专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06178220B1 CT systems with oblique image planes 失效
标题翻译：具有倾斜图像平面的CT系统
公开(公告)号：US06178220B1
公开(公告)日：2001-01-23
申请号：US09319062
申请日：1999-10-18
申请人： David Freundlich , Alex Zaslavsky , David Ruimi
发明人： David Freundlich , Alex Zaslavsky , David Ruimi
IPC分类号： A61B603
CPC分类号： G06T11/003 , A61B6/027
摘要： A method for reconstructing one or more non-axial image slices in a CT scanner, comprising: acquiring X-ray attenuation data over an axial range; and processing the attenuation data to determine CT values at a plurality of points along one or more surface corresponding respectively to each one or more non-axial image slices, wherein processing the attenuation data comprises back-projecting the data directly to the plurality of points along each of the one or more surfaces.
摘要翻译：一种用于重构CT扫描器中的一个或多个非轴向图像切片的方法，包括：在轴向范围上获取X射线衰减数据; 以及处理所述衰减数据以确定沿着分别对应于每个一个或多个非轴向图像切片的一个或多个表面的多个点处的CT值，其中处理所述衰减数据包括将所述数据直接反向投影到所述多个点每个一个或多个表面。

2. 发明授权

US06243438B1 Multi-slice detector array 失效
标题翻译：多层检测器阵列
公开(公告)号：US06243438B1
公开(公告)日：2001-06-05
申请号：US09242079
申请日：1999-02-04
申请人： Ehud Nahaliel , Ehud Dafni , Andre Feldman , David Ruimi , David Freundlich
发明人： Ehud Nahaliel , Ehud Dafni , Andre Feldman , David Ruimi , David Freundlich
IPC分类号： G01N2300
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/5205 , G01N23/04 , G01T1/1647 , G01T1/2985
摘要： Apparatus for producing multiple image slice data responsive to incident radiation passing through an object. The apparatus includes a detector array having a plurality (p) of parallel rows of detector elements which receive such incident radiation and generate signals therefrom, each of which rows is characterized by a width measured prior to collimation in the direction perpendicular to a long dimension thereof; and signal processing circuitry which receives signals from the detector elements and which combines the signals in a first combination mode and in at least m additional combination modes. In the first combination mode, the circuitry forms a set of n groups of rows, each such group of rows having an effective group width substantially equal to the effective group width of each of the other groups in the set. In each of the m additional combination modes, the circuitry forms different sets of n groups of rows, each such set having a different effective group width common to all groups in the set.
摘要翻译：用于响应于穿过物体的入射辐射产生多个图像切片数据的装置。该装置包括具有多个（p）并行的检测器元件的检测器阵列的检测器阵列，其接收这种入射辐射并从其产生信号，其中每行的特征在于在垂直于其长尺寸的方向准直之前测量的宽度 ; 以及信号处理电路，其从检测器元件接收信号，并且以第一组合模式和至少m个附加组合模式组合信号。在第一组合模式中，电路形成一组n组行，每组这样的行具有基本上等于组中每个其他组的有效组宽度的有效组宽度。在m个附加组合模式中的每一个中，电路形成n组行的不同集合，每个这样的集合具有集合中所有组共同的不同的有效组宽度。

3. 发明授权

US07424090B2 Apparatus for acquisition of CT data with penumbra attenuation calibration 有权
标题翻译：用于采用半影衰减校准获取CT数据的装置
公开(公告)号：US07424090B2
公开(公告)日：2008-09-09
申请号：US11745765
申请日：2007-05-08
申请人： Jerome Stephen Arenson , David Ruimi , Oded Meirav , Robert Harry Armstrong
发明人： Jerome Stephen Arenson , David Ruimi , Oded Meirav , Robert Harry Armstrong
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/06 , A61B6/542 , G21K1/04
摘要： The present invention is a directed method and apparatus for collimating a radiation beam such that the full intensity of the radiation beam does not impinge detectors of a radiation detector assembly that are particularly susceptible to saturation or over-ranging. This collimation can be dynamically adjusted on a per view basis using empirical or scout scan data.
摘要翻译：本发明是一种用于准直辐射束的定向方法和装置，使得辐射束的全部强度不会影响辐射探测器组件的特别容易饱和或超范围的检测器。可以使用经验或侦察扫描数据在每个视图基础上动态调整此准直。

