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11. 发明申请

US20100191098A1 METHOD TO TRACK A CONTRAST AGENT IN A MAGNETIC RESONANCE TOMOGRAPHY EXAMINATION 审中-公开
标题翻译：跟踪磁共振血管造影检查中的对比剂的方法
公开(公告)号：US20100191098A1
公开(公告)日：2010-07-29
申请号：US12692079
申请日：2010-01-22
申请人： Susanne Ladd , Michael Zenge
发明人： Susanne Ladd , Michael Zenge
IPC分类号： A61B5/055
CPC分类号： G01R33/56375 , A61B5/0555 , A61B5/7257 , G01R33/5601 , G01R33/5635 , G01R33/56383
摘要： A method tracks contrast agent in a magnetic resonance tomography examination with examination table moving continuously in the Z-direction. In the method, a first magnetic resonance signal in a first magnetic resonance measurement without contrast agent. The first MR signal is acquired along a middle k-space line that runs essentially in the Z-direction. Values of k-space along the middle k-space line of the first MR signal are transformed by means of a Fourier transformation in the Z-direction in order to obtain a first profile of the signal intensity in the Z-direction. After a contrast agent injection, a second MR signal is acquired in a second magnetic resonance measurement. The second MR signal is acquired along the middle k-space line. Values of k-space along the middle k-space line of the second MR signal are transformed by a Fourier transformation only in the Z-direction in order to obtain a second profile of the signal intensity with contrast agent in the Z-direction. A difference profile is determined from the first profile and the second profile. A signal jump in the difference profile is used to determine a propagation edge of the contrast agent.
摘要翻译：一种在磁共振断层扫描检查中跟踪造影剂的方法，检查台在Z方向上连续移动。在该方法中，在没有造影剂的第一磁共振测量中的第一磁共振信号。第一MR信号沿着基本上在Z方向上运行的中间k空间线获取。通过在Z方向上的傅立叶变换来变换沿着第一MR信号的中间k空间线的k空间的值，以获得Z方向上的信号强度的第一轮廓。造影剂注射后，在第二磁共振测量中获取第二MR信号。沿着中间k空间线获取第二MR信号。通过仅在Z方向上的傅里叶变换来变换沿着第二MR信号的中间k空间线的k空间的值，以便获得Z方向上的造影剂的信号强度的第二轮廓。从第一轮廓和第二轮廓确定差异轮廓。使用差分曲线中的信号跳跃来确定造影剂的传播边缘。

12. 发明申请

US20100160766A1 MAGNETIC RESONANCE METHOD AND SYSTEM FOR FLOW MEASUREMENT 审中-公开
标题翻译：用于流量测量的磁共振方法和系统
公开(公告)号：US20100160766A1
公开(公告)日：2010-06-24
申请号：US12629375
申请日：2009-12-02
申请人： Andreas Greiser , Jens Guehring , Mehmet Akif Guelsuen , Arne Littmann , Peter Schmitt , Michael Zenge
发明人： Andreas Greiser , Jens Guehring , Mehmet Akif Guelsuen , Arne Littmann , Peter Schmitt , Michael Zenge
IPC分类号： A61B5/055
CPC分类号： A61B5/0263 , A61B5/055 , A61B5/489 , G01R33/543 , G01R33/546 , G01R33/56316 , G01R33/5635
摘要： In a method for flow measurement with a magnetic resonance system and a correspondingly designed magnetic resonance system angiography measurement data of a volume are obtained within a body to be examined, a vessel is determined depending on a user input by means of the angiography measurement data, dimensions and an orientation of the vessel are automatically determined from the angiography measurement data, a slice geometry for the flow measurement is automatically determined depending on the dimensions and the orientation, and the flow measurement is implemented using the slice geometry.
摘要翻译：在使用磁共振系统和相应设计的磁共振系统进行流量测量的方法中，在待检查的体内获得体积的血管造影测量数据，根据用户输入通过血管造影测量数据确定血管，根据血管造影测量数据自动确定容器的尺寸和取向，根据尺寸和取向自动确定流量测量的切片几何形状，并使用切片几何形状实现流量测量。

