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1. 发明授权

US08792699B2 Motion tracking for clinical parameter derivation and adaptive flow acquisition in magnetic resonance imaging 有权
标题翻译：磁共振成像中临床参数推导和自适应流量采集的运动跟踪
公开(公告)号：US08792699B2
公开(公告)日：2014-07-29
申请号：US13239530
申请日：2011-09-22
申请人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Xiaoguang Lu , Hui Xue , Jeremy Collins , Peter Weale
发明人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Xiaoguang Lu , Hui Xue , Jeremy Collins , Peter Weale
IPC分类号： G06K9/00
CPC分类号： G01R33/56316
摘要： A method for clinical parameter derivation and adaptive flow acquisition within a sequence of magnetic resonance images includes commencing an acquisition of a sequence of images. One or more landmarks are automatically detected from within one or more images of the sequence of images. The detected one or more landmarks are propagated across subsequent images of the sequence of images. A plane is fitted to the propagation of landmarks. The positions of landmarks or alternatively the position of the fitted plane within the sequence of images is used for derivation of clinical parameters such as tissue velocities and/or performing adaptive flow acquisitions to measure blood flow properties.
摘要翻译：在磁共振图像序列内的临床参数推导和自适应流采集的方法包括开始获取图像序列。在图像序列的一个或多个图像内自动检测一个或多个地标。检测到的一个或多个地标在图像序列的后续图像中传播。一个平面适合于地标的传播。地标的位置或替代地，图像序列内的拟合平面的位置用于推导诸如组织速度的临床参数和/或执行自适应流采集以测量血流特性。

2. 发明申请

US20120076382A1 MOTION TRACKING FOR CLINICAL PARAMETER DERIVATION AND ADAPTIVE FLOW ACQUISITION IN MAGNETIC RESONANCE IMAGING 有权
标题翻译：用于临床参数衍生的运动跟踪和磁共振成像中的自适应流量采集
公开(公告)号：US20120076382A1
公开(公告)日：2012-03-29
申请号：US13239530
申请日：2011-09-22
申请人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Xiaoguang Lu , Hui Xue , Jeremy Collins , Peter Weale
发明人： Christoph Guetter , Jens Gühring , Marie-Pierre Jolly , Xiaoguang Lu , Hui Xue , Jeremy Collins , Peter Weale
IPC分类号： G06K9/00
CPC分类号： G01R33/56316
摘要： A method for clinical parameter derivation and adaptive flow acquisition within a sequence of magnetic resonance images includes commencing an acquisition of a sequence of images. One or more landmarks are automatically detected from within one or more images of the sequence of images. The detected one or more landmarks are propagated across subsequent images of the sequence of images. A plane is fitted to the propagation of landmarks. The positions of landmarks or alternatively the position of the fitted plane within the sequence of images is used for derivation of clinical parameters such as tissue velocities and/or performing adaptive flow acquisitions to measure blood flow properties.
摘要翻译：在磁共振图像序列内的临床参数推导和自适应流采集的方法包括开始获取图像序列。在图像序列的一个或多个图像内自动检测一个或多个地标。检测到的一个或多个地标在图像序列的后续图像中传播。一个平面适合于地标的传播。地标的位置或替代地，图像序列内的拟合平面的位置用于推导诸如组织速度的临床参数和/或执行自适应流采集以测量血流特性。

3. 发明授权

US08975892B2 Method of optimizing magnetic resonance image contrast with MRI relaxation time scanning parameters correlated to age of a subject 有权
标题翻译：利用与受试者年龄相关的MRI弛豫时间扫描参数优化磁共振图像对比度的方法
公开(公告)号：US08975892B2
公开(公告)日：2015-03-10
申请号：US13309710
申请日：2011-12-02
申请人： Aaron J. Flammang , Christopher Glielmi , Peter Weale
发明人： Aaron J. Flammang , Christopher Glielmi , Peter Weale
IPC分类号： G01R33/50 , G01R33/54
CPC分类号： G01R33/543 , G01R33/50
摘要： A method (100) that automates the process of selecting parameters for MR imaging acquisition to provide imaging with optimal image contrast.
摘要翻译：一种自动化MR成像采集参数选择处理以提供最佳图像对比度成像的方法（100）。

