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1. 发明授权

US09107591B2 Interventional imaging and data processing 有权
标题翻译：介入成像和数据处理
公开(公告)号：US09107591B2
公开(公告)日：2015-08-18
申请号：US13632217
申请日：2012-10-01
申请人： Shlomo Gotman , Udo Van Stevendaal , Peter Forthmann , Holger Schmitt
发明人： Shlomo Gotman , Udo Van Stevendaal , Peter Forthmann , Holger Schmitt
IPC分类号： A61B6/03 , H05G1/34 , A61B6/00 , A61B6/12
CPC分类号： A61B6/032 , A61B6/12 , A61B6/466 , A61B6/488 , A61B6/542 , A61B6/545 , A61B6/56 , H05G1/34
摘要： An imaging system includes a radiation source that emits radiation that traverses an examination region. A controller activates the radiation source to emit radiation and deactivates the radiation source to stop radiation emission. The controller selectively activates the radiation source to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system that manipulates and navigates through the data set.
摘要翻译：成像系统包括发射穿过检查区域的辐射的辐射源。控制器激活辐射源发射辐射并使辐射源停用以停止辐射。控制器选择性地激活辐射源以以一个或多个预定角度发射辐射。在另一个实施例中，成像系统包括基于图像数据生成被扫描对象的感兴趣对象的虚拟三维图像的数据处理部件。在另一个实施例中，成像系统与数据处理和打包部件通信，该组件基于体积图像数据生成至少二维或三维数据集，并将数据集打包在提供给远程系统的对象中它操纵和浏览数据集。

2. 发明授权

US08693621B2 Source and/or detector positioning system 有权
标题翻译：源和/或探测器定位系统
公开(公告)号：US08693621B2
公开(公告)日：2014-04-08
申请号：US12990278
申请日：2009-04-30
申请人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
发明人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
IPC分类号： A61B6/03
CPC分类号： A61B6/4447 , A61B6/06 , A61B6/4021
摘要： A medical imaging system includes a generally stationary gantry (102) and a rotating gantry (106), rotatably supported by the generally stationary gantry (102), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source (112) that emits a radiation beam that traverses the examination region. The radiation source (112) is moveably affixed to the rotating gantry (106) so as to translate in a direction of the longitudinal axis with respect to the rotating gantry (106) while scanning a subject in the examination region. The medical imaging system further includes a detector array (120) that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array (120) is moveably affixed to the rotating gantry (106) so as to move in coordination with the radiation source (112) while scanning the subject in the examination region.
摘要翻译：医疗成像系统包括大致固定的机架（102）和旋转支架（106），旋转机架（106）由大体上固定的机架（102）可旋转地支撑，围绕检查区域围绕纵向轴线旋转。医疗成像系统还包括发射穿过检查区域的辐射束的辐射源（112）。辐射源（112）可移动地固定到旋转机架（106）上，以便在扫描检查区域中的被检体的同时相对于旋转台架（106）在纵向轴线的方向上平移。医疗成像系统还包括检测器阵列（120），其检测穿过检查区域的辐射束并产生指示其的信号。检测器阵列（120）可移动地固定到旋转机架（106），以在扫描检查区域中的对象时与辐射源（112）协调地移动。

