公开(公告)号：US20060086905A1

公开(公告)日：2006-04-27

申请号：US11253326

申请日：2005-10-19

申请人： Sven Fritzler ,  Bjorn Heismann ,  Jorg Pfeiffer

发明人： Sven Fritzler ,  Bjorn Heismann ,  Jorg Pfeiffer

IPC分类号： G01T1/164

CPC分类号： G01T1/1615 ,  G01T1/2985

摘要： A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.

摘要翻译： 用于产生检查对象（优选患者）的断层图像切片图像的组合透射/发射断层摄影装置具有由至少一个辐射发射装置和/或至少一个辐射发射装置和在运行中旋转的固定定子和转子组成的支撑结构， 安装在转子上的至少一个放射线检测装置。 所述至少一个辐射发射装置和所述至少一个辐射检测装置是主要部件，并且所述装置具有用于一个或多个主要部件的至少一个相关联的供应部件。 在转子中，所有主要部件布置在一个旋转平面中，并且所有的供给部件布置在旋转平面的外侧。

公开(公告)号：US20060054828A1

公开(公告)日：2006-03-16

申请号：US11222875

申请日：2005-09-09

申请人： Sven Fritzler ,  Bjorn Heismann

发明人： Sven Fritzler ,  Bjorn Heismann

IPC分类号： G01T1/24

CPC分类号： G01T1/2018 ,  G01T1/2928

摘要： In a detector arrangement for a medical diagnosis apparatus as well as a medical imaging diagnostic method, radiation quanta striking a detector are detected and evaluated with spatial resolution. The use of collimators is thereby omitted, such that radiation quanta that strike at a non-perpendicular angle to the detector are also evaluated. For spatial resolution of the origin of the radiation quantum, the spatial distribution of sensor elements of the detector that emit a signal upon incidence of a radiation quantum is evaluated. A higher efficiency of the radiation evaluation is enabled and, particularly in nuclear medical diagnostic methods, the radiation exposure of the patient can be distinctly reduced.

摘要翻译： 在用于医疗诊断装置的检测器装置以及医学成像诊断方法中，利用空间分辨率来检测和评估检测器的辐射量子。 因此省略了使用准直器，从而也评估了与检测器成非正交角度的辐射量子。 对于辐射量子的原点的空间分辨率，评估在辐射量子入射时发射信号的检测器的传感器元件的空间分布。 能够实现更高的辐射评估效率，特别是在核医学诊断方法中，可以明显降低患者的放射线暴露。

公开(公告)号：US20090257549A1

公开(公告)日：2009-10-15

申请号：US12385498

申请日：2009-04-09

申请人： Bjorn Heismann

发明人： Bjorn Heismann

IPC分类号： H05G1/60 ,  G06K9/00

CPC分类号： G06T11/005 ,  A61B6/507 ,  G06T2211/408

摘要： A method and CT system are disclosed for preparing reconstructed CT image data records. In at least one embodiment of the method, an initial material distribution of an examination object is determined from CT data records determined from among at least two different spectral weightings with local energy-determined attenuation values, and local measurement-spectrum-dependent weighting functions are determined using this material distribution, enabling local measurement-spectrum-dependent attenuation functions to be calculated, and the distribution of local reference materials to be determined, with the help of plausibility considerations, from a list of reference materials over at least one specified region of interest in the examination object on the basis of previously calculated local measurement-spectrum-dependent attenuation functions.

摘要翻译： 公开了用于制备重建的CT图像数据记录的方法和CT系统。 在该方法的至少一个实施例中，从具有局部能量确定的衰减值的至少两个不同频谱权重中确定的CT数据记录确定检查对象的初始材料分布，并且本地测量频谱相关加权函数 使用此材料分配确定，可以计算本地测量频谱相关的衰减函数，以及在合理性考虑的帮助下确定的局部参考材料的分布，从至少一个指定区域的参考材料列表中 根据先前计算的局部测量频谱相关衰减函数对检查对象的兴趣。

公开(公告)号：US20070284535A1

公开(公告)日：2007-12-13

申请号：US11802891

申请日：2007-05-25

申请人： Bjorn Heismann ,  Gunter Muller

发明人： Bjorn Heismann ,  Gunter Muller

IPC分类号： G01T1/24

CPC分类号： A61B6/4488 ,  A61B6/035

摘要： A cooling device is disclosed for a radiation detector including a detector surface and a plurality of collimator plates arranged in the direction of X-radiation before the detector surface. In order to produce the cooling device of at least one embodiment, the collimator plates are designed and/or the cooling device includes a ventilation device which is designed, so that the space between the collimator plates is at least partially exposed to a cooling air flow in order to cool the radiation detector. A corresponding method for cooling an X-radiation detector is furthermore described in at least one additional embodiment.