4. 发明授权

US08487613B2 System for blood flow velocity determination using MR imaging 有权
标题翻译：使用MR成像进行血流速度测定的系统
公开(公告)号：US08487613B2
公开(公告)日：2013-07-16
申请号：US12951104
申请日：2010-11-22
申请人： Gary McNeal , Christopher Glielmi , Peter Weale
发明人： Gary McNeal , Christopher Glielmi , Peter Weale
IPC分类号： G01R33/20 , G01V3/00
CPC分类号： G01R33/56316
摘要： A system improves accuracy of blood flow peak velocity measurements as well as the speed and precision of an MR data acquisition workflow. A system for blood flow velocity determination in MR imaging comprises an MR imaging system. The MR imaging system acquires a three dimensional (3D) MR imaging dataset of a patient anatomical volume of interest and a one dimensional (1D) MR imaging dataset within the volume of interest automatically aligned in response to 3D vector directional information. An image data processor derives the 3D vector directional information by, deriving velocity magnitude data using the acquired 3D MR imaging dataset, identifying maximum velocity data using the derived velocity magnitude data and transforming the identified maximum velocity data to provide the 3D vector directional information. A calculation processor uses the acquired 1D MR imaging dataset to calculate a blood flow velocity in a direction determined by the 3D vector directional information.
摘要翻译：系统提高血流峰值速度测量的精度，以及MR数据采集工作流程的速度和精度。 MR成像中血液流速测定系统包括MR成像系统。 MR成像系统获取感兴趣的患者解剖体积的三维（3D）MR成像数据集，以及响应于3D矢量方向信息自动对齐的感兴趣体积内的一维（1D）MR成像数据集。图像数据处理器通过使用获取的3D MR成像数据集导出速度幅度数据，使用导出的速度幅度数据识别最大速度数据并变换所识别的最大速度数据以提供3D矢量方向信息来导出3D矢量方向信息。计算处理器使用获取的1D MR成像数据集来计算由3D矢量方向信息确定的方向上的血流速度。

5. 发明授权

US08520920B2 System for dynamically improving medical image acquisition quality 有权
标题翻译：动态改善医学影像采集质量的系统
公开(公告)号：US08520920B2
公开(公告)日：2013-08-27
申请号：US12897878
申请日：2010-10-05
申请人： Jens Guehring , Peter Weale , Sven Zuehlsdorff
发明人： Jens Guehring , Peter Weale , Sven Zuehlsdorff
IPC分类号： G06K9/00 , A61B5/00
CPC分类号： A61B6/5258 , A61B6/545 , G06F19/00 , G06T7/0014 , G06T2207/10072 , G06T2207/20092 , G06T2207/30004 , G06T2207/30168
摘要： A system dynamically improves quality of medical images using at least one processing device including an image analyzer, a correction processor and a message generator. The image analyzer automatically parses and analyzes data representing an image of a particular anatomical feature of a patient acquired by a medical image acquisition device to identify defects in the image by examining the data representing the image for predetermined patterns associated with image defects. The correction processor uses a predetermined information map associating image defects with corresponding corrective image acquisition parameters to determine corrected image acquisition parameters for use in re-acquiring an image using the image acquisition device in response to an identified defect. The message generator generates a message for presentation to a user indicating an identified defect and suggesting use of the corrected image acquisition parameters for re-acquiring an image.
摘要翻译：使用包括图像分析器，校正处理器和消息发生器的至少一个处理装置，系统动态地提高医学图像的质量。图像分析器自动解析和分析表示由医学图像采集设备获取的患者的特定解剖特征的图像的数据，以通过检查表示与图像缺陷相关联的预定图案的图像的数据来识别图像中的缺陷。校正处理器使用将图像缺陷与对应的校正图像获取参数相关联的预定信息图来确定校正的图像获取参数，以响应于所识别的缺陷，使用图像获取装置重新获取图像。消息发生器产生用于向用户呈现指示所识别的缺陷的消息，并建议使用校正的图像获取参数来重新获取图像。

