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1. 发明授权

EP2414861B1 MAGNETIC RESONANCE IMAGING WITH IMPROVED IMAGING CONTRAST 有权
标题翻译：具有改进的成像造影磁成像
公开(公告)号：EP2414861B1
公开(公告)日：2015-01-28
申请号：EP09776495.5
申请日：2009-03-31
申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
发明人： HETZER, Stefan , MILDNER, Toralf , MÖLLER, Harald
IPC分类号： G01R33/48 , G01R33/485 , G01R33/563 , G01R33/561 , G01R33/483 , G01R33/56 , G01R33/565
CPC分类号： G01R33/5616 , G01R33/4806 , G01R33/4818 , G01R33/482 , G01R33/4828 , G01R33/483 , G01R33/485 , G01R33/5607 , G01R33/56341 , G01R33/56366 , G01R33/56536 , G01R33/56554 , G01R33/56563

2. 发明授权

EP2735056B1 ANTENNE UND ANTENNENANORDNUNG FÜR MAGNETRESONANZ-ANWENDUNGEN 有权
标题翻译：天线和天线布置磁应用
公开(公告)号：EP2735056B1
公开(公告)日：2015-09-09
申请号：EP11743442.3
申请日：2011-07-22
申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
发明人： DRIESEL, Wolfgang , MILDNER, Toralf , SCHÄFER, Andreas , MÖLLER, Harald
IPC分类号： H01Q7/00 , H01Q7/04 , G01R33/36
CPC分类号： G01R33/36 , G01R33/34007 , G01R33/3415 , G01R33/3628 , G01R33/422 , H01Q7/005 , H01Q7/04

3. 发明公开

EP2735056A1 ANTENNE UND ANTENNENANORDNUNG FÜR MAGNETRESONANZ-ANWENDUNGEN 有权
标题翻译：天线ANTENNENANORDNUNGFÜRMAGNETRESONANZ-ANWENDUNGEN
公开(公告)号：EP2735056A1
公开(公告)日：2014-05-28
申请号：EP11743442.3
申请日：2011-07-22
申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
发明人： DRIESEL, Wolfgang , MILDNER, Toralf , SCHÄFER, Andreas , MÖLLER, Harald
IPC分类号： H01Q7/04 , H01Q7/00
CPC分类号： G01R33/36 , G01R33/34007 , G01R33/3415 , G01R33/3628 , G01R33/422 , H01Q7/005 , H01Q7/04
摘要： An antenna (100), which is designed for exciting and/or detecting a magnetic resonance in an object (1) under investigation, comprises a conductor loop (10) with an inner conductor (11) and a primary shield conductor (12), which form at least one waveguide, wherein the primary shield conductor (12) is interrupted by a gap (13), and wherein a secondary shield conductor (14) is provided which surrounds the primary shield conductor (12), wherein a dielectric (15) is arranged between the primary shield conductor (12) and the secondary shield conductor (14) and at least the gap is covered by the secondary shield conductor (14). An antenna arrangement which comprises a plurality of such antennas, a magnetic resonance device, and a method for magnetic resonance imaging or magnetic resonance spectroscopy are also described.
摘要翻译：设计用于激发和/或检测被研究对象（1）中的磁共振的天线（100）包括具有内部导体（11）和主屏蔽导体（12）的导体环（10）其形成至少一个波导，其中所述主屏蔽导体（12）被间隙（13）中断，并且其中设置有围绕所述主屏蔽导体（12）的次屏蔽导体（14），其中电介质（15））设置在主屏蔽导体（12）和次屏蔽导体（14）之间，并且至少该间隙被次屏蔽导体（14）覆盖。还描述了包括多个这样的天线的天线装置，磁共振装置和用于磁共振成像或磁共振光谱的方法。

