专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

WO2011033401A1 IMAGE INTENSITY CORRECTION FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：磁共振成像的图像强度校正
公开(公告)号：WO2011033401A1
公开(公告)日：2011-03-24
申请号：PCT/IB2010/053556
申请日：2010-08-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HARVEY, Paul, R. , ROZIJN, Thomas, H. , IJPEREN, Gerrit, H. , PRINS, Willem, M. , MENS, Wilhelmus, R., M. , BENSCHOP, Franciscus, J., M.
发明人： HARVEY, Paul, R. , ROZIJN, Thomas, H. , IJPEREN, Gerrit, H. , PRINS, Willem, M. , MENS, Wilhelmus, R., M. , BENSCHOP, Franciscus, J., M.
IPC分类号： G01R33/565
CPC分类号： G01R33/5659
摘要： A magnetic resonance system comprises : a magnetic resonance scanner including a multi-channel transmit coil or coil system and a magnetic resonance receive element; and a digital processor configured to perform an imaging process including shimming the multi-channel transmit coil or coil system, acquiring a coil sensitivity map for the magnetic resonance receive element using the multi-channel transmit coil or coil system, acquiring a magnetic resonance image using the magnetic resonance receive element and the shimmed multi-channel transmit coil or coil system, and performing an intensity level correction on the acquired magnetic resonance image using the coil sensitivity map to generate a corrected magnetic resonance image.
摘要翻译：磁共振系统包括：包括多通道发射线圈或线圈系统和磁共振接收元件的磁共振扫描器; 以及数字处理器，被配置为执行包括对多通道发射线圈或线圈系统进行匀场的成像处理，使用多通道发射线圈或线圈系统获取用于磁共振接收元件的线圈灵敏度图，使用所述磁共振接收元件和所述散光多通道发射线圈或线圈系统，并且使用所述线圈灵敏度映射对获取的磁共振图像执行强度电平校正，以产生校正的磁共振图像。

72. 发明申请

WO2010028853A1 SPULENANORDNUNG FÜR EINEN MAGNETRESONANZTOMOGRAPHEN 审中-公开
标题翻译：线圈装置的磁性断层扫描
公开(公告)号：WO2010028853A1
公开(公告)日：2010-03-18
申请号：PCT/EP2009/006636
申请日：2009-09-14
申请人： UNIVERSITÄT DUISBURG-ESSEN , SOLBACH, Klaus
发明人： SOLBACH, Klaus
IPC分类号： G01R33/345 , G01R33/36
CPC分类号： G01R33/345 , G01R33/341 , G01R33/3415 , G01R33/3456 , G01R33/365 , G01R33/5612 , G01R33/5659
摘要： Zur Erzeugung eines in einer Hauptrichtung zumindest im wesentlichen räumlich homogen, magnetischen Wechselfelds wird zwei zumindest im wesentlichen parallel zueinander und zur Hauptrichtung verlaufenden, eng nebeneinander liegenden Leitungen (4), insbesondere an entgegengesetzten Enden hochfrequenter Wechselstrom mit einer Phasenverschiebung von zumindest im wesentlichen 90 oder 180 Grad zugeführt.
摘要翻译：在高频的相对端部在主方向上产生至少基本上空间均匀的交变磁场在两个至少基本上相互平行并横向延伸至主方向，紧密间隔的线（4），特别是交变电流具有至少大致90或180的相移度，分别。

