公开(公告)号：US20100021033A1

公开(公告)日：2010-01-28

申请号：US12458760

申请日：2009-07-22

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： A61B6/481 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/482 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  G06T7/0016 ,  G06T7/215 ,  G06T2207/10081 ,  G06T2207/20056 ,  G06T2207/30048

摘要： A method is disclosed for differentiating and displaying moving and stationary heart regions of a patient in X-ray CT. In at least one embodiment, the method includes carrying-out circular or helical scanning of a patient in the region of his or her heart using an X-ray CT scanner including a detector with a multiplicity of detector elements, and storing at least one sinogram from a multiplicity of projection data from encircling projection directions; and reconstructing at least one tomographic display of the heart from the at least one sinogram and displaying the at least one reconstructed display of the heart. According to at least one embodiment of the invention, the projection data are Fourier transformed, filtered with respect to a predetermined frequency, inverse transformed, reconstructed, and output together with the tomographic display of the heart.

摘要翻译： 公开了一种用于在X射线CT中区分和显示患者的移动和静止心脏区域的方法。 在至少一个实施例中，该方法包括使用包括具有多个检测器元件的检测器的X射线CT扫描器对他或她心脏区域中的患者进行圆形或螺旋扫描，并且存储至少一个正弦图 来自环绕投影方向的多个投影数据; 以及从所述至少一个正弦图重构心脏的至少一个断层图像显示并且显示心脏的至少一个重建显示。 根据本发明的至少一个实施例，投影数据相对于预定频率进行傅里叶变换，滤波，与心脏的断层显像一起反向变换，重建和输出。

公开(公告)号：US20090129540A1

公开(公告)日：2009-05-21

申请号：US12289566

申请日：2008-10-30

申请人： Herbert Bruder ,  Rainer Raupach ,  Karl Stierstorfer

发明人： Herbert Bruder ,  Rainer Raupach ,  Karl Stierstorfer

IPC分类号： H05G1/60

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：US20070086561A1

公开(公告)日：2007-04-19

申请号：US11543836

申请日：2006-10-06

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

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

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： G03B42/02 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/5282 ,  A61B6/583

摘要： A method for scattered radiation correction of a CT system, including at least two focus/detector systems operated angularly offset from one another, is disclosed. In the method, at at least one phantom, similar to the examined object at least in a subregion, for at least one of the focus/detector systems, the scattered radiation intensity occurring is determined in the detector of a focus/detector system during the operation of the at least one focus of at least one other focus/detector system. Further, the spatial distribution thereof is stored for a number of angles of rotation of the focus/detector systems. During scanning of the object, the scattered radiation intensities, determined with the aid of a similar phantom that originate from the at least one other focus/detector system, are subtracted from the measured intensities of the first focus/detector system while taking account of the spatial orientation of the focus/detector systems and the beam respectively considered. Finally, absorption values are calculated with the aid of the intensity values thus corrected, and CT pictures or CT volume data are thereby reconstructed.

摘要翻译： 公开了一种用于CT系统的散射辐射校正的方法，其包括彼此角度偏移地操作的至少两个焦点/检测器系统。 在该方法中，至少在至少一个子区域中的被检查对象的至少一个体模，对于焦点/检测器系统中的至少一个，在焦点/检测器系统的检测器期间确定发生的散射辐射强度 操作至少一个其它焦点/检测器系统的至少一个焦点。 此外，其空间分布被存储为聚焦/检测器系统的多个旋转角度。 在扫描对象期间，借助于来自至少一个其它焦点/检测器系统的类似幻影确定的散射辐射强度从所测量的第一焦点/检测器系统的强度中减去，同时考虑到 分别考虑了焦点/探测器系统和光束的空间取向。 最后，借助于如此校正的强度值来计算吸收值，由此重建CT图像或CT体积数据。

公开(公告)号：US08422625B2

公开(公告)日：2013-04-16

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： A61B6/03

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：US08379953B2

公开(公告)日：2013-02-19

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 ,  A61B6/00

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。

公开(公告)号：US08306295B2

公开(公告)日：2012-11-06

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 ,  A61B6/00

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：US20080165919A1

公开(公告)日：2008-07-10

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： A61B6/03

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：US20070032735A1

公开(公告)日：2007-02-08

申请号：US11498798

申请日：2006-08-04

申请人： Herbert Bruder ,  Rainer Raupach

发明人： Herbert Bruder ,  Rainer Raupach

IPC分类号： A61B5/04

CPC分类号： A61B6/032 ,  A61B5/0402 ,  A61B5/0452 ,  A61B6/4441 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541

摘要： In the course of an imaging method that is particularly suitable for creating an image data record of the heart and/or the blood vessels of a patient, a series of recording pulses, tuned to the cardiac rhythm, are derived from an ECG signal of the cardiac rhythm of the patient. The imaging is driven in a pulsed fashion from the series of recording pulses. In this case, an initial instant and a final instant of a future recording pulse are determined by taking account of at least one variability parameter characterizing the irregularity of the cardiac rhythm.

摘要翻译： 在特别适合于创建患者的心脏和/或血管的图像数据记录的成像方法的过程中，调整到心律的一系列记录脉冲是从心电图的ECG信号导出的 患者的心律。 成像以脉冲方式从一系列记录脉冲驱动。 在这种情况下，通过考虑表征心律不规则的至少一个变异性参数来确定未来记录脉冲的初始时刻和最终时刻。

公开(公告)号：US20120039518A1

公开(公告)日：2012-02-16

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： G06K9/40

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：US07856078B2

公开(公告)日：2010-12-21

申请号：US12153416

申请日：2008-05-19

申请人： Herbert Bruder ,  Rainer Raupach ,  Bernhard Schmidt

发明人： Herbert Bruder ,  Rainer Raupach ,  Bernhard Schmidt

IPC分类号： A61B6/00

CPC分类号： G06T11/005

摘要： A method is disclosed for generating computed tomography displays, in which with the aid of at least one X-ray source, an examination object is scanned in a rotationally circulating fashion with a measured dose rate dependent on the circulation angle, projection data are collected from a multiplicity of viewing angles, and at least similarly redundant projection data from angularly identical or angularly complementary projection angles with a different measured dose are interpolated with distance weighted relative to a projection value and are used for reconstruction. According to at least one embodiment of the invention, during the distance weighted interpolation of the at least similarly redundant projection data an additional noise optimizing weighting is carried out as a function of the noise present per projection value. Furthermore, an X-ray computed tomography system is disclosed for generating tomographic displays of an examination object with the aid of an arithmetic logic unit, including computer program code for evaluating detector data and carrying out a reconstruction, the arithmetic logic unit including program code that during operation executes at least one embodiment of the method.

摘要翻译： 公开了一种用于生成计算机断层摄影显示的方法，其中借助于至少一个X射线源，以具有取决于循环角的测量剂量率的旋转循环方式扫描检查对象，从 多个视角，以及与具有不同测量剂量的角度相同或角度互补的投影角度的至少相似的冗余投影数据以相对于投影值加权的距离进行内插，并用于重建。 根据本发明的至少一个实施例，在至少类似地冗余的投影数据的距离加权内插期间，作为每个投影值存在的噪声的函数执行附加噪声优化加权。 此外，公开了一种X射线计算机断层摄影系统，用于借助于包括用于评估检测器数据并执行重建的计算机程序代码的算术逻辑单元产生检查对象的断层图像显示，所述算术逻辑单元包括程序代码， 在操作期间执行该方法的至少一个实施例。