3. 发明申请

US20130279778A1 IMAGING SYSTEM FOR IMAGING AN OBJECT 有权
标题翻译：用于成像对象的成像系统
公开(公告)号：US20130279778A1
公开(公告)日：2013-10-24
申请号：US13978166
申请日：2012-01-04
申请人： Peter Forthmann , Thomas Koehler
发明人： Peter Forthmann , Thomas Koehler
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , G06T2211/416 , G06T2211/424
摘要： The invention relates to an imaging system for imaging an object. Projection data of the object are acquired by using a radiation source emitting primary radiation (14) from a primary focal spot (15) and unwanted secondary radiation (16) from secondary focal spots (17). A first image of the object is reconstructed from the acquired projection data, a forward projection of the secondary radiation through the first image is simulated for generating secondary projection data, and a second image is generated based on the acquired projection data and the secondary projection data. Since the secondary projection data, which can generally cause image artifacts, are determined, the reconstruction unit can consider these unwanted secondary projection data while reconstructing the second image, in order to reduce the influence of the secondary projection data on the reconstructed second image, thereby improving the image quality.
摘要翻译：本发明涉及一种用于对物体成像的成像系统。通过使用从主焦点（15）发射主要辐射（14）的辐射源和来自次焦点（17）的不期望的次级辐射（16））来获取对象的投影数据。从获取的投影数据重建物体的第一图像，模拟通过第一图像的次级辐射的向前投影用于产生二次投影数据，并且基于所获取的投影数据和二次投影数据生成第二图像。由于确定了通常可以引起图像伪影的二次投影数据，所以重建单元可以在重构第二图像的同时考虑这些不需要的二次投影数据，以便减少二次投影数据对重构的第二图像的影响，由此提高图像质量。

4. 发明申请

US20110116598A1 INTERVENTIONAL IMAGING AND DATA PROCESSING 有权
标题翻译：传统成像和数据处理
公开(公告)号：US20110116598A1
公开(公告)日：2011-05-19
申请号：US13054103
申请日：2009-07-14
申请人： Schlomo Gotman , Udo Van Stevendaal , Peter Forthmann , Holger Schmitt
发明人： Schlomo Gotman , Udo Van Stevendaal , Peter Forthmann , Holger Schmitt
IPC分类号： G01N23/04
CPC分类号： A61B6/032 , A61B6/12 , A61B6/466 , A61B6/488 , A61B6/542 , A61B6/545 , A61B6/56 , H05G1/34
摘要： An imaging system includes a radiation source (110) that emits radiation that traverses an examination region. A controller (116) activates the radiation source (110) to emit radiation and deactivates the radiation source (110) to stop radiation emission. The controller (116) selectively activates the radiation source (110) to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component (124) that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component (128) that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system (132) that manipulates and navigates through the data set.
摘要翻译：成像系统包括发射穿过检查区域的辐射的辐射源（110）。控制器（116）激活辐射源（110）以发射辐射并使辐射源（110）停用以停止辐射发射。控制器（116）选择性地激活辐射源（110）以以一个或多个预定角度发射辐射。在另一个实施例中，成像系统包括基于图像数据生成被扫描对象的感兴趣对象的虚拟三维图像的数据处理组件（124）。在另一个实施例中，成像系统与数据操作和打包组件（128）通信，数据操纵和打包组件（128）基于体积图像数据生成至少二维或三维数据集，并将数据集打包在提供给远程系统（132），其操纵和导航数据集。

5. 发明授权

US07782997B2 Reconstruction algorithm for object point outside the scan-field-of-view 有权
标题翻译：对象点的重建算法在扫描视野外
公开(公告)号：US07782997B2
公开(公告)日：2010-08-24
申请号：US11994700
申请日：2006-07-04
申请人： Thomas Koehler , Peter Forthmann
发明人： Thomas Koehler , Peter Forthmann
IPC分类号： A61B6/00
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/432
摘要： CT scanners have a certain scan-field-of-view defined by the fan-angle of the system. According to an exemplary embodiment of the present invention, object points outside the scan-field-of-view may be reconstructed on the basis of a system of linear equations which may be solved iteratively and with reasonable effort. Therefore, explicit regularization techniques may be applied to recover the unknown object function.
摘要翻译： CT扫描仪具有由系统的扇角定义的特定扫描视场。根据本发明的示例性实施例，可以基于可以以合理的努力迭代地解决的线性方程式的系统来重构扫描视场外的物点。因此，可以应用明确的正则化技术来恢复未知对象的功能。