73. 发明申请

WO2009152586A1 MRI APPARATUS AND METHOD WITH MOVING FIELD COMPONENT 审中-公开
标题翻译： MRI装置和移动场分量的方法
公开(公告)号：WO2009152586A1
公开(公告)日：2009-12-23
申请号：PCT/AU2009/000797
申请日：2009-06-19
申请人： THE UNIVERSITY OF QUEENSLAND , CROZIER, Stuart
发明人： CROZIER, Stuart
IPC分类号： G01R33/341 , G01R33/20 , G01R33/44 , A61B5/055 , G01R33/42
CPC分类号： G01R33/5659 , G01R33/34007 , G01R33/3635 , G01R33/422 , G01R33/446 , G01R33/5611 , G01R33/5612
摘要： Apparatus for use in a magnetic resonance imaging system, the imaging system generating a magnetic imaging field in an imaging region (5), the apparatus including at least one coil for at least one of transmitting, receiving or transceiving an electromagnetic field, a field component (4) (such as a coil or a shield) and a drive (6) coupled to the field component for moving the field component (4) relative to the imaging region (5) to thereby modify the electromagnetic field during imaging process. The same concept can also be applied to nuclear imaging or nuclear spectroscopy apparatus.
摘要翻译：一种用于磁共振成像系统的装置，所述成像系统在成像区域（5）中产生磁性成像场，所述装置包括至少一个用于发射，接收或收发电磁场的线圈，场分量（4）（例如线圈或屏蔽）和耦合到场分量的驱动器（6），用于相对于成像区域（5）移动场分量（4），从而在成像过程期间修改电磁场。同样的概念也可以应用于核成像或核光谱仪器。

74. 发明申请

WO2009128764A1 IMPROVEMENT IN MAGNETIC RESONANCE IMAGING RELATING TO CORRECTION OF CHEMICAL SHIFT ARTIFACT AND INTENSITY INHOMOGENEITY 审中-公开
标题翻译：关于化学转换法和强度不均匀性校正的磁共振成像的改进
公开(公告)号：WO2009128764A1
公开(公告)日：2009-10-22
申请号：PCT/SE2009000195
申请日：2009-04-17
申请人： DAHLQVIST LEINHARD OLOF , BORGA MAGNUS , LUNDBERG PETER
发明人： DAHLQVIST LEINHARD OLOF , BORGA MAGNUS , LUNDBERG PETER
IPC分类号： G01R33/54 , G01R33/56
CPC分类号： G01R33/4828 , G01R33/5608 , G01R33/56527 , G01R33/5659
摘要： Present invention discloses systems and methods for improvement of magnetic resonance images. Correction of a chemical shift artefact in an image acquired from a magnetic resonance imaging system is obtained by a system and a method involving iterative - compensation for the misregistration effect in an image domain. Correction of an intensity inhomogeneity in such images is obtained by a system and a method involving locating voxels corresponding to pure adipose tissue and estimating correction field from these points.
摘要翻译：本发明公开了用于改善磁共振图像的系统和方法。从磁共振成像系统获取的图像中的化学位移伪像的校正是通过对图像域中的对准失调效应进行迭代补偿的系统和方法来获得的。通过系统和方法来获得这种图像中的强度不均匀性的校正，该系统和方法涉及定位与纯脂肪组织相对应的体素并从这些点估计校正场。

