公开(公告)号：US20050185829A1

公开(公告)日：2005-08-25

申请号：US11060481

申请日：2005-02-18

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： A61B6/03 ,  G01N23/04 ,  G06K9/00 ,  G06T7/00 ,  G06T7/40

CPC分类号： G06T7/0012 ,  G06T11/008 ,  G06T2207/30004

摘要： A method is for visually displaying quantitative information in medical imaging data records, in which an image data record and/or one or more additional data records, in which each image element of the image data record has one or more associated values as quantitative information, are obtained from one or more measurement data records after one or more processing steps. The image data record and/or the one or more additional data records is/are used to calculate a significance function which, for each image element in a prescribable image region, represents a degree of similarity between the one or more values associated with the image element and a prescribable value or a prescribable value combination. Further, the significance function is graphically displayed on an image reproduction unit. The present method can be used for visually displaying quantitative information contained in medical imaging data records easily and clearly.

摘要翻译： 一种用于在医学成像数据记录中可视地显示定量信息的方法，其中图像数据记录和/或一个或多个附加数据记录，其中图像数据记录的每个图像元素具有一个或多个相关联的值作为定量信息， 在一个或多个处理步骤之后从一个或多个测量数据记录获得。 图像数据记录和/或一个或多个附加数据记录用于计算显着性函数，对于可处方图像区域中的每个图像元素，其表示与图像相关联的一个或多个值之间的相似度 元素和可处方的价值或规定的价值组合。 此外，显着性功能被图形地显示在图像再现单元上。 本方法可用于容易且清晰地视觉显示包含在医学成像数据记录中的定量信息。

公开(公告)号：US09739856B2

公开(公告)日：2017-08-22

申请号：US13922568

申请日：2013-06-20

申请人： Randy Buckner ,  Bjoern Heismann ,  Arne Hengerer

发明人： Randy Buckner ,  Bjoern Heismann ,  Arne Hengerer

IPC分类号： G01V3/00 ,  G01R33/48

CPC分类号： G01R33/4806

摘要： In a method and apparatus for acquiring magnetic resonance data, a resting state functional magnetic resonance imaging sequence is executed in alternation with a morphological data acquisition sequence. The alternating sequences are executed with no time interruptions therebetween, with at least one repetition of the alternating sequences. The resting state functional magnetic resonance imaging sequence can be a BOLD-EPI sequence, and the morphological imaging sequence can be an MPRAGE sequence.

公开(公告)号：US09101659B2

公开(公告)日：2015-08-11

申请号：US13656932

申请日：2012-10-22

申请人： David Grodzki ,  Bjoern Heismann

发明人： David Grodzki ,  Bjoern Heismann

IPC分类号： G06K9/00 ,  A61K48/00 ,  G01R33/48 ,  G01R33/565 ,  G06F17/16

CPC分类号： A61K48/00 ,  A61B5/055 ,  A61B5/7203 ,  G01R33/48 ,  G01R33/4816 ,  G01R33/565 ,  G06F17/16

摘要： In a method and apparatus for the correction of artifacts in magnetic resonance images (MR) acquired with an MR pulse sequence in which gradients are switched simultaneously during the radiation of at least one non-selective excitation pulse, measurement data acquired with the pulse sequence in k-space are loaded into a processor, in which a perturbation matrix is determined on the basis of spatial and k-space point data of the acquired measurement data and the gradients used during the excitation. A corrected image is calculated from the acquired measurement data in k-space and the perturbation matrix, with the calculation of the corrected image including a matrix inversion of the perturbation matrix. The corrected image is then stored or displayed.

摘要翻译： 在用于在至少一个非选择性激励脉冲的辐射期间同时切换梯度的MR脉冲序列获取的磁共振图像（MR）中的伪影的校正方法和装置中，以脉冲序列获取的测量数据 k空间被加载到处理器中，其中基于所获取的测量数据的空间和k空间点数据以及在激励期间使用的梯度来确定扰动矩阵。 根据所获取的k空间测量数据和扰动矩阵计算校正图像，校正图像的计算包括扰动矩阵的矩阵求逆。 然后存储或显示校正后的图像。

公开(公告)号：US08878533B2

公开(公告)日：2014-11-04

申请号：US13245191

申请日：2011-09-26

申请人： David Grodzki ,  Bjoern Heismann

发明人： David Grodzki ,  Bjoern Heismann

IPC分类号： G01R33/48 ,  G01R33/34 ,  A61B5/055

CPC分类号： G01R33/4824 ,  A61B5/055

摘要： In a magnetic resonance system and method the imaging area is readout by: (a) switching at least two phase coding gradients in respective spatial directions, (b) at the full strength of the phase coding gradients, radiating a non-slice-selective RF excitation pulse, (c) after a time t1 after the last radiated excitation pulse, acquiring echo signals entered as raw data points along the radial k-space trajectory predetermined by the strength of the phase coding gradients, (d) repeating (a) through (c) with different phase coding gradients until k-space corresponding to the imaging area is read out in a first region along radial k-space trajectories, depending on the time t1, and (e) reading out a remainder of k-space that corresponds to the imaging area, that is not covered by the first region of k-space and includes the k-space center, in a different manner than by (a) through (d).

