公开(公告)号：US09057770B2

公开(公告)日：2015-06-16

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： G01V3/00 ,  G01R33/48 ,  G01R33/56

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：US08779771B2

公开(公告)日：2014-07-15

申请号：US13213253

申请日：2011-08-19

申请人： Bjoern Heismann ,  Sebastian Schmidt ,  Markus Vester ,  Anke Weissenborn

发明人： Bjoern Heismann ,  Sebastian Schmidt ,  Markus Vester ,  Anke Weissenborn

IPC分类号： G01V3/00

CPC分类号： A61B5/055 ,  A61B5/0263 ,  A61B5/4064

摘要： In a magnetic resonance marking system marking a flowing medium in a marking region, as well as in a magnetic resonance system with such a magnetic resonance marking system, a method to control a magnetic resonance marking system, and a method to generate magnetic resonance exposures, a radio-frequency transmission device generates marking radio-frequency signals, and a marking radio-frequency transmission coil emits the marking radio-frequency signals in the marking region. A magnetic field determination device determines a magnetic field strength in the marking region, and a control unit derives a marking transmission frequency from the determined magnetic field strength and to control the radio-frequency transmission device so that marking radio-frequency signals at the derived marking transmission frequency are emitted by the marking radio-frequency transmission coil.

摘要翻译： 在标记区域中的流动介质的磁共振标记系统中，以及在具有这种磁共振标记系统的磁共振系统中，控制磁共振标记系统的方法和产生磁共振曝光的方法， 射频发送装置生成标记射频信号，标记射频发送线圈在标记区域发出标记射频信号。 磁场确定装置确定标记区域中的磁场强度，并且控制单元从确定的磁场强度导出标记传输频率，并且控制射频传输装置，从而在导出的标记处标记射频信号 传输频率由标记射频发射线圈发射。

公开(公告)号：US20130101198A1

公开(公告)日：2013-04-25

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

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：US20120153953A1

公开(公告)日：2012-06-21

申请号：US13326672

申请日：2011-12-15

申请人： David Grodzki ,  Bjoern Heismann ,  Sebastian Schmidt

发明人： David Grodzki ,  Bjoern Heismann ,  Sebastian Schmidt

IPC分类号： G01R33/44

CPC分类号： G01R33/3806 ,  G01R33/34007 ,  G01R33/381 ,  G01R33/385

摘要： A magnetic resonance apparatus for examination in THE teeth and/or jaw region of a patient has at least one basic magnet to generate a constant basic magnetic field. The basic magnet is formed at least in part from at least one magnetic coil pair with at least two magnetic coils, and the at least one magnetic coil pair generates the basic magnetic field with a homogeneous magnetic field region between the at least two magnetic coils thereof.

摘要翻译： 用于在患者的牙齿和/或颌部区域进行检查的磁共振装置具有至少一个基本磁体以产生恒定的基本磁场。 基本磁体至少部分地由至少一个具有至少两个磁性线圈的电磁线圈对形成，并且所述至少一个磁线圈对在其至少两个磁性线圈之间产生具有均匀磁场区域的基本磁场 。

公开(公告)号：US07643866B2

公开(公告)日：2010-01-05

申请号：US11300416

申请日：2005-12-15

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： A61B5/05

CPC分类号： A61B6/504 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482

摘要： A method is disclosed for producing a computed tomography display of tissue structures by applying a contrast medium. A contrast medium is applied to a patient for better visualization of the tissue structure to be examined. An X-ray scan is performed during the presence of the one contrast medium, and computed tomography 2- or 3-dimensional pictures are subsequently reconstructed from the X-ray scan data obtained. In the method, absorption data are measured for at least two different energy spectra, a computed tomography intermediate image is reconstructed per energy spectrum, and the distribution of the one contrast medium in the tissue is determined from the different energy-specific absorption behavior between tissue and contrast medium.

摘要翻译： 公开了通过应用造影剂来生成组织结构的计算机断层显示的方法。 将造影剂应用于患者以更好地观察待检查的组织结构。 在存在一个造影剂的过程中执行X射线扫描，并且随后从所获得的X射线扫描数据重建计算机断层摄影2维或3维图像。 在该方法中，对于至少两种不同的能量谱测量吸收数据，每个能谱重建计算机断层摄影中间图像，并且根据组织之间的不同能量 - 特异性吸收行为确定组织中一种造影剂的分布 和造影剂。

公开(公告)号：US07477765B2

公开(公告)日：2009-01-13

申请号：US11060481

申请日：2005-02-18

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： G06K9/00

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：US07362844B2

公开(公告)日：2008-04-22

申请号：US11203290

申请日：2005-08-15

申请人： Bjoern Heismann ,  Silke Janssen

发明人： Bjoern Heismann ,  Silke Janssen

IPC分类号： H05G1/60

CPC分类号： A61B6/032 ,  Y10S378/901

摘要： A tomography appliance and method for a tomography appliance make it possible to calculate, in a simple and efficient manner, detector-element-related coefficients of an intensity function dependent on the detector output signal and to calculate the X-ray-emitter-related coefficients of an intensity function dependent on an X-ray emitter input value. This is done on the basis of measured detector output signals and at least one X-ray emitter input value, such that the intensity which acts precisely on the respective detector element can be determined from X-ray radiation originating from the X-ray emitter.

