire (206) a portion (146) of the magnetic resonance data a predetermined delay after the onset of the rest and relaxation interval by controlling (200) the magnetic resonance imaging system with the pulse sequence commands, wherein the portion of the magnetic resonance data undersamples k-space; determine (208) an inversion delay (308, 502) for the portion of the magnetic resonance data using a timing of the magnetization preparation pulses and the onset of the rest and relaxation interval. Execution of the machine executable instructions further causes the processor to calculate a T1 map (150) of the region of interest using a maximum likelihood reconstruction that uses the magnetic resonance data and the inversion delay for each portion of the magnetic resonance data.

17. 发明申请

WO2018178347A1 SELECTION OF MAGNETIC RESONANCE FINGERPRINTING DICTIONARIES FOR ANATOMICAL REGIONS 审中-公开
公开(公告)号：WO2018178347A1
公开(公告)日：2018-10-04
申请号：PCT/EP2018/058320
申请日：2018-03-30
申请人： KONINKLIJKE PHILIPS N.V.
发明人： BÖRNERT, Peter , AMTHOR, Thomas, Erik , DONEVA, Mariya, Ivanova , WENZEL, Fabian
IPC分类号： G01R33/56 , G01R33/561 , G01R33/24 , G01R33/44 , G01R33/48 , G01R33/50
摘要： The invention provides for a magnetic resonance imaging system (100) for acquiring MRF magnetic resonance data (144) from a subject (118) within a region of interest (109). The magnetic resonance imaging system comprises a processor (130) for controlling the magnetic resonance imaging system and a memory (134) for storing machine executable instructions (140) and MRF pulse sequence commands (142). The MRF pulse sequence commands are configured for controlling the magnetic resonance imaging system to acquire the MRF magnetic resonance data according to a magnetic resonance fingerprinting protocol. Execution of the machine executable instructions causes the processor to: acquire (200) the MRF magnetic resonance data for the region of interest by controlling the magnetic resonance imaging system with the MRF pulse sequence commands; receive (202) at least one magnetic resonance image (152) descriptive of the region of interest; identify (204) anatomical regions (156) within the region of interest using an anatomical model (154); select (206) a local magnetic resonance fingerprinting dictionary (158) from a set of magnetic resonance fingerprinting dictionaries for each of the anatomical regions, wherein the local magnetic resonance fingerprinting dictionary comprises a listing of calculated MRF signals for a set of predetermined substances specific to each of the anatomical regions; and calculate (208) a composition mapping (160) of the predetermined substances for each of the anatomical regions using the MRF magnetic resonance data and the local magnetic resonance fingerprinting dictionary, wherein the composition mapping is a spatial average within each of the anatomical regions.

18. 发明申请

WO2018104322A1 SIMPLIFIED NAVIGATION OF SPINAL MEDICAL IMAGING DATA 审中-公开
公开(公告)号：WO2018104322A1
公开(公告)日：2018-06-14
申请号：PCT/EP2017/081558
申请日：2017-12-05
申请人： KONINKLIJKE PHILIPS N.V.
发明人： LORENZ, Cristian , BÖRNERT, Peter , KLINDER, Tobias
IPC分类号： G01R33/56 , A61B6/00 , A61B5/00 , G06T7/00 , G06T19/00 , G01R33/50 , A61B6/03
摘要： The invention provides for a medical imaging system (700) comprising: a memory (734) for storing machine executable instructions (740), a display (732) for rendering a user interface (800), and a processor (730). Execution of the machine executable instructions causes the processor to receive (1000) three dimensional medical image data (746) descriptive of a region of interest (709) of a subject (718). The region of interest comprises a spine (200). Execution of the machine executable instructions further causes the processor to receive (1002) a set of spinal coordinate systems (748) each descriptive of a location and an orientation of spinal vertebrae in the three dimensional medical image data. The set of spinal coordinate systems further comprises a set of spine centerline positions (102) each positioned on a spine centerline (108). Execution of the machine executable instructions further causes the processor to receive (1004) a mapping (750) between the set of spinal coordinate systems and a simplified coordinate system. The simplified coordinate system comprises a spinal height (300) descriptive of a position along the spine centerline. The simplified coordinate system further comprises a rotational orientation relative to a local vertebrae orientation. The simplified coordinate system further comprises an offset from the spine centerline. Execution of the machine executable instructions further cause the processor to repeatedly receive (1006) a simplified coordinate (752) of the simplified coordinate system from the user interface. Execution of the machine executable instructions further cause the processor to repeatedly calculate (1008) a spinal image rendering (754). Calculating the spinal image rendering comprises using the mapping to transform the simplified coordinate into the set of spinal coordinate systems to determine an image location in the three dimensional medical image data. Execution of the machine executable instructions further cause the processor to repeatedly render (1010) the spinal image rendering on the display.

19. 发明申请

WO2018091612A1 PLANNING SUPPORT FOR SELECTIVE ARTERIAL SPIN LABELING MR IMAGING METHODS 审中-公开
公开(公告)号：WO2018091612A1
公开(公告)日：2018-05-24
申请号：PCT/EP2017/079514
申请日：2017-11-16
申请人： KONINKLIJKE PHILIPS N.V.
发明人： HELLE, Michael, Günter , BÖRNERT, Peter , VAN DE VEN, Kim, Cornelia , Carolina
IPC分类号： G01R33/54 , G01R33/563
摘要： The invention relates to a method of MR imaging of at least a portion of a body (10) placed in a main magnetic field within the examination volume of a MR device (1). It is an object of the invention to facilitate the planning of an arterial spin labeling (ASL) MR imaging session and to improve the image quality in perfusion weighted MR imaging. The method of the invention comprises the following steps: acquiring angiographic MR signal data by subjecting the portion of the examined body (10) to one or more MR angiography scans; deriving quantitative blood flow parameters from the angiographic MR signal data; - computing a labeling efficiency of an ASL sequence from the sequence parameters of the ASL sequence and from the quantitative blood flow parameters; optimizing the sequence parameters by maximizing the labeling efficiency; acquiring perfusion weighted MR signal data by subjecting the portion of the body to the ASL sequence; and - reconstructing a MR image from the perfusion weighted MR signal data. Moreover, the invention relates to a MR device (1) and to a computer program for a MR device (1).

20. 发明申请

WO2020173749A1 PARALLEL MR IMAGING USING WAVE-ENCODING 审中-公开
公开(公告)号：WO2020173749A1
公开(公告)日：2020-09-03
申请号：PCT/EP2020/054159
申请日：2020-02-18
申请人： KONINKLIJKE PHILIPS N.V.
发明人： ZHOU, Zechen , BÖRNERT, Peter
IPC分类号： G01R33/561 , G01R33/483
摘要： The invention relates to a method of MR imaging of an object (10) placed in an examination volume of a MR device (1). The method comprises the steps of: - generating MR signals by subjecting the object to an imaging sequence, - acquiring MR signal profiles in a Cartesian k-space sampling scheme, wherein each MR signal profile is acquired in the presence of a temporally constant magnetic field gradient along a readout direction and a sinusoidally modulated magnetic field gradient along a phase encoding direction, and - reconstructing an MR image from the acquired MR signal profiles taking the modulation scheme of the magnetic field gradients into account. The invention proposes that the frequency of the sinusoidal modulation of the magnetic field gradient is varied during acquisition of each MR signal profile. Moreover, the invention relates to a MR device for carrying out this method as well as to a computer program to be run on a MR device.

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