13. 发明授权

US08879809B2 Method to process medical image data 有权
标题翻译：处理医学图像数据的方法
公开(公告)号：US08879809B2
公开(公告)日：2014-11-04
申请号：US13569380
申请日：2012-08-08
申请人： Edgar Müller , Peter Speier , Michael Zenge
发明人： Edgar Müller , Peter Speier , Michael Zenge
IPC分类号： G06T7/00 , G01R33/54 , G01R33/56 , H04N19/60 , G01R33/561 , A61B6/00
CPC分类号： G01R33/543 , A61B6/5211 , G01R33/5608 , G01R33/5611 , H04N19/60
摘要： A method to process medical image data has the following features. Immediately compressed raw data are acquired by an imaging medical technology apparatus. The compressed raw data are stored. In addition to the compressed raw data, processing data are stored which are provided to generate output data from the compressed raw data, wherein the file size of the compressed raw data and the processing data in total is less than the file size of the output data.
摘要翻译：处理医学图像数据的方法具有以下特征。立即压缩的原始数据由成像医疗技术装置获取。压缩的原始数据被存储。除了压缩的原始数据之外，存储处理数据，其被提供以从压缩原始数据生成输出数据，其中压缩原始数据的文件大小和处理数据总共小于输出数据的文件大小。

14. 发明授权

US08648594B2 Method and device for uniform radial data acquisition in three-dimensional K-space in an MR measurement for a magnetic resonance system 有权
标题翻译：用于磁共振系统的MR测量中三维K空间中均匀径向数据采集的方法和装置
公开(公告)号：US08648594B2
公开(公告)日：2014-02-11
申请号：US12912096
申请日：2010-10-26
申请人： Davide Piccini , Michael Zenge
发明人： Davide Piccini , Michael Zenge
IPC分类号： G01R33/561 , G01R33/48
CPC分类号： G01R33/561 , G01R33/4824
摘要： For radial data acquisition in three-dimensional k-space in an MR measurement for a magnetic resonance system, data in k-space are acquired along straight-line spokes. Each of the spokes is thereby defined by a point on a sphere and the center point of this sphere, wherein the center point corresponding to the center of k-space. The points are arranged on the sphere such that a distribution of the points obeys the spiral phyllotaxis, in particular the Fibonacci phyllotaxis.
摘要翻译：对于用于磁共振系统的MR测量中的三维k空间中的径向数据采集，沿着直线辐条获取k空间中的数据。因此，每个辐条由球体上的点和该球体的中心点限定，其中对应于k空间中心的中心点。这些点被排列在球体上，使得点的分布遵循螺旋叶片，特别是斐波那契叶脉。

15. 发明授权

US08634623B2 Correction of artifacts in time-of-flight MR angiography 有权
标题翻译：飞行时间MR血管造影术中人造物的修正
公开(公告)号：US08634623B2
公开(公告)日：2014-01-21
申请号：US12624478
申请日：2009-11-24
申请人： Peter Schmitt , Michael Zenge
发明人： Peter Schmitt , Michael Zenge
IPC分类号： A61B6/03
CPC分类号： A61B6/03 , A61B5/02007 , A61B5/055 , G01R33/4835 , G01R33/4838 , G01R33/5601 , G01R33/5635 , G06T5/008 , G06T2207/10088 , G06T2207/30101
摘要： In a method and magnetic resonance (MR) apparatus for correction of artifacts in time-of-flight (TOF) MR angiography, MR signals are acquired in a target volume with the TOF MR angiography technique to generate multiple MR angiography images, pixels with background signal are identified in the angiography images by separation of these pixels from noise and vessel pixels, a signal profile of the pixels with background signal is determined across the target volume, and the MR signal of a predetermined set of pixels of the target volume is normalized with the signal profile of the pixels with background signal.
摘要翻译：在用于校正飞行时间（TOF）MR血管造影中伪像的方法和磁共振（MR）装置中，使用TOF MR血管造影技术在目标体积中获取MR信号以产生多个MR血管造影图像，具有背景的像素通过将这些像素与噪声和血管像素分离，在血管造影图像中识别信号，在目标体积上确定具有背景信号的像素的信号分布，并且将目标体积的预定像素集合的MR信号归一化具有背景信号的像素的信号分布。