摘要翻译： 公开了一种用于辐射检测器的冷却装置，其包括检测器表面和在检测器表面之前沿X射线方向排列的多个准直器板。 为了制造至少一个实施例的冷却装置，设计准直板和/或冷却装置包括设计的通风装置，使得准直板之间的空间至少部分地暴露于冷却空气流 以便冷却辐射探测器。 在至少一个附加实施例中进一步描述了用于冷却X射线探测器的相应方法。

公开(公告)号：US20070158575A1

公开(公告)日：2007-07-12

申请号：US11641872

申请日：2006-12-20

申请人： Bjorn Heismann ,  Helmut Winkelmann

发明人： Bjorn Heismann ,  Helmut Winkelmann

IPC分类号： G01T1/24

CPC分类号： G01K7/01 ,  G01T1/2018 ,  G01T1/244 ,  H01L23/34 ,  H01L27/14659 ,  H01L27/14663 ,  H01L2924/0002 ,  H01L2924/00

摘要： A circuit is disclosed, integrated in a semiconductor material, for measuring signals of a sensor assigned to the integrated circuit. In at least one embodiment, the circuit includes an active component; a temperature sensor; and a circuit to control the temperature of the semiconductor material. The active component is provided to treat the measuring signals produced by the sensor and the active component is drivable by the circuit to control the temperature in such a way that the temperature of the semiconductor material is variable. Further, the circuit includes at least one of a PI and PID controller to control the temperature. A method for controlling the temperature of a semiconductor material that has an integrated circuit is further disclosed.

摘要翻译： 公开了集成在半导体材料中的电路，用于测量分配给集成电路的传感器的信号。 在至少一个实施例中，电路包括有源部件; 温度传感器; 以及控制半导体材料的温度的电路。 提供有源部件以处理由传感器产生的测量信号，并且有源部件可被电路驱动，以使半导体材料的温度可变地控制温度。 此外，该电路包括用于控制温度的PI和PID控制器中的至少一个。 还公开了一种用于控制具有集成电路的半导体材料的温度的方法。

公开(公告)号：US20090050818A1

公开(公告)日：2009-02-26

申请号：US12153052

申请日：2008-05-13

申请人： Bjorn-Oliver Eversmann ,  Bjorn Heismann

发明人： Bjorn-Oliver Eversmann ,  Bjorn Heismann

IPC分类号： H01J47/02

CPC分类号： G01T1/247

摘要： A method is disclosed for determining individual quantum absorption events in a radiation converter which counts quanta. In at least one embodiment of the method, temporally continuous analog-to-digital conversion of electrical signals generated by a quantum absorption event to a digital signal is carried out first of all by the radiation converter. The digital signal is then processed to determine the number of quanta of the underlying quantum absorption event absorbed in the radiation converter.

摘要翻译： 公开了一种用于确定对量子进行计数的辐射转换器中的各种量子吸收事件的方法。 在该方法的至少一个实施例中，首先通过辐射转换器执行由量子吸收事件产生的电信号到数字信号的时间上连续的模数转换。 然后处理数字信号以确定在辐射转换器中吸收的潜在量子吸收事件的量子数。

公开(公告)号：US20060193428A1

公开(公告)日：2006-08-31

申请号：US11361251

申请日：2006-02-23

申请人： Bjorn Heismann

发明人： Bjorn Heismann

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

CPC分类号： A61B6/542 ,  A61B6/032

摘要： In a control device for a computed tomography apparatus and method for controlling a computer tomography apparatus, the control device acquires a number of temporally successive volume data sets of the same subject in order to detect a temporal variation of the measurement subject. During the acquisition of a further volume data set of the same measurement subject, using the x-ray radiation currently received by the receiver unit, the control device automatically establishes a correlation in real time between a stored, earlier volume data set of the same measurement subject and the volume data set to be directly acquired, and the control device controls the x-ray source such that the x-ray radiation used for the acquisition of the volume data set to be directly acquired exhibits an intensity and/or dose that is inversely dependent on the established correlation.

摘要翻译： 在用于计算机断层摄影装置的控制装置和用于控制计算机断层摄影装置的方法中，控制装置获取同一被摄体的多个时间上连续的体数据集，以便检测测量对象的时间变化。 在采集同一测量对象的另外的体积数据集的同时，使用由接收器单元当前接收的x射线辐射，控制装置在相同测量的存储的较早的体积数据集之间实时自动建立相关性 主体和体积数据被设置为直接获取，并且控制装置控制x射线源，使得用于获取直接获取的体数据集的x射线辐射表现出强度和/或剂量， 反向依赖于建立的相关性。

公开(公告)号：US20070183581A1

公开(公告)日：2007-08-09

申请号：US11700152

申请日：2007-01-31

申请人： Bjorn Heismann ,  Eckhard Hempel ,  Stefan Popescu

发明人： Bjorn Heismann ,  Eckhard Hempel ,  Stefan Popescu

IPC分类号： G03F1/00 ,  G21K1/00

CPC分类号： A61B6/06 ,  A61B6/00 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4092 ,  A61B6/4233 ,  A61B6/4266 ,  A61B6/4291 ,  A61B6/4441 ,  A61B6/484 ,  G03B42/02 ,  G21K2201/06 ,  G21K2207/005

摘要： A focus/detector system of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings. In at least one embodiment, the system includes a beam source, including a focus and a focus-side source grating, arranged in the beam path to generate a field of ray-wise coherent X-rays; and a grating/detector arrangement having a phase grating with grating lines arranged parallel to the source grating for generating an interference pattern and a detector having a multiplicity of detector elements arranged flat for measuring the radiation intensity behind the phase grating. Further, the detector elements are formed by a multiplicity of elongate detection strips, which are aligned parallel to the grating lines of the phase grating. Furthermore, at least one embodiment also relates to the use of this focus/detector system in an X-ray system for generating projective recordings or in C-arc equipment or a CT system, and/or to a method for generating projective and tomographic X-ray recordings of a subject.