6. 发明申请

US20130141092A1 METHOD OF OPTIMIZING MAGNETIC RESONANCE SCANNING PARAMETERS 有权
标题翻译：优化磁共振扫描参数的方法
公开(公告)号：US20130141092A1
公开(公告)日：2013-06-06
申请号：US13309710
申请日：2011-12-02
申请人： Aaron J. Flammang , Christopher Glielmi , Peter Weale
发明人： Aaron J. Flammang , Christopher Glielmi , Peter Weale
IPC分类号： G01R33/50 , G01R33/32
CPC分类号： G01R33/543 , G01R33/50
摘要： A method (100) that automates the process of selecting parameters for MR imaging acquisition to provide imaging with optimal image contrast.
摘要翻译：一种自动化MR成像采集参数选择处理以提供最佳图像对比度成像的方法（100）。

7. 发明申请

US20100019766A1 System for Dynamically Compensating for Inhomogeneity in an MR Imaging Device Magnetic Field 审中-公开
标题翻译：用于动态补偿MR成像装置磁场中的不均匀性的系统
公开(公告)号：US20100019766A1
公开(公告)日：2010-01-28
申请号：US12481649
申请日：2009-06-10
申请人： Sven Zuehlsdorff , Peter Weale , Saurabh Shah , Andreas Greiser
发明人： Sven Zuehlsdorff , Peter Weale , Saurabh Shah , Andreas Greiser
IPC分类号： G01R33/44
CPC分类号： G01R33/3875 , G01R33/243 , G01R33/5614
摘要： A system automatically dynamically compensates for inhomogeneity in an MR imaging device magnetic field. An MR imaging compensation system applies swept frequency magnetic field variation in determining an estimate of proton spin frequency at multiple individual locations associated with individual image elements in an anatomical volume of interest and substantially independently of tissue associated relaxation time. For the multiple individual locations, the system determines an offset frequency comprising a difference between a determined estimate of proton spin frequency associated with an individual image element location and a nominal proton spin frequency. The system derives data representing an electrical signal to be applied to magnetic field generation coils to substantially compensate for determined offset frequencies at the multiple individual locations. An MR magnetic field coil generates a magnetic field in response to applying the electrical signal to substantially compensate for magnetic field variation represented by the determined offset frequencies at the multiple individual locations.
摘要翻译：系统自动动态补偿MR成像装置磁场的不均匀性。 MR成像补偿系统应用扫描频率磁场变化来确定在感兴趣的解剖体积中与各个图像元素相关联的多个单独位置处的质子旋转频率的估计，并且基本上独立于组织相关的弛豫时间。对于多个单独位置，系统确定偏移频率，该偏移频率包括与单个图像元素位置相关联的质子自旋频率的确定估计与标称质子旋转频率之间的差异。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。 MR磁场线圈响应于施加电信号而产生磁场，以基本上补偿由多个单独位置处确定的偏移频率所表示的磁场变化。

8. 发明授权

US09014783B2 System for automated parameter setting in cardiac magnetic resonance imaging 有权
标题翻译：心脏磁共振成像自动参数设置系统
公开(公告)号：US09014783B2
公开(公告)日：2015-04-21
申请号：US12721591
申请日：2010-03-11
申请人： Wolfgang Rehwald , Peter Weale
发明人： Wolfgang Rehwald , Peter Weale
IPC分类号： A61B5/055 , G01R33/56 , G01R33/567 , A61B5/00
CPC分类号： A61B5/055 , A61B5/7285 , G01R33/5602 , G01R33/5676 , G06F19/00
摘要： A system automatically calculates optimal protocol parameters for dark-blood (DB) preparation and inversion recovery. The system automatically determines pulse sequence timing parameters for MR imaging with blood related signal suppression. The system comprises an acquisition processor for acquiring data indicating a patient heart rate. A pulse timing processor automatically determines an acquisition time of an image data set readout, relative to a blood signal suppression related magnetization preparation pulse sequence, by calculating the acquisition time in response to inputs including, (a) the acquired patient heart rate, (b) data indicating a type of image contrast of the pulse sequence employed and (c) data indicating whether an anatomical signal suppression related magnetization preparation pulse sequence used has a slice selective, or non-slice selective, data acquisition readout.
摘要翻译：系统自动计算黑血（DB）制备和反转恢复的最佳协议参数。系统通过血液相关信号抑制自动确定MR成像的脉冲序列时序参数。该系统包括用于获取指示患者心率的数据的采集处理器。相对于血液信号抑制相关的磁化准备脉冲序列，脉冲定时处理器通过计算响应于包括（a）获得的患者心率（b）的输入的获取时间来自动确定图像数据组读出的获取时间）数据，其指示使用的脉冲序列的图像对比度的类型;以及（c）指示所使用的解剖信号抑制相关磁化准备脉冲序列是否具有切片选择性或非切片选择性数据采集读出的数据。

