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公开(公告)号：US20120301003A1
公开(公告)日：2012-11-29
申请号：US13515830
申请日：2010-12-10
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/436
摘要： A system for generating a reconstruction of an object of interest comprises a shape model generator (1) for generating a shape model representing a shape of the object in dependence on a plurality of projections of the object, and a reconstructor (2) for reconstructing the object, based on the projections, in dependence on the shape model to obtain the reconstruction of the object. The reconstructor (2) comprises a soft-tissue reconstructor (4) for generating a reconstruction favoring soft tissue, based on the plurality of projections, and a sparse reconstructor (5) for generating a reconstruction of sparse objects, based on the plurality of projections. The reconstructor (2) comprises a clipping subsystem (3) for clipping an outside of the object from the reconstruction, based on the shape model, or the reconstructor (2) is arranged for reconstructing only an inside and/or boundary of the object as defined by the shape model.
摘要翻译： 用于生成感兴趣对象的重建的系统包括：形状模型生成器（1），用于根据对象的多个投影来生成表示对象的形状的形状模型;以及重建器（2），用于重建 对象，根据投影，依靠形状模型获得物体的重建。 重建器（2）包括用于基于多个投影产生有利于软组织的重建的软组织重建器（4），以及用于基于所述多个突起产生稀疏对象的重建的稀疏重建器（5） 。 重建器（2）包括用于基于形状模型从重构中剪除对象外部的剪辑子系统（3），或者重建器（2）被布置为仅重建对象的内部和/或边界， 由形状模型定义。
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公开(公告)号：US20120207373A1
公开(公告)日：2012-08-16
申请号：US13502475
申请日：2010-10-21
IPC分类号： G06K9/00
CPC分类号： A61B6/502 , A61B6/025 , A61B6/466 , G06K9/00208 , G06K9/6221 , G06T7/0012 , G06T2207/10072 , G06T2207/30068
摘要： A system for three-dimensional analysis of lesions in image data is disclosed. It comprises a lesion detection subsystem (1) for detecting individual lesions and three-dimensional positions of the individual lesions, based on e.g. breast image data (301). It comprises a cluster detection subsystem (2) for detecting a cluster of lesions (302), based on three-dimensional position information of lesions, and associating at least some of the individual lesions with the cluster of lesions (302), based on the three-dimensional positions of the individual lesions. The cluster detection subsystem (2) is arranged for detecting the cluster of lesions (302), based on the three-dimensional positions of the individual lesions. It comprises a cluster analysis subsystem (3) for analyzing the cluster of lesions (302).
摘要翻译： 公开了一种用于图像数据中病变三维分析的系统。 它包括病变检测子系统（1），用于根据例如病毒检测子系统（1）检测个体病变和个体病变的三维位置。 乳房图像数据（301）。 其包括用于基于损伤的三维位置信息来检测病变群集（302）的簇检测子系统（2），并且基于所述病变群集（302）将至少一些个体病变与所述病变簇（302）相关联 个体病变的立体位置。 群体检测子系统（2）被设置为基于个体病变的三维位置来检测病变簇（302）。 它包括用于分析病变簇（302）的聚类分析子系统（3）。
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公开(公告)号：US09087400B2
公开(公告)日：2015-07-21
申请号：US13515830
申请日：2010-12-10
CPC分类号： G06T11/006 , G06T2211/436
摘要： A system for generating a reconstruction of an object of interest comprises a shape model generator (1) for generating a shape model representing a shape of the object in dependence on a plurality of projections of the object, and a reconstructor (2) for reconstructing the object, based on the projections, in dependence on the shape model to obtain the reconstruction of the object. The reconstructor (2) comprises a soft-tissue reconstructor (4) for generating a reconstruction favoring soft tissue, based on the plurality of projections, and a sparse reconstructor (5) for generating a reconstruction of sparse objects, based on the plurality of projections. The reconstructor (2) comprises a clipping subsystem (3) for clipping an outside of the object from the reconstruction, based on the shape model, or the reconstructor (2) is arranged for reconstructing only an inside and/or boundary of the object as defined by the shape model.
摘要翻译： 用于生成感兴趣对象的重建的系统包括：形状模型生成器（1），用于根据对象的多个投影来生成表示对象的形状的形状模型;以及重建器（2），用于重建 对象，根据投影，依靠形状模型获得物体的重建。 重建器（2）包括一个软组织重构器（4），用于基于多个投影产生有利于软组织的重建，以及一个稀疏重建器（5），用于基于多个突起产生稀疏对象的重构 。 重建器（2）包括用于基于形状模型从重建中剪除对象外部的剪辑子系统（3），或者重建器（2）被布置为仅重构对象的内部和/或边界， 由形状模型定义。
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公开(公告)号：US09089307B2
公开(公告)日：2015-07-28
申请号：US13502475
申请日：2010-10-21
CPC分类号： A61B6/502 , A61B6/025 , A61B6/466 , G06K9/00208 , G06K9/6221 , G06T7/0012 , G06T2207/10072 , G06T2207/30068
摘要： A system for three-dimensional analysis of lesions in image data is disclosed. It comprises a lesion detection subsystem (1) for detecting individual lesions and three-dimensional positions of the individual lesions, based on e.g. breast image data (301). It comprises a cluster detection subsystem (2) for detecting a cluster of lesions (302), based on three-dimensional position information of lesions, and associating at least some of the individual lesions with the cluster of lesions (302), based on the three-dimensional positions of the individual lesions. The cluster detection subsystem (2) is arranged for detecting the cluster of lesions (302), based on the three-dimensional positions of the individual lesions. It comprises a cluster analysis subsystem (3) for analyzing the cluster of lesions (302).