摘要翻译： 公开了用于产生投影或层析相位对比记录的X射线装置的焦点/检测器系统。 在至少一个实施例中，系统包括布置在光束路径中以产生射线相干X射线场的束源，包括焦点和焦点侧源光栅; 以及具有相位光栅的光栅/检测器装置，其具有平行于源光栅布置的光栅线，用于产生干涉图案;以及检测器，具有平坦布置的多个检测器元件，用于测量相位光栅后面的辐射强度。 此外，检测器元件由多个细长的检测条形成，其平行于相位光栅的光栅线排列。 此外，至少一个实施例还涉及在X射线系统中用于产生投影记录或在C弧设备或CT系统中使用该焦点/检测器系统和/或用于产生投影和断层X的方法 录音的主题。

公开(公告)号：US20070064878A1

公开(公告)日：2007-03-22

申请号：US11522486

申请日：2006-09-18

申请人： Bjorn Heismann

发明人： Bjorn Heismann

IPC分类号： G21K1/00

CPC分类号： G21K1/025

摘要： An antiscatter grid is disclosed which is constructed from lamellas that are opaque to radiation. Further, a method is disclosed for producing such an antiscatter grid. The antiscatter grid includes a cell-like structure with radiation channels respectively surrounded laterally by the lamellas, the lamellas being arranged crossing over at least partially in such a way that at at least a few crossover sites at least one lamella respectively has a slot that is cut out laterally in a fashion substantially in the direction of radiation, in which another lamella is positively arranged. Owing to this shape and this arrangement for the lamellas, they support one another mutually such that they also form a dimensionally stable structure without additional means for holding them.

摘要翻译： 公开了一种由对辐射不透明的薄片构成的反散射网格。 此外，公开了一种用于制造这种反散射栅格的方法。 反散射栅格包括具有辐射通道的细胞样结构，辐射通道分别被薄片横向包围，薄片被布置成至少部分地跨越，使得在至少一个薄片处的至少几个交叉位置分别具有槽 以大致在辐射方向上的方式横向切割，其中另一个薄片被正确地布置。 由于这种形状和这种薄片的布置，它们彼此相互支撑，使得它们也形成尺寸稳定的结构，而没有用于保持它们的附加装置。

公开(公告)号：US20060269043A1

公开(公告)日：2006-11-30

申请号：US10549269

申请日：2004-03-02

申请人： Bjorn Heismann

发明人： Bjorn Heismann

IPC分类号： G01N23/04

CPC分类号： A61B6/481 ,  A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  A61B6/504 ,  A61B6/583

摘要： The invention relates to a method for the image-producing examination of an object to be examined, especially a patient (P). According to said method, a contrast agent (KM) is first administered to the object to be examined. At least two spatial distributions of x-ray attenuation values are determined, said values respectively representing the local x-ray attenuation coefficients (μ(x,y)) or a quantity (C) which is linearly dependent on the same. The two spatial distributions comprise at least one first attenuation value distribution (μ1(x,y)), the determination thereof being based on a first x-ray spectrum, and one second attenuation value distribution (μ2(x,y)), the determination thereof being based on a second x-ray spectrum which is different to the first x-ray spectrum. By evaluating the two attenuation value distributions, a spatial distribution of at least one predefined atomic number value (Z; Z1, Z2, . . . ) or a spatial distribution (Z(x,y)) of a non-predefined atomic number value in the object to be examined is determined, said spatial distribution containing information about the distribution of the administered contrast agent (KM) in the object to be examined. The spatial atomic number distribution is used to represent the contrast agent (KM) in the image.

摘要翻译： 本发明涉及一种用于对待检查对象，特别是患者（P）进行图像生成检查的方法。 根据所述方法，首先将对比剂（KM）施用于被检查物体。 确定x射线衰减值的至少两个空间分布，所述值分别表示局部x射线衰减系数（mu（x，y））或线性相关的数量（C）。 两个空间分布包括至少一个第一衰减值分布（mu1（x，y）），其确定是基于第一x射线谱和一个第二衰减值分布（mu2（x，y））， 其确定基于与第一x射线光谱不同的第二X射线光谱。 通过评估两个衰减值分布，确定非预定义原子数值的至少一个预定原子序数值（Z; Z1，Z2，...）或空间分布（Z（x，y））的空间分布 在确定被检查对象的情况下，所述空间分布包含关于被检查对象物中所施用的造影剂（KM）的分布的信息。 空间原子数分布用于表示图像中的造影剂（KM）。