9. 发明授权

US08374675B2 Magnetic resonance angiography with flow-compensated and flow-sensitive imaging 有权
标题翻译：磁共振血管造影与流量补偿和流敏成像
公开(公告)号：US08374675B2
公开(公告)日：2013-02-12
申请号：US12683620
申请日：2010-01-07
申请人： Xiaoming Bi , Michaela Schmidt , Peter Schmitt , Peter Weale
发明人： Xiaoming Bi , Michaela Schmidt , Peter Schmitt , Peter Weale
IPC分类号： A61B5/055
CPC分类号： G01R33/56316 , A61B5/0263 , A61B5/055 , A61B5/7285 , G01R33/5614 , G01R33/5635 , G01R33/56509
摘要： In a magnetic resonance angiography method with flow-compensated and flow-sensitive imaging and a magnetic resonance apparatus for implementing such a method, a first MR data set of the examination region is acquired with an imaging sequence in which vessels in the examination region are shown with high signal intensity, a second MR data set of the examination region with an imaging sequence in which the vessels in the examination region are shown with low signal intensity, and the angiographic magnetic resonance image is calculated in a processor by taking the difference of the first and second data set. The first data set is acquired with an imaging sequence with reduced flow sensitivity and the second data set is acquired with an imaging sequence with an increased flow sensitivity compared to the initial imaging sequence.
摘要翻译：在具有流量补偿和流敏成像的磁共振血管造影方法和用于实施这种方法的磁共振装置中，采用其中示出了检查区域中的血管的成像序列来获取检查区域的第一MR数据集具有高信号强度的检查区域的第二MR数据集，具有其中示出了具有低信号强度的检查区域中的血管的成像序列，并且在处理器中通过取其中的差异来计算血管造影磁共振图像第一和第二数据集。利用具有降低的流动灵敏度的成像序列获取第一数据集，并且与初始成像序列相比，以具有增加的流动灵敏度的成像序列获取第二数据集。

10. 发明申请

US20110175608A1 System for Blood Flow Velocity Determination using MR Imaging 有权
标题翻译：使用MR成像进行血流速度测定的系统
公开(公告)号：US20110175608A1
公开(公告)日：2011-07-21
申请号：US12951104
申请日：2010-11-22
申请人： Gary McNeal , Christopher Glielmi , Peter Weale
发明人： Gary McNeal , Christopher Glielmi , Peter Weale
IPC分类号： G01R33/48
CPC分类号： G01R33/56316
摘要： A system improves accuracy of blood flow peak velocity measurements as well as the speed and precision of an MR data acquisition workflow. A system for blood flow velocity determination in MR imaging comprises an MR imaging system. The MR imaging system acquires a three dimensional (3D) MR imaging dataset of a patient anatomical volume of interest and a one dimensional (1D) MR imaging dataset within the volume of interest automatically aligned in response to 3D vector directional information. An image data processor derives the 3D vector directional information by, deriving velocity magnitude data using the acquired 3D MR imaging dataset, identifying maximum velocity data using the derived velocity magnitude data and transforming the identified maximum velocity data to provide the 3D vector directional information. A calculation processor uses the acquired 1D MR imaging dataset to calculate a blood flow velocity in a direction determined by the 3D vector directional information.
摘要翻译：系统提高血流峰值速度测量的精度，以及MR数据采集工作流程的速度和精度。 MR成像中血液流速测定系统包括MR成像系统。 MR成像系统获取感兴趣的患者解剖体积的三维（3D）MR成像数据集，以及响应于3D矢量方向信息自动对齐的感兴趣体积内的一维（1D）MR成像数据集。图像数据处理器通过使用获取的3D MR成像数据集导出速度幅度数据，使用导出的速度幅度数据识别最大速度数据并变换所识别的最大速度数据以提供3D矢量方向信息来导出3D矢量方向信息。计算处理器使用获取的1D MR成像数据集来计算由3D矢量方向信息确定的方向上的血流速度。

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