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公开(公告)号：US11154213B2
公开(公告)日：2021-10-26
申请号：US15947360
申请日：2018-04-06
IPC分类号： A61B5/055 , A61B5/00 , A61B5/024 , G01R33/563 , G01R33/567 , G06T7/20 , G01R33/565 , G01R33/48 , G01R33/56 , A61B5/11 , A61B5/113
摘要： A method and system are provided for detecting a position of a periodically moving organ in a MRI examination. MR images of an examining person including a periodically moving organ are provided over a plurality of periodic cycles of the periodically moving organ. Based on the provided MR images, a pixel frequency is associated with each pixel of the MR images. Using the associated pixel frequencies and the positions of the pixels within the MR images, the position and the frequency of the periodically moving organ are determined.
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2.发明申请公开(公告)号：US20180289281A1
公开(公告)日：2018-10-11
申请号：US15947360
申请日：2018-04-06
IPC分类号： A61B5/055 , G01R33/567 , G06T7/20
摘要： A method and system are provided for detecting a position of a periodically moving organ in a MRI examination. MR images of an examining person including a periodically moving organ are provided over a plurality of periodic cycles of the periodically moving organ. Based on the provided MR images, a pixel frequency is associated with each pixel of the MR images. Using the associated pixel frequencies and the positions of the pixels within the MR images, the position and the frequency of the periodically moving organ are determined.
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公开(公告)号：US11147455B2
公开(公告)日：2021-10-19
申请号：US15944635
申请日：2018-04-03
申请人： Jérôme Chaptinel , Tobias Kober , Davide Piccini , Peter Speier , Matthias Stuber , Jérôme Yerly
发明人： Jérôme Chaptinel , Tobias Kober , Davide Piccini , Peter Speier , Matthias Stuber , Jérôme Yerly
摘要： The disclosure relates to a method for the interactive acquisition of data from an object under investigation by a magnetic resonance system. The data is acquired from the object under investigation with the magnetic resonance system and images are automatically reconstructed and displayed in real time based on the data. A time interval is determined during which a predetermined condition is met in the images. Quality images are automatically reconstructed based on the data acquired within the time interval. The temporal resolution during reconstruction of the quality images is higher than the temporal resolution during reconstruction of the images.
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公开(公告)号：US20180289262A1
公开(公告)日：2018-10-11
申请号：US15944635
申请日：2018-04-03
申请人： Jérôme Chaptinel , Tobias Kober , Davide Piccini , Peter Speier , Matthias Stuber , Jérôme Yerly
发明人： Jérôme Chaptinel , Tobias Kober , Davide Piccini , Peter Speier , Matthias Stuber , Jérôme Yerly
摘要： The disclosure relates to a method for the interactive acquisition of data from an object under investigation by a magnetic resonance system. The data is acquired from the object under investigation with the magnetic resonance system and images are automatically reconstructed and displayed in real time based on the data. A time interval is determined during which a predetermined condition is met in the images. Quality images are automatically reconstructed based on the data acquired within the time interval. The temporal resolution during reconstruction of the quality images is higher than the temporal resolution during reconstruction of the images.
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5.发明授权Cardiac chamber volume computation from contours and base plane in cardiac MR Cine images 有权心脏MR电影图像中的轮廓和基面的心室容量计算公开(公告)号：US08712133B2
公开(公告)日：2014-04-29
申请号：US13246002
申请日：2011-09-27
申请人： Jens Gühring , Marie-Pierre Jolly , Christoph Guetter , Xiaoguang Lu , Carmel Hayes , Peter Speier , Davide Piccini
发明人： Jens Gühring , Marie-Pierre Jolly , Christoph Guetter , Xiaoguang Lu , Carmel Hayes , Peter Speier , Davide Piccini
IPC分类号： G06K9/00
CPC分类号： G06T7/602 , G06T7/0012 , G06T7/62 , G06T2200/04 , G06T2207/10076 , G06T2207/30048
摘要： A system receives cardiac cine MR images consists of multiple slices of the heart over time. A series of short axis images slices are received. Long axis images are also received by the system, wherein a base plane defined by landmark points is detected. An intersection of the base plane with a contour of a heart chamber is determined for a plurality of slices in the short axis image. A volume for each of the contour slices covering the heart chamber, including for contours that are limited by base plane intersections, is evaluated. All slice volumes are summed to determine a total volume of the chamber. In one embodiment the chamber is a left ventricle and the landmark is a mitral valve. An ejection factor is determined.
摘要翻译： 一个系统接收心脏电影MR图像由心脏的多个切片随时间组成。 接收一系列短轴图像切片。 长轴图像也被系统接收，其中检测由地标点定义的基本平面。 针对短轴图像中的多个切片确定基面与心室的轮廓的交点。 评估覆盖心室的每个轮廓切片的体积，包括对于由基面交点进行限制的轮廓。 将所有切片体积相加以确定腔室的总体积。 在一个实施例中，腔室是左心室，并且地标是二尖瓣。 确定射血因子。
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6.发明授权Method and device for uniform radial data acquisition in three-dimensional K-space in an MR measurement for a magnetic resonance system 有权用于磁共振系统的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。
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7.发明申请Cardiac Chamber Volume Computation from Contours and Base Plane in Cardiac MR Cine Images 有权心脏MR电影图像中的轮廓和基础平面的心室容量计算公开(公告)号：US20130259337A1
公开(公告)日：2013-10-03
申请号：US13246002
申请日：2011-09-27
申请人： Jens Gühring , Marie-Pierre Jolly , Christoph Guetter , Xiaoguang Lu , Carmel Hayes , Peter Speier , Davide Piccini
发明人： Jens Gühring , Marie-Pierre Jolly , Christoph Guetter , Xiaoguang Lu , Carmel Hayes , Peter Speier , Davide Piccini
CPC分类号： G06T7/602 , G06T7/0012 , G06T7/62 , G06T2200/04 , G06T2207/10076 , G06T2207/30048
摘要： A system receives cardiac cine MR images consists of multiple slices of the heart over time. A series of short axis images slices are received. Long axis images are also received by the system, wherein a base plane defined by landmark points is detected. An intersection of the base plane with a contour of a heart chamber is determined for a plurality of slices in the short axis image. A volume for each of the contour slices covering the heart chamber, including for contours that are limited by base plane intersections, is evaluated. All slice volumes are summed to determine a total volume of the chamber. In one embodiment the chamber is a left ventricle and the landmark is a mitral valve. An ejection factor is determined.