4. 发明授权

EP3295202B1 METHOD AND DEVICE FOR MAGNETIC RESONANCE IMAGING WITH IMPROVED SENSITIVITY BY NOISE REDUCTION 有权
公开(公告)号：EP3295202B1
公开(公告)日：2018-07-25
申请号：EP15720915.6
申请日：2015-05-08
申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
发明人： MARSCHNER, Henrik , PAMPEL, André , MÖLLER, Harald
IPC分类号： G01R33/56 , G06T5/10 , G06T5/00
CPC分类号： G06T11/005 , A61B5/055 , A61B5/7203 , G01R33/5608 , G01R33/56545 , G06T3/0068 , G06T5/002 , G06T5/10 , G06T2207/10088 , G06T2207/20064 , G06T2207/30016
摘要： A method of image processing of magnetic resonance (MR) images for creating de-noised MR images, comprises the steps of providing image data sets including multiple complex MR images (S7), subjecting the MR images to a wavelet decomposition (S12) for creating coefficient data sets of wavelet coefficients (Sn,m) representing the MR images in a wavelet frequency domain, calculating normalized coefficient data sets of wavelet coefficients Formula (I) (S17), wherein the coefficient data sets are normalized with a quantitative amount of variation, in particular standard deviation Formula (II), of noise contributions included in the coefficient data sets (Sn,m), averaging the wavelet coefficients of each coefficient data set (S18) for providing averaged wavelet coefficients Formula (III) of the coefficient data sets, calculating phase difference maps (Δφn,m) for all coefficient data sets (S20), wherein the phase difference maps provide phase differences between the phase of each wavelet coefficient and the phase of the averaged wavelet coefficients Formula (III), calculating scaled averaged coefficient data sets of wavelet coefficients by scaling the averaged wavelet coefficients Formula (III) with scaling factors (Cn,m), which are obtained by comparing parts of the normalized wavelet coefficients of the normalized coefficient data sets Formula (I) that are in phase with the averaged wavelet coefficients Formula (III) (S22), calculating rescaled coefficient data sets of wavelet coefficients Formula (IV) (S24) by applying a transfer function Formula (V) on the coefficient data sets (Sn,m) and on the scaled averaged coefficient data sets, wherein the transfer function includes combined amplitude and phase filters, each depending on the normalized coefficient data sets Formula (I) and me phase difference maps (Δφn,m), resp., and subjecting the rescaled coefficient data sets to a wavelet reconstruction Formula (IV) (S25) for providing the denoised MR images.

5. 发明公开

EP2414861A1 MAGNETIC RESONANCE IMAGING WITH IMPROVED IMAGING CONTRAST 有权
标题翻译：具有改进的成像造影磁成像
公开(公告)号：EP2414861A1
公开(公告)日：2012-02-08
申请号：EP09776495.5
申请日：2009-03-31
申请人： Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
发明人： HETZER, Stefan , MILDNER, Toralf , MÖLLER, Harald
IPC分类号： G01R33/561 , G01R33/565
CPC分类号： G01R33/5616 , G01R33/4806 , G01R33/4818 , G01R33/482 , G01R33/4828 , G01R33/483 , G01R33/485 , G01R33/5607 , G01R33/56341 , G01R33/56366 , G01R33/56536 , G01R33/56554 , G01R33/56563
摘要： A method of magnetic resonance imaging of an object comprises the steps of arranging the object in a stationary magnetic field, subjecting the object to an excitation and encoding sequence of magnetic field gradients resulting in k-space sampling in two segments along the phase encoding direction, wherein the encoding sequence of the magnetic field gradients is selected such that the two segments in k-space are sampled along trajectories beginning with a central k-space line through the k-space center and continuing to opposite k-space borders of the two segments, collecting magnetic resonance signals created in the object, and reconstructing an image of the object based on the magnetic resonance signals, wherein one central k-space line is sampled in both of the two k-space segments, and intersegment phase and/or intensity deviations are corrected in both k-space segments using the magnetic resonance signals collected along the central k-space line. Furthermore, an imaging device for magnetic resonance imaging of an object is described.

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