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21. 发明授权

US08712133B2 Cardiac chamber volume computation from contours and base plane in cardiac MR Cine images 有权
标题翻译：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。

22. 发明申请

US20120249144A1 METHOD AND DEVICE TO GENERATE SPATIALLY RESOLVED QUASI-T2-WEIGHTED MAGNETIC RESONANCE SIGNALS 有权
标题翻译：生成空间分辨率的T2加权磁共振信号的方法和装置
公开(公告)号：US20120249144A1
公开(公告)日：2012-10-04
申请号：US13435218
申请日：2012-03-30
申请人： Wolfgang G. Rehwald , Peter Speier
发明人： Wolfgang G. Rehwald , Peter Speier
IPC分类号： G01R33/54 , G01R33/38
CPC分类号： G01R33/5614 , G01R33/563
摘要： In a magnetic resonance method and device to generate spatially resolved, quasi-T2-weighted magnetic resonance signals from an examination region, an initial magnetization is flipped in a first direction with a first gradient-balanced SSFP sequence. Spatially coded first magnetic resonance signals from the first gradient-balanced SSFP sequence are detected during the transient portion of the first SSFP sequence. An initial magnetization is flipped in a direction opposite the first direction with a second gradient-balanced SSFP sequence. Spatially coded second magnetic resonance signals from the second gradient-balanced SSFP sequence during the transient portion of the second gradient-balanced SSFP sequence. The first and second magnetic resonance signals are constructively superimposed into overlay signals. Image data with a predominant T2 weighting are reconstructed from the overlay signals, or are used for spatially resolved estimation of the T2 relaxation time constant.
摘要翻译：在用于从检查区域产生空间解析的准T2加权磁共振信号的磁共振方法和装置中，利用第一梯度平衡SSFP序列在第一方向上翻转初始磁化。在第一SSFP序列的瞬态部分期间检测来自第一梯度平衡SSFP序列的空间编码的第一磁共振信号。初始磁化在与第一方向相反的方向上以第二梯度平衡的SSFP序列翻转。在第二梯度平衡SSFP序列的瞬态部分期间来自第二梯度平衡SSFP序列的空间编码的第二磁共振信号。第一和第二磁共振信号被构造地叠加到覆盖信号中。从叠加信号重建具有主要T2加权的图像数据，或者用于T2弛豫时间常数的空间分辨估计。

23. 发明授权

US08269495B2 Method and device to determine an inversion time value of tissue by means of magnetic resonance technology 有权
标题翻译：通过磁共振技术确定组织反转时间值的方法和装置
公开(公告)号：US08269495B2
公开(公告)日：2012-09-18
申请号：US12571540
申请日：2009-10-01
申请人： Arne Littmann , Peter Speier , Katrin Christel Sprung
发明人： Arne Littmann , Peter Speier , Katrin Christel Sprung
IPC分类号： G01V3/00
CPC分类号： A61B5/055 , A61B5/7285 , G01R33/281 , G01R33/56 , G01R33/5601 , G01R33/5602 , G01R33/5608 , G01R33/563 , G01R33/56325 , G01R33/56366
摘要： In a method to determine an inversion time value for contrast improvement between different tissue in a contrast agent-supported magnetic resonance imaging, a series of magnetic resonance images of an imaging area is acquired using an inversion recovery sequence with different inversion times. A structure in the magnetic resonance images is segmented and a time response of the signal intensity of image elements corresponding to one another in the magnetic resonance images of the segmented structure is automatically determined. Minima of the signal intensity in the segmented structure are determined automatically and associated with the associated inversion time values. The optimal inversion time value for contrast improvement is automatically determined from the inversion time values that have been associated with the minima of the signal intensity in the segmented structure.
摘要翻译：在用于确定造影剂支持的磁共振成像中不同组织之间的对比度改善的反转时间值的方法中，使用具有不同反转时间的反转恢复序列来获取成像区域的一系列磁共振图像。分割磁共振图像中的结构，并且自动确定在分段结构的磁共振图像中彼此对应的图像元素的信号强度的时间响应。自动确定分段结构中的信号强度的最小值，并与相关的反转时间值相关联。根据与分段结构中的信号强度的最小值相关联的反转时间值自动确定对比度改善的最佳反演时间值。

