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1. 发明申请

US20070047791A1 Method and MRT apparatus for evaluation of a cinematographic image series of the heart 失效
标题翻译：用于评估心脏摄影图像系列的方法和MRT装置
公开(公告)号：US20070047791A1
公开(公告)日：2007-03-01
申请号：US11504488
申请日：2006-08-15
申请人： Stefan Assmann , Renate Jerecic
发明人： Stefan Assmann , Renate Jerecic
IPC分类号： G06K9/00
CPC分类号： A61B5/055 , A61B6/503 , G06F19/00 , G06T7/0016 , G06T7/20 , G06T2207/30048 , G16H50/70 , Y10S128/922
摘要： In a method and magnetic resonance tomography apparatus for evaluation of a cinematographic image series of the heart during a heart cycle, wherein the image series is acquired with an acquisition unit, and in the image series healthy heart muscle tissue is presented as differentiable from damaged heart muscle tissue, at least two individual images of the image series are processed in a data processing unit, with at least one region of the healthy heart muscle and/or of the damaged heart muscle being detected in each of the individual images by a pattern recognition algorithm, and at least one descriptive quantity is measured that describes a geometric property of the region that has been detected by the pattern recognition algorithm, a dynamic change of the descriptive quantity is detected, and medically-relevant information that is acquired from the dynamic change of the descriptive quantity is made available as an output.
摘要翻译：在用于评估心脏周期中的心脏的电影图像系列的方法和磁共振断层摄影装置中，其中使用获取单元获取图像序列，并且在图像系列中健康心脏肌肉组织呈现为与受损心脏可微分肌肉组织，在数据处理单元中处理图像系列的至少两个单独图像，其中通过模式识别在每个单独图像中检测健康心脏肌肉和/或受损心肌的至少一个区域算法，并且测量描述由模式识别算法检测到的区域的几何属性的至少一个描述量，检测到描述量的动态变化，以及从动态变化获取的医学相关信息的描述数量作为输出。

2. 发明申请

US20100014735A1 Enhanced Contrast MR System Accommodating Vessel Dynamic Fluid Flow 有权
标题翻译：增强对比MR系统容纳动态流体流动
公开(公告)号：US20100014735A1
公开(公告)日：2010-01-21
申请号：US12436917
申请日：2009-05-07
申请人： Xiaoming Bi , Peter Schmitt , Renate Jerecic , Peter Weale , Sven Zuehlsdorff
发明人： Xiaoming Bi , Peter Schmitt , Renate Jerecic , Peter Weale , Sven Zuehlsdorff
IPC分类号： G06K9/00
CPC分类号： G01R33/5635 , G01R33/4835 , G01R33/5601 , G01R33/5607
摘要： A system enhances MR imaging contrast between vessels containing dynamically flowing blood and static tissue using an MR imaging system. The MR imaging system, in response to a heart rate synchronization signal, acquires an anatomical preparation data set representing a spatially non-localized preparation 3D volume in response to a first magnetization preparation pulse sequence. The MR imaging system acquires a spatially localized anatomical imaging data set representing a second imaging volume. The MR imaging system subtracts slice specific MR imaging data of the spatially localized anatomical imaging data set from spatially and temporally corresponding slice specific imaging data of the anatomical preparation data set to derive blood flow indicative imaging data. The temporally corresponding slice specific imaging data comprises data acquired at a substantially corresponding cycle point within a heart beat cycle determined in response to said heart rate synchronization signal. The MR imaging system iteratively repeats the subtraction step for multiple adjacent slices individually comprising a spatially localized anatomical imaging data set to provide a three-dimensional imaging data set.
摘要翻译：系统通过使用MR成像系统来增强含有动态流动的血液和静脉组织的血管之间的MR成像对比度。 MR成像系统响应于心率同步信号，响应于第一磁化准备脉冲序列获取表示空间非局部化准备3D体积的解剖准备数据集。 MR成像系统获取表示第二成像体积的空间局部解剖成像数据集。 MR成像系统从解剖准备数据集的空间和时间上对应的切片特异性成像数据中减去空间局部解剖成像数据集的切片特定MR成像数据，以导出血流指示成像数据。时间上对应的切片特定成像数据包括在响应于所述心率同步信号确定的心跳周期内的基本对应的周期点获取的数据。 MR成像系统迭代重复多个相邻切片的减法步骤，该相邻切片单独地包括空间定位的解剖学成像数据集以提供三维成像数据集。

