公开(公告)号：US20140086469A1

公开(公告)日：2014-03-27

申请号：US14036352

申请日：2013-09-25

申请人： Alban Lefebvre ,  Jun Liu ,  Edgar Mueller ,  Mariappan S. Nadar ,  Michaela Schmidt ,  Michael Zenge ,  Qiu Wang

发明人： Alban Lefebvre ,  Jun Liu ,  Edgar Mueller ,  Mariappan S. Nadar ,  Michaela Schmidt ,  Michael Zenge ,  Qiu Wang

IPC分类号： G06T11/00

CPC分类号： G06T11/005 ,  G01R33/482 ,  G01R33/4824 ,  G01R33/5608 ,  G01R33/5611 ,  G01R33/56308 ,  G01R33/5635

摘要： A method of image reconstruction for a magnetic resonance imaging (MRI) system having a plurality of coils includes obtaining k-space scan data captured by the MRI system, the k-space scan data being representative of an undersampled region over time, determining a respective coil sensitivity profile for the region for each coil of the plurality of coils, and iteratively reconstructing dynamic images for the region from the k-space scan data via an optimization of a minimization problem. The minimization problem is based on the determined coil sensitivity profiles and redundant Haar wavelet transforms of the dynamic images.

摘要翻译： 一种用于具有多个线圈的磁共振成像（MRI）系统的图像重建方法包括获得由MRI系统捕获的k空间扫描数据，k空间扫描数据表示随时间推移的欠采样区域，确定相应的 线圈灵敏度分布，用于多个线圈的每个线圈的区域，并且通过最小化问题的优化从k空间扫描数据迭代地重建该区域的动态图像。 最小化问题是基于确定的线圈灵敏度分布和动态图像的冗余哈尔小波变换。

公开(公告)号：US08483455B2

公开(公告)日：2013-07-09

申请号：US12732555

申请日：2010-03-26

申请人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

发明人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

IPC分类号： G06K9/00

CPC分类号： G01R33/5635 ,  A61B5/055 ,  A61B5/7207

摘要： In a method and device to evaluate a time series of in particular two-dimensional images of a contrast agent flow in at least one blood vessel of the human body within the scope of a test bolus measurement, wherein the acquisition of the time series begins with administration of the contrast agent, the time series of two-dimensional images or a time series of images derived from this is used as a time series of evaluation images, and in at least one evaluation image exhibiting a contrast agent signal, at least one point associated with a blood vessel is determined semi-automatically or automatically and transferred to further evaluation images. For every blood vessel discovered in this way, a temporal contrast agent course curve is determined (in particular via a fit) automatically from the image signal of the evaluation images at the at least one point and/or in a region around the marked point in the blood vessel and at least one item of contrast agent information that affects the temporal workflow of a subsequent measurement is determined from at least one contrast agent course curve.

摘要翻译： 在用于在测试推注测量范围内评估人体至少一个血管中的造影剂流的特定二维图像的时间序列的方法和装置中，其中时间序列的获取开始于 使用对比剂的施用，二维图像的时间序列或由此导出的图像的时间序列作为评价图像的时间序列，并且在至少一个呈现造影剂信号的评价图像中，至少一个点 半自动或自动地确定与血管相关联，并转移到另外的评估图像。 对于以这种方式发现的每个血管，在评估图像的图像信号的至少一点和/或周围的标记点周围的区域中自动地确定（特别是通过拟合）的时间造影剂过程曲线 从至少一个造影剂路线曲线确定影响后续测量的时间工作流程的血管和至少一个造影剂信息项。

公开(公告)号：US20100280357A1

公开(公告)日：2010-11-04

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。

公开(公告)号：US20100246909A1

公开(公告)日：2010-09-30

申请号：US12732555

申请日：2010-03-26

申请人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

发明人： Thomas Blum ,  Michaela Schmidt ,  Peter Schmitt ,  Michael Zenge

IPC分类号： G06K9/00

CPC分类号： G01R33/5635 ,  A61B5/055 ,  A61B5/7207

摘要： In a method and device to evaluate a time series of in particular two-dimensional images of a contrast agent flow in at least one blood vessel of the human body within the scope of a test bolus measurement, wherein the acquisition of the time series begins with administration of the contrast agent, the time series of two-dimensional images or a time series of images derived from this is used as a time series of evaluation images, and in at least one evaluation image exhibiting a contrast agent signal, at least one point associated with a blood vessel is determined semi-automatically or automatically and transferred to further evaluation images. For every blood vessel discovered in this way, a temporal contrast agent course curve is determined (in particular via a fit) automatically from the image signal of the evaluation images at the at least one point and/or in a region around the marked point in the blood vessel and at least one item of contrast agent information that affects the temporal workflow of a subsequent measurement is determined from at least one contrast agent course curve.