4. 发明授权

US07260170B2 Method and system of CT data correction 有权
公开(公告)号：US07260170B2
公开(公告)日：2007-08-21
申请号：US11627144
申请日：2007-01-25
申请人： Jerome Stephen Arenson , David Ruimi , Evgeny Drapkin , Dmitry Samsonov , Bruno K. B. De Man , Samit Kumar Basu
发明人： Jerome Stephen Arenson , David Ruimi , Evgeny Drapkin , Dmitry Samsonov , Bruno K. B. De Man , Samit Kumar Basu
IPC分类号： G01N23/00
CPC分类号： G01T1/1644 , A61B6/027 , A61B6/032 , A61B6/4241 , A61B6/482 , A61B6/583 , G01T1/1647 , G06T5/002 , G06T5/20 , G06T2207/10081 , G06T2207/30004 , G06T2207/30112 , Y10S378/901
摘要： An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a given data acquisition. The data acquisition technique recognizes that for a given subject size and position that pre-subject filtering and collimating of a radiation beam may be insufficient to completely prevent detector saturation. Therefore, the present invention includes implementation of a number of CT data correction techniques for correcting otherwise unusable data of a saturated CT detector. These data correction techniques include a nearest neighbor correction, off-centered phantom correction, off-centered synthetic data correction, scout data correction, planar radiogram correction, and a number of others. The invention is applicable with energy discriminating CT systems as well as with conventional CT systems and other multi-energy CT systems, such as dual kVp-based systems.

5. 发明授权

US06324246B1 Helical scanner with variably oriented scan axis 失效
标题翻译：具有可变方向扫描轴的螺旋扫描仪
公开(公告)号：US06324246B1
公开(公告)日：2001-11-27
申请号：US09367771
申请日：1999-11-22
申请人： David Ruimi
发明人： David Ruimi
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/027 , Y10S378/901
摘要： A method for reconstructing images of a subject in a variable-angle helical-scan CT scanner including an X-ray tube, a detector array, and a bed, the method comprising: angling the translation axis and the rotation axis at an acute angle relative to one another; rotating the X-ray tube about the rotation axis while translating the bed along the translation axis through a plane of rotation of the tube, whereby the X-ray tube describes a helical path relative to the subject; acquiring first and second views of the subject at the same effective rotational angle about the axis of rotation, said views comprising X-ray attenuation data received from elements of the array; producing a planar corrected image slice by interpolation of the data in different views, wherein the data is generated by non-corresponding elements in the different views; and repeating the above steps at respective positions at a plurality of rotational angles of the X-ray tube.
摘要翻译：一种用于重建包括X射线管，检测器阵列和床的可变角度螺旋扫描CT扫描仪中的被检体的图像的方法，所述方法包括：将平移轴和旋转轴以锐角相对角度彼此; 使所述X射线管绕所述旋转轴旋转，同时沿着所述平移轴平移所述床沿所述管的旋转平面，由此所述X射线管描述相对于所述对象的螺旋路径; 以相对于旋转轴线的相同有效旋转角度获取对象的第一和第二视图，所述视图包括从阵列的元件接收的X射线衰减数据; 通过不同视图中的数据的内插产生平面校正图像切片，其中数据由不同视图中的非对应元素生成; 并且在X射线管的多个旋转角度的各个位置重复上述步骤。

6. 发明授权

US08571172B2 CT cone beam scanner 有权
标题翻译： CT锥形束扫描仪
公开(公告)号：US08571172B2
公开(公告)日：2013-10-29
申请号：US12937290
申请日：2009-04-06
申请人： Ehud Dafni , Rafi Brada , David Ruimi
发明人： Ehud Dafni , Rafi Brada , David Ruimi
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4028
摘要： A CT scanner comprises at least one cone beam x-ray source assembly mounted on a gantry frame, the gantry frame rotatable about a rotation axis, the x-ray source assembly operable to emit a cone beam at an orientation with respect to the rotation axis, and a controller operable to adjust an orientation of the cone beam during a rotation cycle of the gantry, wherein the controller adjusts the orientation to radiate a substantially same volume of interest over the rotation cycle.
摘要翻译： CT扫描器包括安装在台架框架上的至少一个锥形束x射线源组件，所述台架可围绕旋转轴线旋转，所述X射线源组件可操作以相对于旋转轴线的取向发射锥形束以及控制器，其可操作以在所述台架的旋转周期期间调节所述锥形梁的取向，其中所述控制器调整所述取向以在所述旋转周期上辐射基本相同的感兴趣体积。

7. 发明授权

US07649974B2 Method and system for controlling an X-ray imaging system 有权
标题翻译：用于控制X射线成像系统的方法和系统
公开(公告)号：US07649974B2
公开(公告)日：2010-01-19
申请号：US10993705
申请日：2004-11-18
申请人： Jerome Stephen Arenson , David Ruimi , Oded Meirav , Robert Harry Armstrong
发明人： Jerome Stephen Arenson , David Ruimi , Oded Meirav , Robert Harry Armstrong
IPC分类号： H05G1/26 , G01N23/00
CPC分类号： A61B6/585 , A61B6/542 , A61B6/583
摘要： Methods and systems for controlling an X-ray imaging system. The method for controlling an X-ray imaging system includes acquiring a plurality of subviews of patient attenuation data wherein a first set of subviews of patient attenuation data is acquired at a first radiation flux level and a second set of subviews of patient attenuation data is acquired at a second radiation flux level. The first radiation flux level is different than the second radiation flux level. The method further includes combining the first set of subviews of patient attenuation data and the second set of subviews of patient attenuation data to form corrected views for subsequent image generation.
摘要翻译：用于控制X射线成像系统的方法和系统。用于控制X射线成像系统的方法包括获取患者衰减数据的多个子视图，其中在第一辐射通量水平获取患者衰减数据的第一组子视图，并且获取患者衰减数据的第二组子视图在第二辐射通量水平。第一辐射通量水平不同于第二辐射通量水平。该方法还包括组合患者衰减数据的第一组子视图和患者衰减数据的第二组子视图以形成用于后续图像生成的校正视图。

