公开(公告)号：US09107591B2

公开(公告)日：2015-08-18

申请号：US13632217

申请日：2012-10-01

Applicant: Shlomo Gotman ,  Udo Van Stevendaal ,  Peter Forthmann ,  Holger Schmitt

Inventor： Shlomo Gotman ,  Udo Van Stevendaal ,  Peter Forthmann ,  Holger Schmitt

IPC: A61B6/03 ,  H05G1/34 ,  A61B6/00 ,  A61B6/12

CPC classification number: A61B6/032 ,  A61B6/12 ,  A61B6/466 ,  A61B6/488 ,  A61B6/542 ,  A61B6/545 ,  A61B6/56 ,  H05G1/34

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08693621B2

公开(公告)日：2014-04-08

申请号：US12990278

申请日：2009-04-30

Applicant: Axel Thran ,  Claas Bontus ,  Peter Forthmann ,  Roland Proksa ,  Ronald B. Sharpless ,  Dominic J. Heuscher ,  Felix Peeters ,  Johannes Bathazar Maria Soetens

Inventor： Axel Thran ,  Claas Bontus ,  Peter Forthmann ,  Roland Proksa ,  Ronald B. Sharpless ,  Dominic J. Heuscher ,  Felix Peeters ,  Johannes Bathazar Maria Soetens

IPC: A61B6/03

CPC classification number: A61B6/4447 ,  A61B6/06 ,  A61B6/4021

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130279778A1

公开(公告)日：2013-10-24

申请号：US13978166

申请日：2012-01-04

Applicant: Peter Forthmann ,  Thomas Koehler

Inventor： Peter Forthmann ,  Thomas Koehler

IPC: G06T11/00

CPC classification number: G06T11/006 ,  G06T2211/416 ,  G06T2211/424

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110116598A1

公开(公告)日：2011-05-19

申请号：US13054103

申请日：2009-07-14

Applicant: Schlomo Gotman ,  Udo Van Stevendaal ,  Peter Forthmann ,  Holger Schmitt

Inventor： Schlomo Gotman ,  Udo Van Stevendaal ,  Peter Forthmann ,  Holger Schmitt

IPC: G01N23/04

CPC classification number: A61B6/032 ,  A61B6/12 ,  A61B6/466 ,  A61B6/488 ,  A61B6/542 ,  A61B6/545 ,  A61B6/56 ,  H05G1/34

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07782997B2

公开(公告)日：2010-08-24

申请号：US11994700

申请日：2006-07-04

Applicant: Thomas Koehler ,  Peter Forthmann

Inventor： Thomas Koehler ,  Peter Forthmann

IPC: A61B6/00

CPC classification number: G06T11/006 ,  A61B6/027 ,  G06T2211/432

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070140410A1

公开(公告)日：2007-06-21

申请号：US10575584

申请日：2004-10-05

Applicant: Udo Van Stevendaal ,  Claas Bontus ,  Peter Forthmann

Inventor： Udo Van Stevendaal ,  Claas Bontus ,  Peter Forthmann

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

CPC classification number: G06T11/006 ,  A61B6/027 ,  G06T2211/416 ,  Y10S378/901

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6098561A

公开(公告)日：2000-08-08

申请号：US136155

申请日：1998-08-18

Applicant: Peter Forthmann

Inventor： Peter Forthmann

IPC: B63H25/04

CPC classification number: B63H25/04

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140128721A1

公开(公告)日：2014-05-08

申请号：US14123535

申请日：2012-06-06

Applicant: Peter Forthmann ,  Thomas Erik Amthor ,  Sascha Krueger ,  Michael Harald Kuhn

Inventor： Peter Forthmann ,  Thomas Erik Amthor ,  Sascha Krueger ,  Michael Harald Kuhn

IPC: A61B5/11 ,  G01R33/48 ,  A61B5/00

CPC classification number: A61B5/1128 ,  A61B5/0082 ,  A61B5/055 ,  A61B5/1077 ,  A61B5/113 ,  A61B5/6804 ,  A61B5/6823 ,  A61B5/7278 ,  A61B6/4417 ,  A61B6/527 ,  A61B8/5276 ,  A61B2562/0266 ,  G01R33/28 ,  G01R33/34084 ,  G01R33/3415 ,  G01R33/4808 ,  G01R33/56509 ,  G01R33/5673