75. 发明申请

WO2009074965A1 TRANSMIT/RECEIVE COIL FOR ULTRA-HIGH FIELD MRI 审中-公开
标题翻译：用于超声场MRI的发射/接收线圈
公开(公告)号：WO2009074965A1
公开(公告)日：2009-06-18
申请号：PCT/IB2008/055234
申请日：2008-12-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , ZHAI, Zhiyong , GAUSS, Robert Charles , WONG, Eddy Yu Ping , MORICH, Michael , NIEMAN, Kevin Mitchell , DEMEESTER, Gordon
发明人： ZHAI, Zhiyong , GAUSS, Robert Charles , WONG, Eddy Yu Ping , MORICH, Michael , NIEMAN, Kevin Mitchell , DEMEESTER, Gordon
IPC分类号： G01R33/3415
CPC分类号： G01R33/3415 , G01R33/5659
摘要： A magnetic resonance coil comprises a first set of coil elements (54, 56, 80) operatively connectable with a transmit channel (66, 74) to couple with a transmit region of sensitivity for a selected load at a magnetic field strength greater than 3 Tesla, and a second set of coil elements (52, 54, 82) operatively connectable with a receive channel (66, 74) to couple with a receive region of sensitivity for the selected load at the magnetic field strength greater than 3 Tesla. The first set of coil elements is arranged proximate to but not surrounding the transmit region of sensitivity, and the second set of coil elements is arranged proximate to but not surrounding the receive region of sensitivity. The first set of coil elements and the second set of coil elements having at least one coil element (52, 56) not in common. The first and second sets of coil elements define transmit and receive regions of sensitivity for the selected load at the magnetic field strength greater than 3 Tesla that are substantially similar.
摘要翻译：磁共振线圈包括可操作地与发射通道（66,74）连接的第一组线圈元件（54,56,80），以与大于3特斯拉的磁场强度的选定负载的灵敏度的发射区域耦合以及第二组线圈元件（52,54,82），其可操作地与接收通道（66,74）连接，以在大于3特斯拉的磁场强度下与所选择的负载的接收灵敏度区域耦合。第一组线圈元件布置成靠近但不围绕灵敏度的发射区域，并且第二组线圈元件布置成接近但不包围灵敏度的接收区域。第一组线圈元件和第二组线圈元件具有不共同的至少一个线圈元件（52,56）。第一组和第二组线圈元件在大于3特斯拉的大于3特斯拉的磁场强度下为所选择的载荷定义灵敏度的发射和接收区域。

76. 发明申请

WO2009043491A1 STREIFENLEITER-ANTENNE UND ANTENNENANORDNUNG FÜR EIN MAGNETRESONANZGERÄT 审中-公开
标题翻译：条纹线天线和天线布置的磁性器件
公开(公告)号：WO2009043491A1
公开(公告)日：2009-04-09
申请号：PCT/EP2008/007899
申请日：2008-09-19
申请人： MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V. , DRIESEL, Wolfgang , MÖLLER, Harald
发明人： DRIESEL, Wolfgang , MÖLLER, Harald
IPC分类号： G01R33/3415 , G01R33/345
CPC分类号： G01R33/345 , G01R33/3415 , G01R33/3453 , G01R33/3635 , G01R33/5659
摘要： Eine Antenne (100) für ein Magnetresonanzgerät, die eine vorbestimmte Empfindlichkeit aufweist und für eine Anregung und/oder Erfassung einer Magnetresonanz in einem zu untersuchenden Objekt eingerichtet ist, umfasst einen Streifenleiter-Resonator (10), der mindestens einen Streifenleiter (11) aufweist, und eine Leiterschleifen-Anordnung (20), die an den Streifenleiter-Resonator (10) angrenzend angeordnet ist und mindestens eine Leiterschleife (21, 22, 28) bildet, die mit mindestens einem Kondensator (23) unterbrochen ist, wobei die Empfindlichkeit der Antenne (100) durch überlagerte Empf indlichkeitsprof ile des Streifenleiter-Resonators (10) und der Leiterschleifen-Anordnung (20) gebildet wird. Es werden auch eine Antennenanordnung (200) mit einer Vielzahl von Antennen (100), ein Magnetresonanzgerät (300) mit mindestens einer Antenne (100) oder Antennenanordnung (200) und Verfahren zur Magnetresonanz-Bildgebung oder Magnetresonanz-Spektroskopie beschrieben.
摘要翻译：用于磁共振装置的天线（100），具有预定的灵敏度和用于激发和/或磁共振检测被设置在要被检查的对象包括具有至少一个条形导体的带状线谐振器（10）（11），和其相邻的带状线谐振器（10）和至少一个导体环（21，22，28），所述至少一个电容器（23），其设置的导体回路装置（20）被中断，则天线的方法，其中灵敏度（100）是由叠加接收机indlichkeitsprof带状线谐振器（10）和导体回路装置（20）的形成ILE。也有描述了具有多个天线（100）的天线装置（200），其具有至少一个天线（100）或用于磁共振成像或磁共振波谱天线组件（200）和方法的磁共振装置（300）。