6. 发明申请

US20070140410A1 Coherent-scatter computed tomography 失效
标题翻译：相干散射计算机断层扫描
公开(公告)号：US20070140410A1
公开(公告)日：2007-06-21
申请号：US10575584
申请日：2004-10-05
申请人： Udo Van Stevendaal , Claas Bontus , Peter Forthmann
发明人： Udo Van Stevendaal , Claas Bontus , Peter Forthmann
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/416 , Y10S378/901
摘要： Known reconstruction techniques from coherent scattered x-rays apply non-exact reconstruction techniques. According to the present invention, a relatively wide spectrum of wave-vector transfers q of the scattered x-ray photons is acquired. The projection data is interpreted as line integrals in the x y-q space and the projection data is resorted to correspond to an acquisition along any source trajectory. Due to this, an exact helical reconstruction algorithms may be applied and redundant data may be used to obtain a better image quality.
摘要翻译：来自相干散射X射线的已知重建技术应用非精确重建技术。根据本发明，获得了散射的x射线光子的相对宽的波矢量传输q。投影数据被解释为x y-q空间中的线积分，并且投影数据被用来对应于沿着任何源轨迹的获取。因此，可以应用精确的螺旋重建算法，并且可以使用冗余数据来获得更好的图像质量。

7. 发明授权

US6098561A Self-steering system for boats 失效
标题翻译：自行车系统
公开(公告)号：US6098561A
公开(公告)日：2000-08-08
申请号：US136155
申请日：1998-08-18
申请人： Peter Forthmann
发明人： Peter Forthmann
IPC分类号： B63H25/04
CPC分类号： B63H25/04
摘要： A steering system for a boat includes an auxiliary rudder which is rotatable to effect changes in course of the boat. A servo-pendulum rudder is rotatable by a positioning device. When the servo-pendulum rudder is rotated, it is pivotal transversely to a keel line of the boat by water flowing past the boat. A drive connection is provided between the servo-pendulum rudder and the auxiliary rudder. The drive connection includes a drive member and a driven member. One of the driving and driven members is pivotal between an engaged condition in which the drive connection is effective to transmit force between the pendulum rudder and the auxiliary rudder and disengaged condition in which the drive connection is ineffective to transmit force. The drive and driven members may be provided with teeth which are disposed in meshing engagement when the one of the driving and driven members is in the engaged condition.
摘要翻译：用于船的转向系统包括辅助方向舵，其可旋转以实现船的过程中的改变。伺服摆舵由定位装置旋转。当伺服摆式方向舵旋转时，水通过船只流动，横向于船的龙骨线枢转。在伺服摆舵和辅助舵之间提供驱动连接。驱动连接包括驱动构件和从动构件。驱动和从动构件中的一个在其中驱动连接有效地在摆舵和辅助舵之间传递力的接合状态和驱动连接无效传递力的脱离状态之间枢转。驱动和从动构件可以设置有当驱动构件和被驱动构件中的一个处于接合状态时以啮合形式设置的齿。

8. 发明授权

US08666020B2 Method and apparatus to filter X-ray beams generated using a CT apparatus with displaced geometry 有权
标题翻译：过滤使用具有移位几何形状的CT装置产生的X射线束的方法和装置
公开(公告)号：US08666020B2
公开(公告)日：2014-03-04
申请号：US13144167
申请日：2009-12-09
申请人： Holger Schmitt , Peter Forthmann , Udo Van Stevendaal
发明人： Holger Schmitt , Peter Forthmann , Udo Van Stevendaal
IPC分类号： A61B6/03
CPC分类号： A61B6/587 , A61B6/032 , A61B6/4035 , A61B6/508 , G21K1/10
摘要： A method and apparatus are provided to filter x-ray beams generated using a CT apparatus or other x-ray based system with displaced acquisition geometry. A CT apparatus may be used having a source (102), a detector (104) transversely displaced from a center (114) of a field of view (118) during acquisition of the projection data, and a filter (146). The filter may absorb at least a portion of overlapping radiation emitted by the source at opposing angular positions. The amount of transverse displacement may be determined for a desired field of view configuration and amount of overlapping radiation. The detector may be adjusted to correspond to the amount of determined transverse displacement. The size and location of the filter may be determined based on the amount of overlapping radiation. The filter may be adjusted to correspond to the determined size and location of the filter.
摘要翻译：提供了一种方法和装置，用于过滤使用CT装置产生的X射线束或其他基于X射线的取向几何形状的系统。可以使用CT装置，其具有源（102），在获取投影数据期间从视场（118）的中心（114）横向移位的检测器（104）和过滤器（146）。过滤器可以吸收源在相对的角位置处发射的重叠辐射的至少一部分。可以针对期望的视场配置和重叠辐射量来确定横向位移的量。检测器可以被调节以对应于确定的横向位移的量。滤波器的尺寸和位置可以基于重叠辐射的量来确定。滤波器可以被调节以对应于所确定的滤波器的尺寸和位置。