摘要翻译： 层析成像装置的断层摄影装置和方法使得可以以简单有效的方式计算取决于检测器输出信号的强度函数的检测器元件相关系数，并计算X射线 - 发射体相关系数 的强度函数取决于X射线发射体输入值。 这是基于测量的检测器输出信号和至少一个X射线发射器输入值进行的，使得可以从源自X射线发射器的X射线辐射确定精确地对各个检测器元件施加的强度。

公开(公告)号：US07050533B2

公开(公告)日：2006-05-23

申请号：US10964916

申请日：2004-10-15

申请人： Bjoern Heismann ,  Andreas Horst Mahnken

发明人： Bjoern Heismann ,  Andreas Horst Mahnken

IPC分类号： G01N23/87

CPC分类号： A61B6/508 ,  A61B6/032 ,  A61B6/482 ,  A61B6/50 ,  A61B6/505 ,  A61B6/583

摘要： A method and a device are proposed for determining the type of fluid in a fluid mass in an object. X-ray attenuation data is supplied from one or a plurality of X-ray recordings of an object area including the fluid mass in the object, which were acquired with at least two different X-ray spectra or detector weightings. The X-ray attenuation data is used to determine values for effective atomic number and density for the fluid mass and average these to obtain a mean value for effective atomic number and density for the fluid mass. Comparison data is also supplied, which indicates fluctuation ranges for combinations of effective atomic number and density for different types of fluid. The mean values for effective atomic number and density of the fluid mass are compared with the comparison data to determine the fluctuation range and thereby the type of fluid, into which the two mean values fall. The method and associated device can be used to determine the type of fluid in a fluid mass in an object in a reliable and unambiguous manner.

摘要翻译： 提出了一种用于确定物体中的流体质量中的流体类型的方法和装置。 X射线衰减数据从包含物体中的流体质量的物体区域的一个或多个X射线记录提供，该X射线记录用至少两个不同的X射线光谱或检测器加权获得。 X射线衰减数据用于确定流体质量的有效原子数和密度的值，并且平均这些值以获得流体质量的有效原子数和密度的平均值。 还提供比较数据，其指示用于不同类型的流体的有效原子数和密度的组合的波动范围。 将流体质量的有效原子序数和密度的平均值与比较数据进行比较，以确定波动范围，从而确定两个平均值下降的流体类型。 该方法和相关装置可用于以可靠和明确的方式确定物体中流体质量中的流体类型。

公开(公告)号：US07050530B2

公开(公告)日：2006-05-23

申请号：US10983061

申请日：2004-11-05

申请人： Bjoern Heismann

发明人： Bjoern Heismann

IPC分类号： G01N21/00

CPC分类号： A61B6/00 ,  A61B6/4035 ,  A61B6/482 ,  G01N23/04

摘要： A method is proposed for the spatially-resolved determination of the concentration of n elements and/or element combinations in an object to be examined that includes these elements and/or element combinations. In the method, use is made of an X-ray installation to record a number of digital X-ray images of at least one region of the object to be examined with the aid of m≧n different spectral distributions of the X-radiation S(E) and/or of the detector sensitivity D(E), in order to obtain m attenuation values for each pixel representing the same location in the X-ray images. The concentrations of the n elements and/or element combinations are then calculated for at least one pixel from the respective m attenuation values while taking account of known spectral absorption spectra of the n elements and/or element combinations and of the m different spectral distributions of the X-radiation and/or of the detector sensitivity.

摘要翻译： 提出了一种用于空间分辨确定包括这些元素和/或元素组合在内的待检查对象中的n个元素和/或元素组合的浓度的方法。 在该方法中，使用X射线设备来借助于X射线的m> = n个不同光谱分布来记录待检查对象的至少一个区域的多个数字X射线图像 S（E）和/或检测器灵敏度D（E），以便为表示X射线图像中相同位置的每个像素获得m个衰减值。 然后从各个m衰减值计算n个元素和/或元素组合的至少一个像素的浓度，同时考虑到n个元素和/或元素组合的已知光谱吸收光谱以及m个不同光谱分布的 X辐射和/或检测器灵敏度。

公开(公告)号：US20050184246A1

公开(公告)日：2005-08-25

申请号：US11053938

申请日：2005-02-10

申请人： Ludwig Danzer ,  Bjoern Heismann ,  Richard Matz ,  Heinz Pilz ,  Stefan Wirth ,  Joerg Zapf

发明人： Ludwig Danzer ,  Bjoern Heismann ,  Richard Matz ,  Heinz Pilz ,  Stefan Wirth ,  Joerg Zapf

IPC分类号： G01T7/00 ,  G01T1/16 ,  G01T1/20 ,  G01T1/24 ,  G01T1/29

CPC分类号： G01T1/2928 ,  G01T1/243

摘要： A detector module for an X-ray computer tomograph, includes a number of sensor arrays provided next to one another on a printed circuit board. Each of the sensor arrays includes a plurality of first contact elements on a top side, averted from the printed circuit board. In order to make contact with the sensor array, the first contact elements are electrically connected to second contact elements with the aid of conductor tracks that are accommodated in or on an electrically insulating flexible carrier.

摘要翻译： 用于X射线计算机断层摄影机的检测​​器模块包括在印刷电路板上彼此相邻设置的多个传感器阵列。 每个传感器阵列包括从印刷电路板避开的顶侧上的多个第一接触元件。 为了与传感器阵列接触，第一接触元件借助于容纳在电绝缘的柔性载体中或之上的导体轨迹电连接到第二接触元件。