77. 发明申请

WO2008064365A9 MULTI-CHANNEL MAGNETIC RESONANCE COIL ARRAY ASSEMBLY 审中-公开
标题翻译：多通道磁共振线圈阵列
公开(公告)号：WO2008064365A9
公开(公告)日：2008-08-21
申请号：PCT/US2007085501
申请日：2007-11-26
申请人： MR INSTR INC , BRADSHAW KENNETH M , JONES MICHAEL S , HOLWELL JOSHUA J , SCHILLAK SCOTT M , WAKS MATTHEW T , WATSON MARK A , TRAMM BRANDON J , PETROPOULOS LABROS L
发明人： BRADSHAW KENNETH M , JONES MICHAEL S , HOLWELL JOSHUA J , SCHILLAK SCOTT M , WAKS MATTHEW T , WATSON MARK A , TRAMM BRANDON J , PETROPOULOS LABROS L
IPC分类号： G01R33/34 , G01R33/3415
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/345 , G01R33/3453 , G01R33/3642 , G01R33/365 , G01R33/422 , G01R33/5659
摘要： This document discusses, among other things, a system and method for a coil array having a plurality of resonant elements capable of radiof requency transmission, reception, or both transmission and reception. One example includes a receive-only coil disposed within a transmit-only coil. Adjacent resonant elements are decoupled from one another by both capacitive elements and by the geometric configuration of the elements. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.
摘要翻译：本文件尤其涉及一种线圈阵列的系统和方法，该系统和方法具有能够进行无线电频率传输，接收或传输和接收两者的多个谐振元件。一个示例包括设置在仅发射线圈内的仅接收线圈。相邻的谐振元件通过电容元件和元件的几何构型彼此分离。电缆耦合到每个谐振元件并以特定的方式聚集在结点处。

78. 发明申请

WO2008064365A3 MULTI-CHANNEL MAGNETIC RESONANCE COIL ARRAY ASSEMBLY 审中-公开
标题翻译：多通道磁共振线圈阵列组件
公开(公告)号：WO2008064365A3
公开(公告)日：2008-07-10
申请号：PCT/US2007085501
申请日：2007-11-26
申请人： MR INSTR INC , BRADSHAW KENNETH M , JONES MICHAEL S , HOLWELL JOSHUA J , SCHILLAK SCOTT M , WAKS MATTHEW T , WATSON MARK A , TRAMM BRANDON J , PETROPOULOS LABROS L
发明人： BRADSHAW KENNETH M , JONES MICHAEL S , HOLWELL JOSHUA J , SCHILLAK SCOTT M , WAKS MATTHEW T , WATSON MARK A , TRAMM BRANDON J , PETROPOULOS LABROS L
IPC分类号： G01R33/34 , G01R33/3415
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/345 , G01R33/3453 , G01R33/3642 , G01R33/365 , G01R33/422 , G01R33/5659
摘要： This document discusses, among other things, a system and method for a coil array having a plurality of resonant elements capable of radiof requency transmission, reception, or both transmission and reception. One example includes a receive-only coil disposed within a transmit-only coil. Adjacent resonant elements are decoupled from one another by both capacitive elements and by the geometric configuration of the elements. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.
摘要翻译：本文件尤其讨论了用于具有能够进行射频频率传输，接收或发射和接收两者的多个谐振元件的线圈阵列的系统和方法。一个示例包括设置在仅发射线圈内的只收线圈。相邻的谐振元件通过电容元件和元件的几何配置彼此解耦。电缆被耦合到每个谐振元件并且以特定方式聚集在接合点处。