9. 发明授权

US08442184B2 Spectral CT 有权
标题翻译：光谱CT
公开(公告)号：US08442184B2
公开(公告)日：2013-05-14
申请号：US12996985
申请日：2009-06-01
申请人： Peter Forthmann , Udo Van Stevendaal , Ewald Roessl , Michael Grass , Roland Proksa , Jens-Peter Schlomka
发明人： Peter Forthmann , Udo Van Stevendaal , Ewald Roessl , Michael Grass , Roland Proksa , Jens-Peter Schlomka
IPC分类号： A61B6/00
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4014 , A61B6/4035 , A61B6/4042 , A61B6/4241 , A61B6/482
摘要： An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, D1, D2, D3) that detects radiation traversing the examination region. The energy-resolving detector array (116, D1, D2, D3) resolves the detected radiation over at least two different energy ranges and produces energy-resolved output signals as a function of both emission energy spectrum and energy range. The system further includes a reconstructor (126) that performs a spectral reconstruction of the energy-resolved output signals. In another embodiment, the detector array (116) includes a photon-counting detector array (116).
摘要翻译：成像系统包括围绕检查区域旋转并且发射穿过检查区域的辐射的辐射源（106，T1，T2，T3）。辐射源（106，T1，T2，T3）发射具有在成像过程期间在至少两个不同能量谱之间选择性交替切换的能谱的辐射。该系统还包括检测穿过检查区域的辐射的能量分辨检测器阵列（116，D1，D2，D3）。能量分辨检测器阵列（116，D1，D2，D3）通过至少两个不同的能量范围来解析检测到的辐射，并且产生作为发射能量谱和能量范围的函数的能量分辨的输出信号。该系统还包括执行能量分辨输出信号的频谱重建的重建器（126）。在另一个实施例中，检测器阵列（116）包括光子计数检测器阵列（116）。

10. 发明授权

US08135197B2 Automatic adaptive soft tissue thresholding for two-pass CT cone-beam artifact reduction 有权
标题翻译：自动适应性软组织阈值二次CT锥束伪影减少
公开(公告)号：US08135197B2
公开(公告)日：2012-03-13
申请号：US12090654
申请日：2006-10-06
申请人： Peter Forthmann , Michael Grass , Roland Proksa
发明人： Peter Forthmann , Michael Grass , Roland Proksa
IPC分类号： A61B6/03
CPC分类号： G06T11/008 , Y10S378/901
摘要： Since the soft tissue levels in an image usually comprise a variety of values between air and bone boundaries, it may not be obvious a priori what threshold value applies. According to an exemplary embodiment of the present invention, an examination apparatus is provided which is adapted for determining the optimal weight for subtraction of a soft tissue correction image without performing a multitude of forward and backward projections. This may be provided determining a roughness function based on a plurality of subtractions of the soft tissue streak image, each subtraction corresponding to a different weighting of the streak image.
摘要翻译：由于图像中的软组织水平通常包含空气和骨骼边界之间的各种值，所以事先显示出什么阈值可能并不明显。根据本发明的示例性实施例，提供一种检查装置，其适于确定用于减去软组织校正图像的最佳权重，而不执行大量向前和向后的投影。可以提供这样来确定基于软组织条纹图像的多个减法的粗糙度函数，每个减法对应于条纹图像的不同加权。

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