24. 发明申请

US20120121152A1 Method and System for Automatic View Planning for Cardiac Magnetic Resonance Imaging acquisition 有权
标题翻译：心脏磁共振成像采集自动查看计划方法与系统
公开(公告)号：US20120121152A1
公开(公告)日：2012-05-17
申请号：US13293239
申请日：2011-11-10
申请人： Xiaoguang Lu , Jens Guehring , Marie-Pierre Jolly , Bogdan Georgescu , Carmel Hayes , Peter Speier , Michaela Schmidt , Xiaoming Bi , Randall Kroeker , Dorin Comaniciu , Edgar Mueller
发明人： Xiaoguang Lu , Jens Guehring , Marie-Pierre Jolly , Bogdan Georgescu , Carmel Hayes , Peter Speier , Michaela Schmidt , Xiaoming Bi , Randall Kroeker , Dorin Comaniciu , Edgar Mueller
IPC分类号： G06K9/34
CPC分类号： G06K9/6857 , G06K9/6282
摘要： A method and system for automated view planning for cardiac magnetic resonance imaging (MRI) acquisition is disclosed. The method and system automatically generate a full scan prescription using a single 3D MRI volume. The left ventricle (LV) is segmented in the 3D MRI volume. Cardiac landmarks are detected in the automatically prescribed slices. A full scan prescription, including a short axis stack and 2-chamber, 3-chamber, and 4-chamber views, is automatically generated based on cardiac anchors provided by the segmented left ventricle and the detected cardiac landmarks in the 3D MRI volume.
摘要翻译：公开了用于心脏磁共振成像（MRI）采集的自动视图规划的方法和系统。该方法和系统使用单个3D MRI体积自动生成全扫描处方。左心室（LV）在3D MRI体积中分段。在自动规定的切片中检测到心脏地标。基于由分割的左心室提供的心脏锚定点和3D MRI体积中检测到的心脏地标，自动生成全扫描处方，包括短轴堆叠和2室，3室和4室视图。

25. 发明授权

US08094909B2 Apparatus and method for remotely controlling in real time measurement parameters of a magnetic resonance (MR) scanner 有权
标题翻译：用于远程控制磁共振（MR）扫描仪的实时测量参数的装置和方法
公开(公告)号：US08094909B2
公开(公告)日：2012-01-10
申请号：US12207605
申请日：2008-09-10
申请人： Corinna Maier , Klaus J. Kirchberg , Peter Speier , Christine H. Lorenz
发明人： Corinna Maier , Klaus J. Kirchberg , Peter Speier , Christine H. Lorenz
IPC分类号： G06K9/00 , G01V3/00
CPC分类号： G01R33/54 , G01R33/543 , G01R33/546
摘要： Apparatus for remotely controlling parameters of an image scanning apparatus includes a software interface for translating commands from an external application for providing scanner control commands to a scanner control machine for control of the parameters; and the software interface includes syntax software for translating the commands from the external application into a given syntax for providing the scanner control commands.
摘要翻译：用于远程控制图像扫描装置参数的装置包括用于从外部应用程序转换命令的软件接口，用于向扫描仪控制机器提供扫描仪控制命令以控制参数; 并且软件接口包括用于将来自外部应用的命令翻译成用于提供扫描器控制命令的给定语法的语法软件。

