公开(公告)号：US20100074398A1

公开(公告)日：2010-03-25

申请号：US12585575

申请日：2009-09-18

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： H05G1/60

CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/503 ,  A61B6/541

摘要： A motion control method is disclosed for controlling a relative scan feed motion of an object bearing device toward a scanner unit of a computed tomography system. Here, scan motion control signals are generated parallel to the scan feed motion for controlling the scan feed motion, which scan motion control signals are derived from variable input data obtained in parallel during a scan procedure. In at least one embodiment, the variable input data includes motion signals which represent the object motion cycle determined with the aid of an electrocardiogram, and the speed of the scan feed motion is reduced if an extrasystole is detected. Furthermore, at least one embodiment of the invention relates to a motion control module suited to this and/or an image processing actuation method and/or an image processing actuation module for actuating an image processing system.

摘要翻译： 公开了一种用于控制物体承载装置朝向计算机断层摄影系统的扫描器单元的相对扫描进给运动的运动控制方法。 这里，与用于控制扫描进给运动的扫描进给运动平行生成扫描运动控制信号，扫描运动控制信号从扫描过程中并行获得的可变输入数据导出。 在至少一个实施例中，可变输入数据包括表示借助于心电图确定的对象运动周期的运动信号，并且如果检测到收缩周期，则减少扫描进给运动的速度。 此外，本发明的至少一个实施例涉及一种适用于此和/或图像处理致动方法的运动控制模块和/或用于致动图像处理系统的图像处理致动模块。

公开(公告)号：US20080292170A1

公开(公告)日：2008-11-27

申请号：US12153120

申请日：2008-05-14

申请人： Herbert Bruder ,  Arkadiusz Polacin ,  Rainer Raupach ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Arkadiusz Polacin ,  Rainer Raupach ,  Karl Stierstorfer

IPC分类号： G06K9/00

CPC分类号： A61B6/4014 ,  A61B6/032

摘要： A method is disclosed for scattered radiation correction in an X-ray computed tomography system having at least two tube-detector systems. It is provided, according to at least one embodiment, to make use of a data record that includes data projections required for the reconstruction and a prescribed number of first scattered radiation projections. Respective scattered radiation components for the scattered radiation correction of all data projections are determined on the basis of the first scattered radiation projections and second scattered radiation projections determined therefrom.

摘要翻译： 公开了一种在具有至少两个管检测器系统的X射线计算机断层摄影系统中用于散射辐射校正的方法。 根据至少一个实施例，提供使用包括重建所需的数据投影和规定数量的第一散射辐射投影的数据记录。 基于从其确定的第一散射辐射投影和第二散射辐射投影来确定用于所有数据投影的散射辐射校正的散射辐射分量。

公开(公告)号：US20070197907A1

公开(公告)日：2007-08-23

申请号：US11641832

申请日：2006-12-20

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： A61B5/05

CPC分类号： A61B6/032 ,  A61B5/0402

摘要： A method and a tomography unit are disclosed for carrying out an analysis of a movement of an object on the basis of at least two images produced with the aid of a tomography unit at consecutive instants. A) vector field, formed from displacement vectors, is determined from in each case two images and at least one divergence value is calculated for analyzing the movement from the vector field. The divergence value renders it possible in a simple way to acquire a contraction movement or expansion movement in a qualitative and quantitative fashion, the sign of the divergence value specifying the type of movement, and the absolute value specifying the magnitude of movement of the object.

摘要翻译： 公开了一种方法和断层摄影单元，用于基于在连续时刻借助断层摄影单元产生的至少两个图像来执行物体运动的分析。 A）从位移矢量形成的矢量场是从每种情况确定两个图像，并且计算至少一个发散值用于分析来自矢量场的移动。 发散值使得可以以简单的方式以定性和定量的方式获得收缩运动或膨胀运动，指定运动类型的发散值的符号以及指定对象运动幅度的绝对值。

公开(公告)号：US08750588B2

公开(公告)日：2014-06-10

申请号：US13207507

申请日：2011-08-11

申请人： Herbert Bruder ,  Rainer Raupach ,  Johan Sunnegardh

发明人： Herbert Bruder ,  Rainer Raupach ,  Johan Sunnegardh

IPC分类号： G06K9/00

CPC分类号： A61B6/032 ,  A61B6/4441 ,  A61B6/507 ,  A61B6/5258 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10081 ,  G06T2207/30092

摘要： The method includes a weighted highpass filtering of the image data takes place here, with the weighting taking account, image element by image element, of an image noise on the respective image element in different directions such that increasing noise results in a stronger highpass effect. A noise-reducing smoothing of the image data takes place using the weighted highpass filtering.

