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公开(公告)号：US20160161584A1
公开(公告)日：2016-06-09
申请号：US14963666
申请日：2015-12-09
CPC分类号： G01R33/5607 , A61B5/055 , A61B5/4872 , G01R33/4828 , G01R33/5608 , G01R33/56563 , G06F19/321
摘要： In a method and apparatus for the reconstruction of magnetic resonance image data, magnetic resonance measurement data are acquired from an object under examination by a Dixon recording technique. A model is provided to a computer, the model including modeling data matched to the object under examination from which the magnetic resonance measurement data were acquired. At least one tissue image is reconstructed in the computer from the magnetic resonance measurement data using the model matched to the object under examination, wherein the at least one tissue image includes at least one fat image and/or at least one water image.
摘要翻译： 在用于重建磁共振图像数据的方法和装置中，通过Dixon记录技术从检查对象获取磁共振测量数据。 将模型提供给计算机，该模型包括与获取的磁共振测量数据的检查对象匹配的建模数据。 使用与被检查物体匹配的模型，使用与检测对象相匹配的模型，从计算机中重建至少一个组织图像，其中至少一个组织图像包括至少一个脂肪图像和/或至少一个水图像。
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公开(公告)号：US10120047B2
公开(公告)日：2018-11-06
申请号：US14832120
申请日：2015-08-21
IPC分类号： G01V3/00 , G01R33/3875 , G01R33/36 , G01R33/54 , G01R33/483 , G01R33/565 , G01R33/58
摘要： In a method and magnetic resonance apparatus for performing at least one adjusting measurement for the magnetic resonance apparatus, a localizing measurement is performed using the magnetic resonance apparatus and a localization dataset is created, and at least one examination region on the localization dataset. At least one examination region of the localization dataset is selected, and at least one adjusting measurement is performed according to the at least one selected examination region. The at least one adjusting measurement can be the calculation of a radio-frequency pulse amplitude, the calculation of a system frequency and the calculation of at least one current of at least one shim coil.
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公开(公告)号：US09940540B2
公开(公告)日：2018-04-10
申请号：US14970846
申请日：2015-12-16
CPC分类号： G06K9/52 , A61B5/055 , G01R33/246 , G01R33/5608
摘要： In a method and apparatus for correcting image data acquired by an image data acquisition scanner of a magnetic resonance system, a reception profile of a reception antenna of the magnetic resonance scanner is determined. A correction function is determined by which an asymmetry of the reception profile with respect to a symmetry plane is corrected. Furthermore, image data are received and corrected by multiplying the intensity values of the image data with the determined correction function.
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4.发明申请IMAGE CORRECTION DURING MAGNETIC RESONANCE DEPENDENT ON THE RECEPTION PROFILE OF THE RECEPTION ANTENNA 有权根据接收天线的接收特性，在磁共振期间的图像校正公开(公告)号：US20160171670A1
公开(公告)日：2016-06-16
申请号：US14970846
申请日：2015-12-16
CPC分类号： G06K9/52 , A61B5/055 , G01R33/246 , G01R33/5608
摘要： In a method and apparatus for correcting image data acquired by an image data acquisition scanner of a magnetic resonance system, a reception profile of a reception antenna of the magnetic resonance scanner is determined. A correction function is determined by which an asymmetry of the reception profile with respect to a symmetry plane is corrected. Furthermore, image data are received and corrected by multiplying the intensity values of the image data with the determined correction function.
摘要翻译： 在用于校正由磁共振系统的图像数据采集扫描仪获取的图像数据的方法和装置中，确定磁共振扫描器的接收天线的接收曲线。 确定接收轮廓相对于对称平面的不对称性的校正功能被校正。 此外，通过将图像数据的强度值与确定的校正函数相乘来接收和校正图像数据。
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5.发明申请METHOD AND MAGNETIC RESONANCE APPARATUS FOR CORRECTION OF A B0 MAP FOR CHEMICAL SHIFTS 有权用于校正B0 MAP化学发光的方法和磁共振装置公开(公告)号：US20150204955A1
公开(公告)日：2015-07-23
申请号：US14603629
申请日：2015-01-23
IPC分类号： G01R33/44 , G06T7/00 , G01R33/565 , G01R33/56 , G01R33/48
CPC分类号： G06T7/162 , G01R33/243 , G01R33/4828 , G01R33/5608 , G01R33/5615 , G01R33/56527 , G01R33/56563
摘要： In a method for correction of a B0 field map measured with a magnetic resonance device, that describes deviations from a nominal field strength in the homogeneity area of the magnetic resonance device by deviations from a nominal frequency for protons bonded to water, the deviations being represented as Larmor frequency values for different picture elements shifted by chemical shifts, the B0 field map is recorded with spins of the fat and water protons not in phase. The B0 field map is segmented by evaluating the differences of the Larmor frequency values of adjacent picture elements of the B0 field map in at least two contiguous clusters. For each cluster, a decision is made on the basis of a smoothness criterion and a compactness criterion as to whether a cluster containing a majority of protons bonded into fat is involved. Clusters identified as containing a majority of protons bonded into fat are corrected by lowering the Larmor frequency values by the difference between the nominal frequency for protons bonded into water and the corresponding nominal frequency for protons bonded to fat.