79. 发明申请

WO2007146978A1 SILENT AND THIN RF BODY COIL 审中-公开
标题翻译：静音和薄型RF身体线圈
公开(公告)号：WO2007146978A1
公开(公告)日：2007-12-21
申请号：PCT/US2007/071074
申请日：2007-06-13
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , HAM, Kees , TUITHOF, Hans
发明人： HAM, Kees , TUITHOF, Hans
IPC分类号： G01R33/34 , G01R33/565 , G01R33/422 , G01R33/385
CPC分类号： G01R33/565 , G01R33/34076 , G01R33/3453 , G01R33/3854 , G01R33/422 , G01R33/56509 , G01R33/5659
摘要： An imaging subject (16) is disposed in an examination region (12) for examination. A cover (18) is disposed around the examination region (12). Magnetic field gradient coils (30) impose selected magnetic field gradients on a main magnetic field (B 0 ) within the examination region (12). A radio frequency (RF) coil (36) generates radio frequency excitation pulses in the examination region (12), the radio frequency coil (36) including a plurality of coil elements (38 1 , 38 2 , 38 3 ) disposed on the cover (18) distally from the examination region (12). A radio frequency (RF) screen (40) associated with the coil elements (38 1 , 38 2 , 38 3 ) shields the coil elements (38 1 , 38 2 , 38 3 ) and is disposed about the gradient coils (30) such that the coil elements (38 1 , 38 2 , 38 3 ) are mechanically decoupled from the RF screen (40) and substantially acoustically isolated from the RF screen (40) and gradient coils (30).
摘要翻译：成像对象（16）被布置在检查区域（12）中用于检查。在检查区域（12）周围设置盖（18）。磁场梯度线圈（30）将选定的磁场梯度施加在检查区域（12）内的主磁场（B 0）上。射频（RF）线圈（36）在检查区域（12）中产生射频激励脉冲，射频线圈（36）包括多个线圈元件（38 <1>，38

80. 发明申请

WO2005055136A2 METHOD AND APPARATUS FOR PHASE-SENSITIVE MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：用于相敏磁共振成像的方法和装置
公开(公告)号：WO2005055136A2
公开(公告)日：2005-06-16
申请号：PCT/US2004/039460
申请日：2004-11-24
申请人： BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM , MA, Jingfei
发明人： MA, Jingfei
IPC分类号： G06T
CPC分类号： G01R33/56563 , G01R33/4828 , G01R33/5602 , G01R33/5659
摘要： Systems and methods are described for phase-sensitive magnetic resonance imaging using an efficient and robust phase correction algorithm. A method includes obtaining a plurality of MRI data signals, such as two-point Dixon data, one-point Dixon data, or inversion recovery prepared data. The method further includes implementing a phase-correction algorithm, that may use phase gradients between the neighboring pixels of an image. At each step of the region growing, the method uses both the amplitude and phase of pixels surrounding a seed pixel to determine the correct orientation of the signal for the seed pixel. The method also includes using correlative information between images from different coils to ensure coil-to-coil consistency, and using correlative information between two neighboring slices to ensure slice-to-slice consistency. A System includes a MRI scanner to obtain the data signals, a controller to reconstruct the images from the data signals and implement the phase-correction algorithm, and an output device to display phase sensitive MR images such as fat-only images and/or water-only images.
摘要翻译：使用有效和鲁棒的相位校正算法描述了用于相敏磁共振成像的系统和方法。一种方法包括获得多个MRI数据信号，例如两点Dixon数据，一点Dixon数据或反演恢复准备数据。该方法还包括实现可以使用图像的相邻像素之间的相位梯度的相位校正算法。在区域生长的每个步骤中，该方法使用种子像素周围的像素的幅度和相位来确定种子像素的信号的正确取向。该方法还包括使用来自不同线圈的图像之间的相关信息来确保线圈到线圈的一致性，以及使用两个相邻切片之间的相关信息来确保切片到切片的一致性。系统包括用于获取数据信号的MRI扫描器，控制器，用于根据数据信号重建图像并实现相位校正算法;以及输出设备，用于显示诸如仅脂肪图像和/或水的相位敏感MR图像 - 只有图像。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式