摘要翻译： 在磁共振系统和方法中，成像区域通过以下方式读出：（a）在各个空间方向上切换至少两个相位编码梯度，（b）在相位编码梯度的全强度下，辐射非切片选择性RF 励磁脉冲，（c）在最后辐射激励脉冲之后的时间t1之后，获取沿着相位编码梯度的强度预定的径向k空间轨迹作为原始数据点输入的回波信号，（d）重复（a）到 （c）具有不同的相位编码梯度，直到根据时间t1在沿着径向k空间轨迹的第一区域中读出对应于成像区域的k空间，以及（e）读出剩余的k空间， 对应于与（a）至（d）不同的方式，不是由k空间的第一区域覆盖并且包括k空间中心的成像区域。

公开(公告)号：US20140232396A1

公开(公告)日：2014-08-21

申请号：US14182512

申请日：2014-02-18

申请人： David Grodzki ,  Bjoern Heismann

发明人： David Grodzki ,  Bjoern Heismann

IPC分类号： G01R33/54

CPC分类号： G01R33/543 ,  G01R33/56509

摘要： In a method and a pulse sequence optimization device to determine a pulse sequence for a magnetic resonance system, a pulse sequence is selected for optimization that includes a number of radio-frequency pulses and a number of gradient pulses chronologically coordinated therewith. An automatic analysis of the pulse sequence takes place to identify fixed point/time periods in the pulse sequence that are to be left unmodified, and modifiable time intervals in the pulse sequence that may be optimized. An automatic optimization of gradient pulses in the modifiable time intervals takes place according to a predetermined optimization criterion, while keeping the length of modifiable time intervals constant.

摘要翻译： 在用于确定磁共振系统的脉冲序列的方法和脉冲序列优化装置中，选择脉冲序列用于优化，其包括多个射频脉冲和与其顺序协调的多个梯度脉冲。 进行脉冲序列的自动分析，以识别未修改的脉冲序列中的固定点/时间段，以及可优化的脉冲序列中的可修改时间间隔。 根据预定的优化标准，可修改时间间隔内的梯度脉冲的自动优化，同时保持可修改的时间间隔的长度恒定。

公开(公告)号：US20130265050A1

公开(公告)日：2013-10-10

申请号：US13857311

申请日：2013-04-05

申请人： David Grodzki ,  Bjoern Heismann ,  Jeanette Lenger ,  Sebastian Schmidt

发明人： David Grodzki ,  Bjoern Heismann ,  Jeanette Lenger ,  Sebastian Schmidt

IPC分类号： G01R33/48 ,  G01R33/54

CPC分类号： G01R33/4806 ,  G01R33/4816 ,  G01R33/54 ,  G01R33/5619

摘要： In a method and a magnetic resonance (MR) system for functional MR imaging of a predetermined volume segment of THE brain of a living examination subject, an RF excitation pulse is radiated into the subject and at least one magnetic field gradient is activated, and MR data of the predetermined volume segment is acquired beginning at a predetermined echo time after the RF excitation pulse. The echo time is in a time period of 10 μs to 1000 μs.

摘要翻译： 在用于生物检查对象的脑的预定体积段的功能MR成像的方法和磁共振（MR）系统中，RF激发脉冲被辐射到对象中，并且激活至少一个磁场梯度，并且MR 在RF激励脉冲之后的预定回波时间开始获取预定音量段的数据。 回声时间在10到1000之间。

公开(公告)号：US20130027038A1

公开(公告)日：2013-01-31

申请号：US13537413

申请日：2012-06-29

申请人： Bjoern Heismann ,  Sebastian Schmidt

发明人： Bjoern Heismann ,  Sebastian Schmidt

IPC分类号： G01R33/48

CPC分类号： G01R33/4824 ,  G01R33/48 ,  G01R33/4816 ,  G01R33/56

摘要： In a method for recording a magnetic resonance image with a magnetic resonance device, in which several projection image data records are recorded in succession with different gradient orientations, from which, through back projection, the magnetic resonance image is reconstructed, the recording of a projection data record in a recording time frame proceeds with a temporal frequency modulated excitation pulse of a pulse duration, wherein, through the frequency modulation of the excitation pulse, all spins to be recorded within the scope of the projection data record are excited in a temporal sequence and wherein the frequency modulation function describing the frequency modulation during the pulse duration exhibits at least one maximum and/or at least one minimum. During the excitation duration, a time-resolved reception signal is detected. The projection data record is determined from the reception signal through evaluation.