摘要翻译： 在用磁共振装置测量的B0场映射的校正方法中，通过与键合到水的质子的标称频率的偏差来描述磁共振装置的均匀区域中的标称磁场强度的偏差，这些偏差被表示 作为通过化学位移移位的不同图像元素的拉莫尔频率值，B0场图以不同相位的脂肪和水质子的自旋记录。 通过评估至少两个连续簇中的B0场映射的相邻像素的Larmor频率值的差异来分割B0场映射。 对于每个簇，基于平滑度标准和紧密标准来确定是否涉及包含大部分键合在脂肪中的质子的簇。 被认为含有大部分键合到脂肪中的质子的簇通过降低Larmor频率值，通过键合到水中的质子的标称频率和与脂肪键合的质子的相应名义频率之间的差来校正。
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6.发明授权公开(公告)号：US09846208B2
公开(公告)日：2017-12-19
申请号：US14607240
申请日：2015-01-28
发明人： Franz Hebrank , Wilhelm Horger , Michael Koehler
IPC分类号： G01V3/00 , G01R33/36 , G01R33/387 , G01R33/44 , G01R33/565 , G01R33/561 , G01R33/563
CPC分类号： G01R33/3635 , G01R33/36 , G01R33/3607 , G01R33/387 , G01R33/44 , G01R33/5616 , G01R33/56341 , G01R33/5659
摘要： In a method and apparatus for acquiring a magnetic resonance image data set of a scan area of an examination subject, the image data are acquired with a magnetic resonance apparatus having a transmitter coil that emits a radio-frequency signal having at least two transmission channels so that different polarizations of the radio-frequency signal are produced, and a magnetic resonance sequence is used to acquire raw data for the magnetic resonance image data set, wherein raw data are acquired during at least two scanning operations with the magnetic resonance sequence, with different polarizations of the radio-frequency signals being used for at least two of the at least two scanning operations, following which the magnetic resonance image data set is determined by averaging the raw data.
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公开(公告)号：US09830711B2
公开(公告)日：2017-11-28
申请号：US14603629
申请日：2015-01-23
IPC分类号： G01R33/24 , G06T7/00 , G01R33/48 , G01R33/56 , G01R33/565 , G01R33/561
CPC分类号： G06T7/162 , G01R33/243 , G01R33/4828 , G01R33/5608 , G01R33/5615 , G01R33/56527 , G01R33/56563
摘要： In a method for correction of a B0 field map measured with a magnetic resonance device, that describes deviations from a nominal field strength in the homogeneity area of the magnetic resonance device by deviations from a nominal frequency for protons bonded to water, the deviations being represented as Larmor frequency values for different picture elements shifted by chemical shifts, the B0 field map is recorded with spins of the fat and water protons not in phase. The B0 field map is segmented by evaluating the differences of the Larmor frequency values of adjacent picture elements of the B0 field map in at least two contiguous clusters. For each cluster, a decision is made on the basis of a smoothness criterion and a compactness criterion as to whether a cluster containing a majority of protons bonded into fat is involved. Clusters identified as containing a majority of protons bonded into fat are corrected by lowering the Larmor frequency values by the difference between the nominal frequency for protons bonded into water and the corresponding nominal frequency for protons bonded to fat.
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8.发明申请METHOD AND MAGNETIC RESONANCE APPARATUS FOR PERFORMING AN ADJUSTING MEASUREMENT 审中-公开用于执行调节测量的方法和磁共振装置公开(公告)号：US20160054408A1
公开(公告)日：2016-02-25
申请号：US14832120
申请日：2015-08-21
IPC分类号： G01R33/3875 , G01R33/36 , G01R33/54
CPC分类号： G01R33/3875 , G01R33/36 , G01R33/483 , G01R33/543 , G01R33/5659 , G01R33/583
摘要： In a method and magnetic resonance apparatus for performing at least one adjusting measurement for the magnetic resonance apparatus, a localizing measurement is performed using the magnetic resonance apparatus and a localization dataset is created, and at least one examination region on the localization dataset. At least one examination region of the localization dataset is selected, and at least one adjusting measurement is performed according to the at least one selected examination region. The at least one adjusting measurement can be the calculation of a radio-frequency pulse amplitude, the calculation of a system frequency and the calculation of at least one current of at least one shim coil.
摘要翻译： 在用于对磁共振装置执行至少一个调整测量的方法和磁共振装置中，使用磁共振装置执行定位测量，并且创建定位数据集，以及定位数据集上的至少一个检查区域。 选择定位数据集的至少一个检查区域，并且根据至少一个所选择的检查区域执行至少一个调整测量。 所述至少一个调整测量可以是射频脉冲幅度的计算，系统频率的计算和至少一个垫片线圈的至少一个电流的计算。
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