公开(公告)号：US09297872B2

公开(公告)日：2016-03-29

申请号：US14088386

申请日：2013-11-23

申请人： Stephan Biber ,  Stephan Kannengieβer

发明人： Stephan Biber ,  Stephan Kannengieβer

IPC分类号： G06K9/00 ,  G01R33/56 ,  G01R33/3415 ,  G01R33/561

CPC分类号： G01R33/5608 ,  G01R33/3415 ,  G01R33/5611

摘要： An apparatus and a method for generating an image from N reception signal data sets of signals received by a plurality of coils of a magnetic resonance tomography appliance from a region of a body to be examined using an image processing computer are provided. The apparatus includes a degree-of-compression determining device. A ratio N/M of the number N of N reception signal data sets generated from the signals received by the plurality of coils to a smaller number M of mode data sets is defined taking account of a plurality of parameters. The plurality of parameters at least also represent system resources of the image processing computer. Using a compression computer, the N reception signal data sets are compressed into M mode data sets. After this, the M mode data sets are used by the image processing computer for generating the image of the region of the body.

摘要翻译： 提供了一种用于从使用图像处理计算机的被检体的区域从磁共振断层摄影装置的多个线圈接收的N个接收信号数据组生成图像的装置和方法。 该装置包括压缩度确定装置。 通过考虑多个参数来定义从多个线圈接收到的信号产生的N个接收信号数据集合的数目N的比N / M到模式数据集的较小数量M. 多个参数至少也表示图像处理计算机的系统资源。 使用压缩计算机，N个接收信号数据集被压缩成M个模式数据集。 之后，M模式数据集由图像处理计算机用于生成身体区域的图像。

公开(公告)号：US08143891B2

公开(公告)日：2012-03-27

申请号：US12504789

申请日：2009-07-17

申请人： Agus Priatna ,  Stephan Kannengieβer

发明人： Agus Priatna ,  Stephan Kannengieβer

IPC分类号： G01V3/00

CPC分类号： G01R33/561 ,  G01R33/5613 ,  G01R33/56509

摘要： A system uses a three-dimensional spoiled gradient recalled echo sequence for fat suppression with reduced total acquisition time suitable for acquiring image data under breath-hold conditions using a reversed asymmetry during data acquisition on an opposed phase echo. A system reduces RF pulse repetition time in an MR imaging pulse sequence in an MR imaging device. The system includes an RF pulse generator for generating an RF excitation pulse sequence having a pulse repetition interval. A read-out gradient magnetic field generator generates an asymmetric read-out gradient magnetic field having a readout gradient mid-point occurring prior to an RF echo pulse peak. The RF echo pulse peak is received in response to a generated RF excitation pulse.

摘要翻译： 系统使用三维损坏梯度回归序列进行脂肪抑制，减少总采集时间，适用于在相对相位回波数据采集期间使用逆向不对称，在呼吸保持条件下获取图像数据。 一种系统降低MR成像装置中的MR成像脉冲序列中的RF脉冲重复时间。 该系统包括用于产生具有脉冲重复间隔的RF激励脉冲序列的RF脉冲发生器。 读出梯度磁场发生器产生具有在RF回波脉冲峰值之前出现的读出梯度中点的非对称读出梯度磁场。 响应于产生的RF激励脉冲接收RF回波脉冲峰值。

公开(公告)号：US07319324B2

公开(公告)日：2008-01-15

申请号：US10988127

申请日：2004-11-12

申请人： Stephan Kannengieβer ,  Berthold Kiefer ,  Mathias Nittka

发明人： Stephan Kannengieβer ,  Berthold Kiefer ,  Mathias Nittka

IPC分类号： G01V3/00

CPC分类号： G01R33/5611 ,  G01R33/56509

摘要： In a method and apparatus for magnetic resonance imaging based on a partially parallel acquisition (PPA) reconstruction technique, a number of partial k-space data sets are acquired with a number of component coils, the totality of the partial data sets forming a complete k-space data set, the respective coil sensitivity of each component coil is determined based on at least one part of the complete k-space data set, any partial k-space data set is transformed via a PPA reconstruction technique dependent on the determined coil sensitivities, and the transformed partial data sets are superimposed to obtain a low-artifact image data set.

摘要翻译： 在基于部分并行采集（PPA）重建技术的用于磁共振成像的方法和装置中，使用多个分量线圈获取多个部分k空间数据集，部分数据集的总数形成完整的k - 空间数据集，基于完整的k空间数据集的至少一部分来确定每个分量线圈的相应线圈灵敏度，任何部分k空间数据集通过取决于确定的线圈灵敏度的PPA重建技术被变换 ，并且经变换的部分数据集被叠加以获得低伪像图像数据集。