摘要翻译： 在用磁共振装置记录磁共振图像的方法中，其中以不同的梯度取向连续地记录多个投影图像数据记录，通过背投影重建磁共振图像，记录投影 在记录时间帧中的数据记录是以脉冲持续时间的时间频率调制激励脉冲进行的，其中，通过激励脉冲的频率调制，将在时间序列中激发要记录在投影数据记录范围内的所有旋转 并且其中描述所述脉冲持续时间期间的频率调制的所述频率调制函数具有至少一个最大值和/或至少一个最小值。 在激励期间，检测时间分辨的接收信号。 通过评估从接收信号确定投影数据记录。

公开(公告)号：US07196331B2

公开(公告)日：2007-03-27

申请号：US11033516

申请日：2005-01-12

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： G01T1/20

CPC分类号： G01T1/1648 ,  A61B6/032 ,  G01N23/046 ,  G01N2223/419 ,  H01L27/14658

摘要： A detector module is proposed for producing an X-ray detector for an X-ray computed tomograph. The module includes a number of detector units, each including sensor elements arranged next to one another in the z-direction and in a phi-direction running perpendicular thereto. The detector units are held on a carrier plate in the manner of a column extending in the z-direction. In order to ensure a precise alignment of the sensor elements, the detector units are positioned on the carrier plate via a collimator element.

摘要翻译： 提出了一种检测器模块，用于生产用于X射线计算机断层摄影机的X射线检测器。 模块包括多个检测器单元，每个检测器单元包括在z方向上彼此相邻布置的传感器元件以及垂直于其的方向。 检测器单元以沿z方向延伸的列的方式保持在承载板上。 为了确保传感器元件的精确对准，检测器单元经由准直器元件定位在载体板上。

公开(公告)号：US20060124856A1

公开(公告)日：2006-06-15

申请号：US11287360

申请日：2005-11-28

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： G01T1/24

CPC分类号： G01T1/2985 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/166 ,  G01T1/2928

摘要： A detector bar, a detector formed from a number of detector bars, and a computed-tomography unit including such a detector is disclosed, each detector bar being formed from a number of individual modules. A detector bar has a module carrier for mechanically retaining the individual modules, and a printed circuit board, structurally separate from the module carrier, for making electric contact with the individual modules. The individual modules can thus be exchanged without disturbance, and simple aligning of the individual modules can thus be carried out while electric contact is simultaneously made.

摘要翻译： 公开了一种检测器条，由许多检测器棒形成的检测器和包括这种检测器的计算机断层摄影单元，每个检测器条由多个单独的模块形成。 检测器杆具有用于机械地保持各个模块的模块载体，以及结构上与模块载体分离的印刷电路板，用于与各个模块进行电接触。 因此，可以不扰乱地交换各个模块，从而可以在同时进行电接触的同时进行各个模块的简单对准。

公开(公告)号：US20060122500A1

公开(公告)日：2006-06-08

申请号：US11274203

申请日：2005-11-16

申请人： Bjoern Heismann ,  Andreas Mahnken

发明人： Bjoern Heismann ,  Andreas Mahnken

IPC分类号： A61B5/05

CPC分类号： G06T7/0012 ,  A61B1/00045 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/482 ,  A61B6/503 ,  G06T2207/30048

摘要： An imaging method and an apparatus for visualizing coronary heart diseases, in particular instances of myocardial infarction damage, are disclosed. The technique of computed tomography is used to record and reconstruct at least one image of the heart or a region of the heart, which image covers at least one part of the myocardium. Areas in the region of the myocardium that are defectively perfused and/or damaged are segmented by windowing measured data for the image or data derived therefrom, and displayed with identification in the image. It is thus possible, for example, to pictorially display the extent of the damage after a myocardial infarct.

摘要翻译： 公开了用于可视化冠心病的成像方法和装置，特别是心肌梗塞损伤的情况。 计算机断层扫描技术用于记录和重建心脏或心脏区域的至少一个图像，该图像覆盖心肌的至少一部分。 缺陷灌注和/或损伤的心肌区域的区域通过加窗图像的测量数据或从其导出的数据进行分割，并以图像中的识别显示。 因此，例如，可以在心肌梗死后图形显示损伤的程度。