摘要翻译： 一个系统接收心脏电影MR图像由心脏的多个切片随时间组成。 接收一系列短轴图像切片。 长轴图像也由系统接收，其中检测由地标点定义的基本平面。 针对短轴图像中的多个切片确定基面与心室的轮廓的交点。 评估覆盖心室的每个轮廓切片的体积，包括对于由基面交点进行限制的轮廓。 将所有切片体积相加以确定腔室的总体积。 在一个实施例中，腔室是左心室，并且地标是二尖瓣。 确定射血因子。
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8.发明申请METHOD AND MAGNETIC RESONANCE SYSTEM FOR COMBINING SIGNALS ACQUIRED FROM DIFFERENT ACQUISITION COILS 有权用于组合从不同收购线圈获得的信号的方法和磁共振系统公开(公告)号：US20120112751A1
公开(公告)日：2012-05-10
申请号：US13289309
申请日：2011-11-04
申请人： Arne Littmann , Davide Piccini , Michael Zenge
发明人： Arne Littmann , Davide Piccini , Michael Zenge
IPC分类号： G01R33/44
CPC分类号： G01R33/4838 , A61B5/055 , G01R33/5608 , G01R33/5611 , G01R33/56545
摘要： In a method and magnetic resonance (MR) apparatus for combining MR signals that were acquired with different acquisition coils from a region of an examination subject at least two MR signals that are based on MR signals acquired with at least two different acquisition coils are provided to a processor. Due to the spatially differing arrangement of the respective acquisition coils, the at least two MR signals image the region of the examination subject with different sensitivity profiles. The provided MR signals are combined, such that unwanted MR signal portions are suppressed, to form a combined MR signal with the suppression of unwanted MR signal portions being implemented by MR signal portions that were acquired with an acquisition coil that detects the unwanted MR signal portions with increased sensitivity in comparison to other acquisition coils being weighted less in the combined MR signal than other MR signal portions.
摘要翻译： 在用于组合从检查对象的区域中获取的不同采集线圈的MR信号的方法和磁共振（MR）装置中，至少两个MR信号基于用至少两个不同采集线圈获取的MR信号被提供给 一个处理器 由于各个采集线圈的空间上不同的布置，所述至少两个MR信号以不同的灵敏度分布图像检查对象的区域。 所提供的MR信号被组合，使得不需要的MR信号部分被抑制以形成组合的MR信号，其中抑制不期望的MR信号部分由MR信号部分实现，MR信号部分是用检测不需要的MR信号部分的采集线圈 与其他采集线圈相比，在组合MR信号中比其他MR信号部分加权较小的灵敏度增加。
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9.发明授权Method and magnetic resonance system for combining signals acquired from different acquisition coils 有权用于组合从不同采集线圈获取的信号的方法和磁共振系统公开(公告)号：US08749233B2
公开(公告)日：2014-06-10
申请号：US13289309
申请日：2011-11-04
申请人： Arne Littmann , Davide Piccini , Michael Zenge
发明人： Arne Littmann , Davide Piccini , Michael Zenge
IPC分类号： G01V3/00
CPC分类号： G01R33/4838 , A61B5/055 , G01R33/5608 , G01R33/5611 , G01R33/56545
摘要： In a method and magnetic resonance (MR) apparatus for combining MR signals that were acquired with different acquisition coils from a region of an examination subject at least two MR signals that are based on MR signals acquired with at least two different acquisition coils are provided to a processor. Due to the spatially differing arrangement of the respective acquisition coils, the at least two MR signals image the region of the examination subject with different sensitivity profiles. The provided MR signals are combined, such that unwanted MR signal portions are suppressed, to form a combined MR signal with the suppression of unwanted MR signal portions being implemented by MR signal portions that were acquired with an acquisition coil that detects the unwanted MR signal portions with increased sensitivity in comparison to other acquisition coils being weighted less in the combined MR signal than other MR signal portions.
摘要翻译： 在用于组合从检查对象的区域中获取的不同采集线圈的MR信号的方法和磁共振（MR）装置中，至少两个MR信号基于用至少两个不同采集线圈获取的MR信号被提供给 一个处理器 由于各个采集线圈的空间上不同的布置，所述至少两个MR信号以不同的灵敏度分布图像检查对象的区域。 所提供的MR信号被组合，使得不需要的MR信号部分被抑制以形成组合的MR信号，其中抑制不期望的MR信号部分由MR信号部分实现，MR信号部分是用检测不需要的MR信号部分的采集线圈 与其他采集线圈相比，在组合MR信号中比其他MR信号部分加权较小的灵敏度增加。
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10.发明申请METHOD AND DEVICE FOR RADIAL DATA ACQUISITION IN THREE-DIMENSIONAL K-SPACE IN AN MR MEASUREMENT FOR A MAGNETIC RESONANCE SYSTEM 有权用于磁共振系统的MR测量中的三维K空间中的径向数据采集的方法和装置公开(公告)号：US20110095762A1
公开(公告)日：2011-04-28
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： G01R33/54
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。
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