摘要翻译： 该方法包括在这里进行图像数据的加权高通滤波，其中加权考虑图像元素的图像元素，在不同方向上对各个图像元素上的图像噪声进行加权，使得增加的噪声导致更强的高通效应。 图像数据的噪声降低平滑使用加权高通滤波进行。

公开(公告)号：US20110293160A1

公开(公告)日：2011-12-01

申请号：US13111315

申请日：2011-05-19

申请人： Herbert Bruder ,  Martin Petersilka ,  Rainer Raupach ,  Karl Schwarz

发明人： Herbert Bruder ,  Martin Petersilka ,  Rainer Raupach ,  Karl Schwarz

IPC分类号： G06K9/00

CPC分类号： A61B6/5205 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4441 ,  A61B6/482 ,  A61B6/507 ,  A61B6/5258 ,  G06T11/006 ,  G06T2211/424

摘要： A method is disclosed for reconstructing image data of an examination object from measured data, wherein the measured data was captured previously during a relative rotary motion between a radiation source of a computed tomography system and the examination object. In at least one embodiment, the measured data is modified to achieve a particular grayscale characteristic of the image data to be reconstructed. The image data is calculated by way of an iterative algorithm using the modified measured data, wherein no arithmetic step for reducing noise is employed in the iterations.

摘要翻译： 公开了一种用于从测量数据重建检查对象的图像数据的方法，其中在计算机断层摄影系统的辐射源和检查对象之间的相对旋转运动期间先前捕获测量数据。 在至少一个实施例中，修改测量数据以实现要重建的图像数据的特定灰度特性。 通过使用修改的测量数据的迭代算法计算图像数据，其中在迭代中不采用用于降低噪声的算术步骤。

公开(公告)号：US20100220912A1

公开(公告)日：2010-09-02

申请号：US12710423

申请日：2010-02-23

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： G06K9/00

CPC分类号： G06T5/002 ,  G06T5/50 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/10144 ,  G06T2207/20012 ,  G06T2207/20056 ,  G06T2207/20216 ,  G06T2207/30004

摘要： Method for the noise reduction of CT image data and an image processing system are disclosed, with a scanning of an examination object and generation of at least two CT image data records each taking place on the basis of a different x-ray energy spectrum. In at least one embodiment, a break-down of the data image records into at least two broken-down image data records takes place in each instance, with a lowest local frequency band (f(1)) with the index k=1 and at least one high local frequency band (f(k)) with the index k=2 to N. In at least one embodiment, the determination of the noise into at least one of the image data records per x-ray energy spectrum and calculation of at least one new image data record takes place in each instance by using an unchanged broken-down image data record with the lowest local frequency band and an image data record, generated from a noise-minimized weighted combination of broken-down image data records, which originate from the scannings using different x-ray energy spectra.

摘要翻译： 公开了用于CT图像数据的降噪的方法和图像处理系统，其中扫描检查对象并且基于不同的x射线能量谱产生至少两个CT图像数据记录。 在至少一个实施例中，数据图像记录分解成至少两个分解图像数据记录，每个情况下都具有索引k = 1的最低本地频带（f（1）），并且 至少一个具有索引k = 2至N的高本地频带（f（k））。在至少一个实施例中，将噪声确定为每个x射线能谱和计算中的至少一个图像数据记录 至少一个新的图像数据记录在每个实例中通过使用从分解图像数据记录的噪声最小化的加权组合产生的具有最低本地频带和图像数据记录的未变分解图像数据记录来进行 ，其来源于使用不同x射线能谱的扫描。

公开(公告)号：US20100074503A1

公开(公告)日：2010-03-25

申请号：US12585580

申请日：2009-09-18

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： G06K9/00 ,  H05G1/60

CPC分类号： A61B6/504 ,  A61B6/481 ,  A61B6/507 ,  G06F19/00 ,  G06T11/005

摘要： A method is disclosed for generating computed tomography image data records of a patient in a heart CT scan during a perfusion control by applying contrast agent. In at least one embodiment, a plurality of temporally consecutive CT data records are recorded as an exposure series with a CT system and if necessary are reconstructed. These CT data records are improved for better visualization of the perfusion by way of electronic filtering and post-processing, with all projection and/or image data determined during a CT scan being used, however with the aid of frequency filtering only the data of a projection or of a reconstructed image for generating a final representation being used which does not fall within a predetermined local frequency range of a heart movement.