26. 发明授权

US07853060B2 Method and MR system for generating MR images 有权
标题翻译：用于生成MR图像的方法和MR系统
公开(公告)号：US07853060B2
公开(公告)日：2010-12-14
申请号：US11734906
申请日：2007-04-13
申请人： Peter Schmitt , Michael Wendt , Dieter Kleinschmidt , Peter Speier
发明人： Peter Schmitt , Michael Wendt , Dieter Kleinschmidt , Peter Speier
IPC分类号： G06K9/00
CPC分类号： G01R33/56308 , G01R33/4818 , G01R33/4822 , G01R33/4824 , G01R33/5608 , G01R33/561 , G01R33/5619
摘要： In a method and apparatus for generation of magnetic resonance images, a number of three-dimensional volume data sets of a subject are acquired in k-space, with each three-dimensional volume data set being acquired with a non-constant density. Filtered three-dimensional volume data sets are generated in k-space, which are assembled from a number of the three-dimensional volume data sets. Three-dimensional image data sets are reconstructed on the basis of filtered three-dimensional volume data sets.
摘要翻译：在用于产生磁共振图像的方法和装置中，以k空间获取对象的多个三维体数据集，其中每个三维体数据集以非恒定的密度获取。在k空间中生成滤过的三维体数据集，其由多个三维体数据集组装。在过滤的三维体数据集的基础上重构三维图像数据集。

27. 发明申请

US20100277173A1 METHOD AND MAGNETIC RESONANCE TOMOGRAPHY APPARATUS FOR TRIGGERED ACQUISITION OF MAGNETIC RESONANCE DATA 有权
标题翻译：用于触发磁共振数据的方法和磁共振测量装置
公开(公告)号：US20100277173A1
公开(公告)日：2010-11-04
申请号：US12770887
申请日：2010-04-30
申请人： Wilfried Landschuetz , Michaela Schmidt , Peter Speier
发明人： Wilfried Landschuetz , Michaela Schmidt , Peter Speier
IPC分类号： G01R33/48
CPC分类号： G01R33/5673 , A61B5/0456 , A61B5/055 , A61B5/721 , A61B5/7285 , G01R33/5601 , G01R33/56308 , G01R33/56366
摘要： In a method and magnetic resonance tomography apparatus for triggered implementation of a measurement (composed of partial measurements) in the magnetic resonance tomography apparatus, at least one image data set is determined from the data acquired within the scope of the partial measurements, and for triggering a reference point of the movement phase of the movement is used. The image data set is acquired in segments; the reference point is detected by a control device independent of a partial measurement, and the partial measurement following the detected reference point is conducted depending on the independently detected reference point. The wait time that specifies the interval from the end of the partial measurement to the beginning of the next partial measurement is adapted depending on the point in time of detection.
摘要翻译：在用于在磁共振断层摄影装置中触发执行测量（由部分测量组成）的方法和磁共振断层摄影装置中，根据在部分测量的范围内获取的数据确定至少一个图像数据集，并且用于触发使用运动的运动相位的参考点。图像数据集以片段获取; 参考点由独立于部分测量的控制装置检测，并且根据独立检测的参考点进行检测到的参考点之后的部分测量。指定从部分测量结束到下一个部分测量开始的间隔的等待时间根据检测时间点进行调整。

28. 发明申请

US20100085051A1 METHOD AND DEVICE TO DETERMINE AN INVERSION TIME VALUE OF TISSUE BY MEANS OF MAGNETIC RESONANCE TECHNOLOGY 有权
标题翻译：用磁共振技术测定组织反转时间值的方法和装置
公开(公告)号：US20100085051A1
公开(公告)日：2010-04-08
申请号：US12571540
申请日：2009-10-01
申请人： Arne Littmann , Peter Speier , Katrin Christel Sprung
发明人： Arne Littmann , Peter Speier , Katrin Christel Sprung
IPC分类号： G01R33/48
CPC分类号： A61B5/055 , A61B5/7285 , G01R33/281 , G01R33/56 , G01R33/5601 , G01R33/5602 , G01R33/5608 , G01R33/563 , G01R33/56325 , G01R33/56366
摘要： In a method to determine an inversion time value for contrast improvement between different tissue in a contrast agent-supported magnetic resonance imaging, a series of magnetic resonance images of an imaging area is acquired using an inversion recovery sequence with different inversion times. A structure in the magnetic resonance images is segmented and a time response of the signal intensity of image elements corresponding to one another in the magnetic resonance images of the segmented structure is automatically determined. Minima of the signal intensity in the segmented structure are determined automatically and associated with the associated inversion time values. The optimal inversion time value for contrast improvement is automatically determined from the inversion time values that have been associated with the minima of the signal intensity in the segmented structure.
摘要翻译：在用于确定造影剂支持的磁共振成像中的不同组织之间的对比度改善的反转时间值的方法中，使用具有不同反转时间的反转恢复序列来获取成像区域的一系列磁共振图像。分割磁共振图像中的结构，并且自动确定在分段结构的磁共振图像中彼此对应的图像元素的信号强度的时间响应。自动确定分段结构中的信号强度的最小值，并与相关的反转时间值相关联。根据与分段结构中的信号强度的最小值相关联的反转时间值自动确定对比度改善的最佳反演时间值。