3. 发明授权

US07742798B2 Method and MRT apparatus for evaluation of a cinematographic image series of the heart 失效
标题翻译：用于评估心脏摄影图像系列的方法和MRT装置
公开(公告)号：US07742798B2
公开(公告)日：2010-06-22
申请号：US11504488
申请日：2006-08-15
申请人： Stefan Assmann , Renate Jerecic
发明人： Stefan Assmann , Renate Jerecic
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , A61B6/503 , G06F19/00 , G06T7/0016 , G06T7/20 , G06T2207/30048 , G16H50/70 , Y10S128/922
摘要： In a method and magnetic resonance tomography apparatus for evaluation of a cinematographic image series of the heart during a heart cycle, wherein the image series is acquired with an acquisition unit, and in the image series healthy heart muscle tissue is presented as differentiable from damaged heart muscle tissue, at least two individual images of the image series are processed in a data processing unit, with at least one region of the healthy heart muscle and/or of the damaged heart muscle being detected in each of the individual images by a pattern recognition algorithm, and at least one descriptive quantity is measured that describes a geometric property of the region that has been detected by the pattern recognition algorithm, a dynamic change of the descriptive quantity is detected, and medically-relevant information that is acquired from the dynamic change of the descriptive quantity is made available as an output.
摘要翻译：在用于评估心脏周期中的心脏的电影图像系列的方法和磁共振断层摄影装置中，其中使用获取单元获取图像序列，并且在图像系列中健康心脏肌肉组织呈现为与受损心脏可微分肌肉组织，在数据处理单元中处理图像系列的至少两个单独图像，其中通过模式识别在每个单独图像中检测健康心脏肌肉和/或受损心肌的至少一个区域算法，并且测量描述由模式识别算法检测到的区域的几何属性的至少一个描述量，检测到描述量的动态变化，以及从动态变化获取的医学相关信息的描述数量作为输出。

4. 发明申请

US20100127702A1 SYSTEM FOR ADJUSTING A MAGNETIC FIELD FOR MR AND OTHER USE 有权
标题翻译：用于调整磁场和其他用途的系统
公开(公告)号：US20100127702A1
公开(公告)日：2010-05-27
申请号：US12577644
申请日：2009-10-12
申请人： Andreas Greiser , Renate Jerecic , Peter Kellman , Saurabh Shah , Peter Weale , Sven Zuehlsdorff
发明人： Andreas Greiser , Renate Jerecic , Peter Kellman , Saurabh Shah , Peter Weale , Sven Zuehlsdorff
IPC分类号： G01R33/48
CPC分类号： G01R33/3875 , G01R33/4828 , G01R33/543 , G01R33/56563 , G01R33/5673
摘要： An MR magnetic field inhomogeneity compensation system acquires multiple MR data sets representing luminance intensity values of individual image elements comprising corresponding multiple different image versions of at least a portion of a first imaging slice of patient anatomy including fat and water components. The compensation system employs the multiple MR data sets in solving corresponding multiple simultaneous nonlinear equations to calculate local frequency offset associated with magnetic field inhomogeneity at the individual image element location, for an individual image element of the image elements. The local frequency offset comprises a difference between proton spin frequency at the location and a nominal proton spin frequency. The compensation system derives data representing an electrical signal to be applied to magnetic field generation coils to substantially compensate for determined offset frequencies at the plurality of individual locations. A magnetic field generation coil generates a magnetic field in response to applying the electrical signal to substantially compensate for the magnetic field inhomogeneity at the individual image element location.
摘要翻译： MR磁场不均匀性补偿系统获取多个MR数据集，其表示包括脂肪和水分量的患者解剖结构的第一成像切片的至少一部分的相应多个不同图像形式的各个图像元素的亮度强度值。补偿系统采用多个MR数据集来解决相应的多个同时非线性方程，以计算与图像元素的单个图像元素相关联的与个体图像元素位置处的磁场不均匀性相关的局部频率偏移。本地频率偏移包括位置处的质子自旋频率与标称质子自旋频率之间的差异。补偿系统导出表示要施加到磁场产生线圈的电信号的数据，以基本上补偿多个单独位置处的确定的偏移频率。磁场产生线圈响应于施加电信号而产生磁场，以基本上补偿各个图像元件位置处的磁场不均匀性。