摘要翻译： 公开了一种用于在灌注控制期间通过应用造影剂在心脏CT扫描中产生患者的计算机断层摄影图像数据记录的方法。 在至少一个实施例中，多个时间上连续的CT数据记录被记录为具有CT系统的曝光序列，并且如果需要重建。 改进这些CT数据记录，以通过电子滤波和后处理的方式更好地可视化灌注，所有投影和/或图像数据在CT扫描期间确定，然而借助频率滤波仅对 投影或重建图像，用于生成不在心脏运动的预定局部频率范围内的正在使用的最终表示。

公开(公告)号：US08081732B2

公开(公告)日：2011-12-20

申请号：US12753960

申请日：2010-04-05

申请人： Herbert Bruder ,  Rainer Raupach ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Rainer Raupach ,  Karl Stierstorfer

IPC分类号： G01N23/00

CPC分类号： G01N23/046 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5282 ,  G01N2223/206 ,  G01N2223/419

摘要： A multi-emitter computed tomography scanner is disclosed, including a plurality of x-ray emitter/detector arrangement pairs arranged offset at an angle to one another. In at least one embodiment, the detector arrangements of the pairs are designed to be energy selective.

摘要翻译： 公开了一种多发射体计算机断层摄影扫描器，包括以彼此成角度偏移地设置的多个x射线发射器/检测器布置对。 在至少一个实施例中，对的检测器布置被设计为能量选择性的。

公开(公告)号：US07860209B2

公开(公告)日：2010-12-28

申请号：US12000831

申请日：2007-12-18

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： H05G1/62 ,  G01N23/083

CPC分类号： A61B6/541 ,  A61B6/027

摘要： A method is described for imaging an organ in a human or animal body via a computed tomography system having an X-ray radiation source which rotates around the body along a circumferential ring. In at least one embodiment, the circumferential ring in each case is fixed in one position for recording of an image data segment on one slice plane during one revolution of the X-ray radiation source relative to the body, and the X-ray radiation source is triggered by a cycle signal which represents a movement cycle of the organ and is activated for a limited measurement time interval. In at least one embodiment, the circumferential ring is moved sequentially to further positions relative to the body between each of the recordings, in order to record image data on further slice planes. In at least one embodiment, the timing and duration of the measurement time interval for an image data segment to be recorded are dynamically matched to a structure of the cycle signal. Furthermore, in at least one embodiment, a control device for a computed tomography system and/or a computed tomography system having a control device such as this are described.

摘要翻译： 描述了一种用于通过具有沿着圆周环围绕身体旋转的X射线辐射源的计算机断层摄影系统对人体或动物体内的器官进行成像的方法。 在至少一个实施例中，每个情况下的圆周环固定在一个位置，用于在X射线辐射源相对于身体旋转一周期间在一个切片平面上记录图像数据段，并且X射线辐射源 由表示器官的移动周期的周期信号触发，并在有限的测量时间间隔内被激活。 在至少一个实施例中，为了将图像数据记录在另外的切片平面上，圆周环顺序移动到相对于身体在每个记录之间的更多位置。 在至少一个实施例中，要记录的图像数据段的测量时间间隔的定时和持续时间与循环信号的结构动态匹配。 此外，在至少一个实施例中，描述了具有诸如此类的控制装置的计算机断层摄影系统和/或计算机断层摄影系统的控制装置。

公开(公告)号：US20100054569A1

公开(公告)日：2010-03-04

申请号：US12585023

申请日：2009-09-01

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： G06K9/00

CPC分类号： A61B6/4014 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/4441 ,  A61B6/466 ,  A61B6/482 ,  A61B6/5258 ,  A61B6/541 ,  G06T11/005

摘要： A method is disclosed for creating computed tomography recordings of a patient with metallic components. In at least one embodiment, the method includes scanning the patient by use of an x-ray tube detector system, with at least one sinogram being compiled; determining the detector signal data, which was attenuated by the metallic components in the patient; deleting the detector signal data, which was influenced by metallic components; determining the beam tracks in the sinogram at least of the volume elements, which are struck by beams which are attenuated by the metallic components and which cross the beam track of the deleted detector signal data in the sonogram; determining a minimal measurement value on each beam track respectively; adding together the minimal measurement values of the beam tracks to obtain the measurement points of the deleted detector signal data crossed by these beam tracks in the sonogram; and using this at least one sinogram determined in this manner to reconstruct computed tomography recordings of the patient without a metallic component, and displaying the reconstructed computed tomography recordings of the patient with metallic components.

摘要翻译： 公开了一种用于创建具有金属部件的患者的计算机断层摄影记录的方法。 在至少一个实施例中，该方法包括使用X射线管检测器系统对患者进行扫描，其中至少一个正弦图被编译; 确定由患者中的金属部件衰减的检测器信号数据; 删除受金属部件影响的检测器信号数据; 确定正弦图中的至少一个体积元素的光束轨迹，这些光束被由金属部件衰减并且与超声波图中被删除的检测器信号数据的光束轨迹交叉的光束撞击; 分别确定每个光束轨道上的最小测量值; 将波束轨迹的最小测量值相加在一起，以获得在超声波图中被这些波束轨迹交叉的被删除检测器信号数据的测量点; 并且使用这种以这种方式确定的至少一个正弦图来重建没有金属部件的患者的计算机断层摄影记录，并且用金属部件显示患者的重建计算机断层摄影记录。