8. 发明申请

US20070206720A1 APPARATUS FOR ACQUISITION OF CT DATA WITH PENUMBRA ATTENUATION CALIBRATION 有权
标题翻译：用于获取具有PENUMBRA衰减校准的CT数据的装置
公开(公告)号：US20070206720A1
公开(公告)日：2007-09-06
申请号：US11745765
申请日：2007-05-08
申请人： Jerome Arenson , David Ruimi , Oded Meirav , Robert Armstrong
发明人： Jerome Arenson , David Ruimi , Oded Meirav , Robert Armstrong
IPC分类号： G01N23/083
CPC分类号： A61B6/032 , A61B6/027 , A61B6/06 , A61B6/542 , G21K1/04
摘要： The present invention is a directed method and apparatus for collimating a radiation beam such that the full intensity of the radiation beam does not impinge detectors of a radiation detector assembly that are particularly susceptible to saturation or over-ranging. This collimation can be dynamically adjusted on a per view basis using empirical or scout scan data.
摘要翻译：本发明是一种用于准直辐射束的定向方法和装置，使得辐射束的全部强度不会影响辐射探测器组件的特别容易饱和或超范围的检测器。可以使用经验或侦察扫描数据在每个视图基础上动态调整此准直。

9. 发明申请

US20070116181A1 X-RAY FLUX MANAGEMENT DEVICE 有权
标题翻译： X射线管理设备
公开(公告)号：US20070116181A1
公开(公告)日：2007-05-24
申请号：US11622335
申请日：2007-01-11
申请人： Jerome Arenson , David Ruimi , Oded Meirav , Robert Armstrong
发明人： Jerome Arenson , David Ruimi , Oded Meirav , Robert Armstrong
IPC分类号： G21K3/00
CPC分类号： G21K1/04 , G21K1/043 , Y10T29/49002
摘要： The invention is directed to an x-ray flux management device that adaptively attenuates an x-ray beam to limit the incident flux reaching a subject and radiographic detectors in potentially high-flux areas while not affecting the incident flux and detector measurements in low-flux regions. While the invention is particularly well-suited for CT, the invention is also applicable with other x-ray imaging systems. In addition to reducing the required detector system dynamic range, the present invention provides an added advantage of reducing radiation dose.
摘要翻译：本发明涉及一种x射线通量管理装置，其自适应地衰减X射线束以限制到达对象的入射通量和潜在的高通量区域中的射线照相检测器，同时不影响入射通量和低通量中的检测器测量地区。尽管本发明特别适用于CT，但是本发明也适用于其它X射线成像系统。除了减少所需的检测器系统动态范围之外，本发明还提供了降低辐射剂量的附加优点。

10. 发明申请

US20070100234A1 Methods and systems for tracking instruments in fluoroscopy 审中-公开
标题翻译：荧光检查仪器跟踪方法及系统
公开(公告)号：US20070100234A1
公开(公告)日：2007-05-03
申请号：US11260056
申请日：2005-10-27
申请人： Jerome Arenson , David Ruimi , Oded Meirav , Haim Gelman
发明人： Jerome Arenson , David Ruimi , Oded Meirav , Haim Gelman
IPC分类号： A61B5/05
CPC分类号： A61B6/463 , A61B6/032 , A61B6/4085
摘要： Methods and systems for displaying an instrument in a region of interest are provided. The imaging system includes a multi-slice detector, a processor coupled to the multi-slice detector, and a display configured to display reconstructed images. The processor is configured to receive a plurality of multi-slice scan data, identify at least a portion of an instrument in at least one slice of the plurality of multi-slice scan data, and display the identified instrument portion with an indicator associated with the at least one slice.
摘要翻译：提供了在感兴趣区域中显示仪器的方法和系统。成像系统包括多切片检测器，耦合到多切片检测器的处理器和被配置为显示重建图像的显示器。所述处理器被配置为接收多个多切片扫描数据，识别所述多个切片扫描数据的至少一个切片中的仪器的至少一部分，并且使用与所述多切片扫描数据相关联的指示符来显示所识别的仪器部分至少一片。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式