29. 发明授权

US07245125B2 Magnetic resonance imaging apparatus and method wherein streak artifacts are minimized in modular k-space scanning 有权
标题翻译：磁共振成像装置和方法，其中在模块化k空间扫描中条纹伪影最小化
公开(公告)号：US07245125B2
公开(公告)日：2007-07-17
申请号：US10921021
申请日：2004-08-18
申请人： Wolfgang Härer , Peter Speier
发明人： Wolfgang Härer , Peter Speier
IPC分类号： G01V3/00
CPC分类号： G01R33/565 , G01R33/4824 , G01R33/56518 , G01R33/56545
摘要： In a method and MRI apparatus for the minimization of streak artifacts in modular k-space scanning in magnetic resonance imaging, an odd integer k-space scanning module number Nφ=2n+1 is defined that defines the number of incrementally rotated repeated modules of the k-space scanning process, a slice selection gradient selects any slice in the range of the object to be examined, and data for all Nφ angle-oriented k-space scanning modules in the selected slice acquired such that each k-space scanning module has an azmuthal distance of Δ ⁢ ⁢ φ 2 = 360 ⁢ ° 2 ⁢ ⁢ N φ from both adjacent projections, with the direction of the scanning of the adjacent k-space scanning modules alternating.
摘要翻译：在用于使磁共振成像中的模块化k空间扫描中的条纹伪影最小化的方法和MRI装置中，定义了奇整数k空间扫描模块编号N k空间扫描处理的递增旋转的重复模块的数量，切片选择梯度选择待检查对象的范围内的任何切片，以及用于所有N＆lt; phi＆lt; 所选择的片段中的扫描模块被采集，使得每个k空间扫描模块的azmuthal距离为 $Delta$

30. 发明申请

US20060253018A1 Calibrating method for artifact-reduced MRT imaging when there is FOV displacement 有权
标题翻译：当有FOV位移时，用于伪影MRT成像的校准方法
公开(公告)号：US20060253018A1
公开(公告)日：2006-11-09
申请号：US11410630
申请日：2006-04-25
申请人： Peter Speier , Florian Trautwein
发明人： Peter Speier , Florian Trautwein
IPC分类号： A61B5/05
CPC分类号： G01R33/565 , G01R33/4824 , G01R33/561 , G01R33/58
摘要： The present invention relates generally to nuclear magnetic resonance tomography (synonym: magnetic resonance tomography—MRT) as used in medical applications for examining patients; it relates in particular to a calibrating method when there is FOV displacement within a plane through angle-dependent modulating of the phase of the Fourier DC point of the respective read-out direction in MRT imaging for determining the device-specific dependency of the time delay requiring to be compensated between the reference signal effecting modulation and the read-out measuring data points of the respective read-out direction of settable measurement parameters.
摘要翻译：本发明一般涉及用于检查患者的医疗应用中使用的核磁共振断层扫描（同义词：磁共振断层扫描-MRT）; 特别涉及一种校准方法，当在MRT成像中通过与MRT成像中的相应读出方向的傅里叶DC点相位相关的角度相关调制在平面内存在FOV位移时，用于确定时间延迟的器件特定依赖性需要在参考信号影响调制与可设置测量参数的相应读出方向的读出测量数据点之间进行补偿。

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