16. 发明授权

US08598873B2 Magnetic resonance method and apparatus for time-resolved acquisition of magnetic resonance data 有权
标题翻译：用于时间分辨采集磁共振数据的磁共振方法和装置
公开(公告)号：US08598873B2
公开(公告)日：2013-12-03
申请号：US12700191
申请日：2010-02-04
申请人： Stephan Kannengiesser , Peter Schmitt , Michael Zenge
发明人： Stephan Kannengiesser , Peter Schmitt , Michael Zenge
IPC分类号： A61B5/055 , G01R33/563 , G01R33/561
CPC分类号： G01R33/56375 , A61B5/0555 , G01R33/5619 , G01R33/56308 , G01R33/56383
摘要： In a method and apparatus for time-resolved acquisition of magnetic resonance (MR) data, an examination subject is continuously moved through the examination region of an MR scanner, and MR signals are acquired. Prior to the acquisition of MR signals, a phase coding that corresponds to a position for data entry in k-space is carried out. An interruption of the movement of the subject takes place at a predetermined table position, and the acquisition of MR signals is continued over the course of a predetermined time period, while the subject is at rest in the predetermined position. At least while the subject is at rest, the phase coding causes acquisition of a predetermined number of MR signals for filling a first region of k-space to alternate with MR data and a predetermined number of MR signals for filling a second region of k-space.
摘要翻译：在用于时间分辨获取磁共振（MR）数据的方法和装置中，检查对象连续移动通过MR扫描器的检查区域，并且获取MR信号。在获取MR信号之前，执行对应于k空间中的数据输入位置的相位编码。被检体的动作的中断发生在规定的工作台位置，并且在预定时间段内持续进行MR信号的采集，同时被检体在预定位置处于静止状态。至少在被摄体处于静止状态时，相位编码使得获得预定数量的MR信号用于填充k空间的第一区域以与MR数据交替并且预定数量的MR信号用于填充k-空间的第二区域，空间。

17. 发明申请

US20130289912A1 EIGEN-VECTOR APPROACH FOR COIL SENSITIVITY MAPS ESTIMATION 审中-公开
标题翻译：用于线圈灵敏度估计的EIGEN-VECTOR方法
公开(公告)号：US20130289912A1
公开(公告)日：2013-10-31
申请号：US13779999
申请日：2013-02-28
申请人： Jun Liu , Hui Xue , Marcel Dominik Nickel , Ti-chiun Chang , Mariappan S. Nadar , Alban Lefebvre , Edgar Mueller , Qiu Wang , Zhili Yang , Nirmal Janardhanan , Michael Zenge
发明人： Jun Liu , Hui Xue , Marcel Dominik Nickel , Ti-chiun Chang , Mariappan S. Nadar , Alban Lefebvre , Edgar Mueller , Qiu Wang , Zhili Yang , Nirmal Janardhanan , Michael Zenge
IPC分类号： G01R33/24
CPC分类号： G01R33/243 , G01R33/246 , G01R33/5611
摘要： A method for estimating a coil sensitivity map for a magnetic resonance (MR) image includes providing (61) a matrix A of sliding blocks of a 2D image of coil calibration data, calculating (62) a left singular matrix V∥ from a singular value decomposition of A corresponding to τ leading singular values, calculating (63) P=V∥V∥H, calculating (64) a matrix S that is an inverse Fourier transform of a zero-padded matrix P, and solving (65) MHcr=(Sr)Hcr for cr, where cr is a vector of coil sensitivity maps for all coils at spatial location r, and M  ( ( 1 1 … 1 0 0 … 0 … … … 0 0 … 0 )  ( 0 0 … 0 1 1 … 1 … … … 0 0 … 0 )   …   ( 0 0 … 0 0 0 … 0 … … … 1 1 … 1 ) ) .
摘要翻译：用于估计磁共振（MR）图像的线圈灵敏度映射的方法包括提供（61）线圈校准数据的2D图像的滑块的矩阵A，从奇异值计算（62）左奇异矩阵V∥ 计算（63）P = V || V | H，计算（64）作为零填充矩阵P的逆傅里叶变换的矩阵S，求解（65）MHcr = （Sr）Hcr，其中cr是空间位置r处所有线圈的线圈灵敏度图的向量，M（（1 1 ... 1 0 0 ... 0 ... ... ... 0 0 ... 0）0（0 0 ... 0 1 1 ... 1 ... ... ... 0 0 ... 0） 0 0 0 ... 0 ... ... ... 1 1 ... 1））。