Abstract: A medical imaging system comprises an image data acquisition module to acquire imaging data and a motion detection module to acquire motion information. A reconstruction module reconstructs image datasets from the imaging data and with use of the motion information to correct for motion. The motion detection module is provided with a shape-sensing photonic fibre system to provide a photonic output representative of the spatial shape of the photonic fibre and an arithmetic unit to compute the motion information on the basis of the photonic output.

Abstract translation: 医疗成像系统包括：图像数据获取模块，用于获取成像数据;以及运动检测模块，用于获取运动信息。 重建模块从成像数据中重建图像数据集，并利用运动信息来校正运动。 运动检测模块设置有形状感测光子纤维系统，以提供表示光子纤维的空间形状的光子输出和运算单元，以基于光子输出来计算运动信息。

公开(公告)号：US08401144B2

公开(公告)日：2013-03-19

申请号：US12535231

申请日：2009-08-04

Applicant: Peter Forthmann ,  Axel Thran ,  Claas Bontus ,  Roland Proksa

Inventor： Peter Forthmann ,  Axel Thran ,  Claas Bontus ,  Roland Proksa

IPC: G01N23/083 ,  H05G1/60

CPC classification number: A61B6/032 ,  A61B6/027 ,  A61B6/488 ,  G06T5/50 ,  G06T11/005 ,  G06T2207/10072 ,  G06T2211/432

Abstract: A scanning method and apparatus useful for correcting artifacts which may appear in a primary short circular CT scan are provided. A secondary helical scan performed on a stationary subject, or a secondary circular scan, may be used to correct for artifacts. The secondary scan may be performed with a smaller radiation dosage than the primary circular CT scan.

Abstract translation: 提供了可用于校正可能出现在初级短圆形CT扫描中的伪影的扫描方法和装置。 可以使用在静止对象上进行的辅助螺旋扫描或二次循环扫描来校正伪像。 次扫描可以以比初级圆形CT扫描更小的辐射剂量进行。

公开(公告)号：US08379791B2

公开(公告)日：2013-02-19

申请号：US13120660

申请日：2009-10-05

Applicant: Peter Forthmann ,  Thomas Koehler ,  Udo Van Stevendaal ,  Matthias Bertram ,  Steffen Wiesner ,  Colas Schretter

Inventor： Peter Forthmann ,  Thomas Koehler ,  Udo Van Stevendaal ,  Matthias Bertram ,  Steffen Wiesner ,  Colas Schretter

IPC: A61B6/00

CPC classification number: A61B6/032 ,  A61B5/107 ,  A61B6/027

Abstract: A method and apparatus are provided to improve CT image acquisition using a displaced acquisition geometry. A CT apparatus may be used having a source (102) and a detector (104) transversely displaced from a center (114) of a field of view (118) during acquisition of the projection data. The amount of transverse displacement may be determined based on the size of the object (108). The source and the detector may be adjusted to vary the size of the transverse field of view. The first data set acquired by the detector may be reconstructed and used to simulate missing projection data that could not be acquired by the detector at each projection angle. The measured projection data and the simulated projection data may be used to obtain a second data set. The second data set may be compared to the first data set to produce a corrected data set.

Abstract translation: 提供了一种方法和装置，用于改善使用位移采集几何形状的CT图像采集。 可以使用CT装置，在获取投影数据期间具有从视场（118）的中心（114）横向移位的源（102）和检测器（104）。 可以基于物体（108）的尺寸来确定横向位移量。 源和检测器可以被调节以改变横向视场的大小。 由检测器获取的第一数据集可以被重构并用于模拟在每个投影角度不能由检测器获取的丢失的投影数据。 所测量的投影数据和模拟投影数据可用于获得第二数据集。 可以将第二数据集与第一数据集进行比较以产生校正数据集。