摘要翻译： 在用于在测试推注测量范围内评估人体至少一个血管中的造影剂流的特定二维图像的时间序列的方法和装置中，其中时间序列的获取开始于 使用对比剂的施用，二维图像的时间序列或由此导出的图像的时间序列作为评价图像的时间序列，并且在至少一个呈现造影剂信号的评价图像中，至少一个点 半自动或自动地确定与血管相关联，并转移到另外的评估图像。 对于以这种方式发现的每个血管，在评估图像的图像信号的至少一点和/或周围的标记点周围的区域中自动地确定（特别是通过拟合）的时间造影剂过程曲线 从至少一个造影剂路线曲线确定影响后续测量的时间工作流程的血管和至少一个造影剂信息项目。

公开(公告)号：US20100199207A1

公开(公告)日：2010-08-05

申请号：US12698287

申请日：2010-02-02

申请人： Andrea Hopf ,  Stefan Assmann ,  Karlheinz Glaser-Seidnitzer ,  Michaela Schmidt

发明人： Andrea Hopf ,  Stefan Assmann ,  Karlheinz Glaser-Seidnitzer ,  Michaela Schmidt

IPC分类号： G06F3/048

CPC分类号： A61B34/25 ,  A61B5/055 ,  A61B5/7475 ,  A61B2034/252 ,  A61B2090/374 ,  G06F19/321 ,  G16H15/00

摘要： In a method for controlling the recording of measurement data in a medical image acquisition device, in particular a magnetic resonance device, having a control device and an operating device having a display device for displaying a user interface that comprises a navigation area and a content area, when a step is selected in the operating sequence of the acquisition of the measurement data in the navigation area of the user interface, an item of status information of the step is determined by the control device, as a function of the item of status information, at least one status-specific item of information and/or at least one status-specific operating element is shown in the content area.

摘要翻译： 一种用于控制医学图像采集装置，特别是磁共振装置中的测量数据记录的方法，具有控制装置和具有显示装置的操作装置，所述显示装置用于显示包括导航区域和内容区域的用户界面 当在用户界面的导航区域中获取测量数据的操作顺序中选择一个步骤时，该步骤的状态信息项由控制装置根据状态信息项的函数来确定 在内容区域中示出了至少一个状态特定的信息项目和/或至少一个状态特定的操作元素。

公开(公告)号：US09465093B2

公开(公告)日：2016-10-11

申请号：US14018761

申请日：2013-09-05

申请人： Andreas Greiser ,  Jens Guehring ,  Randall Kroeker ,  Edgar Mueller ,  Manuela Rick ,  Michaela Schmidt ,  Aurelien Stalder

发明人： Andreas Greiser ,  Jens Guehring ,  Randall Kroeker ,  Edgar Mueller ,  Manuela Rick ,  Michaela Schmidt ,  Aurelien Stalder

IPC分类号： G01R33/56 ,  G01R33/563

CPC分类号： G01R33/56 ,  G01R33/56366

摘要： In MR imaging of a predetermined volume segment of a living examination subject, the examination subject is stimulated with a defined stimulation pattern, MR data of the predetermined volume segment, are acquired, and MR images based on the MR data are generated that depend on the stimulation pattern. The predetermined volume segment is an internal organ or muscle tissue of the examination subject.

摘要翻译： 在生物检查对象的预定体积段的MR成像中，以确定的刺激模式刺激检查对象，获取预定体积段的MR数据，并且生成依赖于MR数据的MR图像 刺激模式。 预定体积段是检查对象的内部器官或肌肉组织。

公开(公告)号：US20090220050A1

公开(公告)日：2009-09-03

申请号：US12226858

申请日：2007-04-24

申请人： Jens Guhring ,  Michaela Schmidt

发明人： Jens Guhring ,  Michaela Schmidt

IPC分类号： H05G1/64 ,  G06K9/00

CPC分类号： A61B5/055 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/187 ,  G06T7/73 ,  G06T7/97 ,  G06T2207/10088 ,  G06T2207/30048 ,  G06T2207/30104

摘要： Disclosed is a method for determining and displaying at least one piece of information on a target volume, especially in a human body, the information being obtained from an image record. At least one embodiment of the method includes: a first and at least one second image record of a target zone encompassing the target volume are recorded, the first image record having a higher contrast regarding the boundaries of the target volume, and the first and the second image record being registered together; the target volume is segmented in the first image record; target volume image data

摘要翻译： 公开了一种用于确定和显示目标体积，特别是人体中的至少一条信息的方法，该信息是从图像记录获得的信息。 该方法的至少一个实施例包括：记录包围目标体积的目标区域的第一和至少一个第二图像记录，第一图像记录对于目标体积的边界具有较高的对比度，而第一和第 第二图像记录一起登记; 目标音量在第一个图像记录中分段; 目标体积图像数据