5. 发明授权

US08165371B2 Enhanced contrast MR system accommodating vessel dynamic fluid flow 有权
标题翻译：增强的对比MR系统适应血管动态流体流动
公开(公告)号：US08165371B2
公开(公告)日：2012-04-24
申请号：US12436917
申请日：2009-05-07
申请人： Xiaoming Bi , Peter Schmitt , Renate Jerecic , Peter Weale , Sven Zuehlsdorff
发明人： Xiaoming Bi , Peter Schmitt , Renate Jerecic , Peter Weale , Sven Zuehlsdorff
IPC分类号： G06K9/00
CPC分类号： G01R33/5635 , G01R33/4835 , G01R33/5601 , G01R33/5607
摘要： A system enhances MR imaging contrast between vessels containing dynamically flowing blood and static tissue using an MR imaging system. The MR imaging system, in response to a heart rate synchronization signal, acquires an anatomical preparation data set representing a spatially non-localized preparation 3D volume in response to a first magnetization preparation pulse sequence. The MR imaging system acquires a spatially localized anatomical imaging data set representing a second imaging volume. The MR imaging system subtracts slice specific MR imaging data of the spatially localized anatomical imaging data set from spatially and temporally corresponding slice specific imaging data of the anatomical preparation data set to derive blood flow indicative imaging data. The temporally corresponding slice specific imaging data comprises data acquired at a substantially corresponding cycle point within a heart beat cycle determined in response to said heart rate synchronization signal. The MR imaging system iteratively repeats the subtraction step for multiple adjacent slices individually comprising a spatially localized anatomical imaging data set to provide a three-dimensional imaging data set.
摘要翻译：系统通过使用MR成像系统来增强含有动态流动的血液和静脉组织的血管之间的MR成像对比度。 MR成像系统响应于心率同步信号，响应于第一磁化准备脉冲序列获取表示空间非局部化准备3D体积的解剖准备数据集。 MR成像系统获取表示第二成像体积的空间局部解剖成像数据集。 MR成像系统从解剖准备数据集的空间和时间上对应的切片特异性成像数据中减去空间局部解剖成像数据集的切片特定MR成像数据，以导出血流指示成像数据。时间上对应的切片特定成像数据包括在响应于所述心率同步信号确定的心跳周期内的基本对应的周期点获取的数据。 MR成像系统迭代重复多个相邻切片的减法步骤，该相邻切片单独地包括空间定位的解剖学成像数据集以提供三维成像数据集。

6. 发明授权

US08138759B2 System for adjusting a magnetic field for MR and other use 有权
标题翻译：用于MR调整磁场的系统及其他用途
公开(公告)号：US08138759B2
公开(公告)日：2012-03-20
申请号：US12577644
申请日：2009-10-12
申请人： Andreas Greiser , Renate Jerecic , Peter Kellman , Saurabh Shah , Peter Weale , Sven Zuehlsdorff
发明人： Andreas Greiser , Renate Jerecic , Peter Kellman , Saurabh Shah , Peter Weale , Sven Zuehlsdorff
IPC分类号： G01V3/00
CPC分类号： G01R33/3875 , G01R33/4828 , G01R33/543 , G01R33/56563 , G01R33/5673
摘要： An MR magnetic field inhomogeneity compensation system acquires multiple MR data sets representing luminance intensity values of individual image elements comprising corresponding multiple different image versions of at least a portion of a first imaging slice of patient anatomy including fat and water components. The compensation system employs the multiple MR data sets in solving corresponding multiple simultaneous nonlinear equations to calculate local frequency offset associated with magnetic field inhomogeneity at the individual image element location, for an individual image element of the image elements. The local frequency offset comprises a difference between proton spin frequency at the location and a nominal proton spin frequency. The compensation system derives data representing an electrical signal to be applied to magnetic field generation coils to substantially compensate for determined offset frequencies at the plurality of individual locations. A magnetic field generation coil generates a magnetic field in response to applying the electrical signal to substantially compensate for the magnetic field inhomogeneity at the individual image element location.
摘要翻译： MR磁场不均匀性补偿系统获取多个MR数据集，其表示包括脂肪和水分量的患者解剖结构的第一成像切片的至少一部分的相应多个不同图像形式的各个图像元素的亮度强度值。补偿系统采用多个MR数据集来解决相应的多个同时非线性方程，以计算与图像元素的单个图像元素相关联的与个体图像元素位置处的磁场不均匀性相关的局部频率偏移。本地频率偏移包括位置处的质子自旋频率与标称质子自旋频率之间的差异。补偿系统导出表示要施加到磁场产生线圈的电信号的数据，以基本上补偿多个单独位置处的确定的偏移频率。磁场产生线圈响应于施加电信号而产生磁场，以基本上补偿各个图像元件位置处的磁场不均匀性。

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