18. 发明授权

US08447381B2 Method and apparatus for controlling a contrast agent injection for magnetic resonance imaging 有权
标题翻译：用于控制造影剂注射用于磁共振成像的方法和装置
公开(公告)号：US08447381B2
公开(公告)日：2013-05-21
申请号：US12698276
申请日：2010-02-02
申请人： Stefan Assmann , Andrea Hopf , Christof Krellmann , Michaela Schmidt , Peter Schmitt , Michael Zenge
发明人： Stefan Assmann , Andrea Hopf , Christof Krellmann , Michaela Schmidt , Peter Schmitt , Michael Zenge
IPC分类号： A61B5/055
CPC分类号： A61M5/007 , A61B5/055 , A61B5/7435 , A61M2205/3553 , A61M2205/3561 , A61M2205/502 , G01R33/546 , G01R33/5601 , G06F19/00 , G06F19/321 , G06F19/3468
摘要： In a method and magnetic resonance system for controlling a contrast agent injector used with a magnetic resonance imaging scanner of the system, a user interface is displayed at the control panel of the scanner, for configuring the operating parameters of the injector connected to the magnetic resonance imaging scanner and for controlling the injector in accordance with the operating parameters configured on said user interface, from the scanner control panel.
摘要翻译：在用于控制与系统的磁共振成像扫描仪一起使用的造影剂注射器的方法和磁共振系统中，在扫描器的控制面板处显示用户界面，用于配置连接到磁共振的喷射器的操作参数成像扫描器和用于根据在所述用户界面上配置的操作参数从扫描器控制面板控制喷射器。

19. 发明申请

US20130121554A1 IMAGE RECONSTRUCTION USING REDUNDANT HAAR WAVELETS 有权
标题翻译：使用冗余HAAR波段的图像重建
公开(公告)号：US20130121554A1
公开(公告)日：2013-05-16
申请号：US13616484
申请日：2012-09-14
申请人： Jun Liu , Jeremy Rapin , Alban Lefebvre , Mariappan S. Nadar , Ti-chiun Chang , Michael Zenge , Edgar Müller
发明人： Jun Liu , Jeremy Rapin , Alban Lefebvre , Mariappan S. Nadar , Ti-chiun Chang , Michael Zenge , Edgar Müller
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G01R33/482 , G01R33/5611 , G01R33/5619 , G01R33/56308
摘要： A method for image reconstruction includes receiving under-sampled k-space data, determining a data fidelity term of a first image of the under-sampled k-space data in view of a second image of the under-sampled k-space data, wherein a time component separated the first image and the second image, determining a spatial penalization on redundant Haar wavelet coefficients of the first image in view of the second image, and optimizing the first image according the data fidelity term and the spatial penalization, wherein the spatial penalization selectively penalizes temporal coefficients and an optimized image of the first image is output.
摘要翻译：一种用于图像重构的方法包括：接收未被采样的k空间数据，鉴于未被采样的k空间数据的第二图像，确定未被采样的k空间数据的第一图像的数据保真度项，其中时间分量分离第一图像和第二图像，根据第二图像确定第一图像的冗余Haar小波系数的空间惩罚，以及根据数据保真度项和空间惩罚优化第一图像，其中空间惩罚性选择性地惩罚时间系数，并且输出第一图像的优化图像。

20. 发明申请

US20120148129A1 Prior Enhanced Compressed Sensing (PRINCE-CS) Reconstruction for Dynamic 2D-Radial Cardiac MRI 有权
标题翻译：先进的增强压缩感应（PRINCE-CS）重建动态二维径向心脏MRI
公开(公告)号：US20120148129A1
公开(公告)日：2012-06-14
申请号：US13280994
申请日：2011-10-25
申请人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Mûller , Michael S. Hansen
发明人： Ti-chiun Chang , Mariappan S. Nadar , Jens Gühring , Michael Zenge , Kai Tobias Block , Peter Speier , Edgar Mûller , Michael S. Hansen
IPC分类号： G06K9/00
CPC分类号： G01R33/4824 , G01R33/5608 , G01R33/56545
摘要： A reconstructed image is rendered from a set of MRI data by first estimating an image with an area which does not contain artifacts or has an artifact with a relative small magnitude. Corresponding data elements in the estimated image and a trial image are processed, for instance by multiplication, to generate an intermediate data set. The intermediate data set is transformed and minimized iteratively to generate a reconstructed image that is free or substantially free of artifacts. In one embodiment a Karhunen-Loeve Transform (KLT) is used. A sparsifying transformation may be applied to generate the reconstructed image. The sparsifying transformation may be also not be applied.
摘要翻译：通过首先用不包含伪像的区域估计图像或具有相对小的幅度的伪像，从一组MRI数据呈现重建的图像。例如通过乘法处理估计图像和试验图像中的相应数据元素以生成中间数据集。中间数据集被迭代地变换和最小化以产生自由或基本上没有伪像的重建图像。在一个实施例中，使用Karhunen-Loeve变换（KLT）。可以应用稀疏变换来生成重建图像。稀释变形也可能不适用。

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