摘要翻译： 公开了一种用于图像数据中病变三维分析的系统。 它包括病变检测子系统（1），用于根据例如病毒检测子系统（1）检测个体病变和个体病变的三维位置。 乳房图像数据（301）。 其包括用于基于损伤的三维位置信息来检测病变群集（302）的簇检测子系统（2），并且基于所述病变群集（302）将至少一些个体病变与所述病变簇（302）相关联 个体病变的立体位置。 群体检测子系统（2）被设置为基于个体病变的三维位置来检测病变簇（302）。 它包括用于分析病变簇（302）的聚类分析子系统（3）。
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公开(公告)号：US08923474B2
公开(公告)日：2014-12-30
申请号：US13131277
申请日：2009-11-20
IPC分类号： G01N23/083 , A61B6/00 , G06T11/00
CPC分类号： A61B6/504 , A61B6/4441 , A61B6/466 , A61B6/481 , A61B6/541 , G06T11/006 , G06T2211/404
摘要： The present invention is related to a method for reconstruction of the coronary arteries and an examination apparatus for reconstruction of the coronary arteries. To provide improved coronary artery information, an apparatus and a method are provided where a gating signal is provided (32) and a first gated X-ray image sequence of one of the left or right branches of the coronary arteries is acquired (34) with injected contrast agent into the one of the left or right branches of the coronary arteries. Further, a second gated X-ray image sequence of the other branch of the coronary arteries is acquired (36) with injected contrast agent into said other branch. Then, a gated reconstructing (38) of the left and the right coronary artery is suggested and a volume data (40, 42) of the coronary arteries is generated. The volume data of the left and right coronary arteries is registered (44) in relation to time and space. Further; the registered volume data (48, 50) of the left and the right coronary arteries is combined and a combined coronary artery tree volume data set (52) is generated (54). Finally, the combined coronary tree volume data set is visualized (56).
摘要翻译： 本发明涉及冠状动脉重建方法和冠状动脉重建检查装置。 为了提供改善的冠状动脉信息，提供了一种装置和方法，其中提供门控信号（32），并且获取冠状动脉的左分支或右分支之一的第一选通X射线图像序列（34），其中 将注射的造影剂注射到冠状动脉的左侧或右侧分支中。 此外，冠状动脉的另一个分支的第二选通X射线图像序列（36）被注入造影剂获取到所述另一分支中。 然后，建议左冠状动脉和右冠状动脉的门控重建（38），并且产生冠状动脉的体积数据（40,42）。 左冠状动脉和右冠状动脉的体积数据相对于时间和空间被记录（44）。 进一步; 组合左冠状动脉和右冠状动脉的记录体数据（48,50），并且生成组合的冠状动脉树体积数据组（52）（54）。 最后，组合冠状动脉树体数据集可视化（56）。
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公开(公告)号：US08983577B2
公开(公告)日：2015-03-17
申请号：US13148092
申请日：2010-02-04
CPC分类号： A61B19/54 , A61B90/39 , A61B2034/102 , A61B2090/376 , A61F2002/30619 , A61F2250/0097 , A61F2250/0098 , A61M25/0108
摘要： The present invention relates to a system for determining the orientation of a catheter (2). The system comprises a catheter (2), an asymmetric marker (11) attached to the catheter (2), and an imaging unit (25) for generating a projection image of the asymmetric marker (11), wherein the imaging unit (25) comprises a radiation source for generating radiation for projecting the asymmetric marker (11) in a projection plane and a detection unit for generating the projection image of the asymmetric marker (11) projected in the projection plane. The system comprises further an orientation determination unit for determining the orientation of the asymmetric marker (11) from the projection image of the asymmetric marker (11) and for determining the orientation of the catheter (2) from the determined orientation of the asymmetric marker (11). The asymmetric marker (11) is adapted such that the orientation of the asymmetric marker (11) is determinable from the projection image of the asymmetric marker (11) alone.
摘要翻译： 本发明涉及一种用于确定导管（2）的取向的系统。 该系统包括导管（2），附接到导管（2）的不对称标记（11）和用于产生不对称标记（11）的投影图像的成像单元（25），其中成像单元（25） 包括用于产生用于在投影平面中投影非对称标记（11）的辐射的辐射源和用于产生投射在投影平面中的不对称标记（11）的投影图像的检测单元。 该系统还包括一个取向确定单元，用于从不对称标记物（11）的投影图像中确定不对称标记物（11）的取向，并确定导管（2）从不对称标记物的确定取向 11）。 不对称标记（11）适于使得非对称标记（11）的取向可以从单独的不对称标记（11）的投影图像确定。
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公开(公告)号：US20110295111A1
公开(公告)日：2011-12-01
申请号：US13148092
申请日：2010-02-04
IPC分类号： A61B5/05
CPC分类号： A61B19/54 , A61B90/39 , A61B2034/102 , A61B2090/376 , A61F2002/30619 , A61F2250/0097 , A61F2250/0098 , A61M25/0108
摘要： The present invention relates to a system for determining the orientation of a catheter (2). The system comprises a catheter (2), an asymmetric marker (11) attached to the catheter (2), and an imaging unit (25) for generating a projection image of the asymmetric marker (11), wherein the imaging unit (25) comprises a radiation source for generating radiation for projecting the asymmetric marker (11) in a projection plane and a detection unit for generating the projection image of the asymmetric marker (11) projected in the projection plane. The system comprises further an orientation determination unit for determining the orientation of the asymmetric marker (11) from the projection image of the asymmetric marker (11) and for determining the orientation of the catheter (2) from the determined orientation of the asymmetric marker (11). The asymmetric marker (11) is adapted such that the orientation of the asymmetric marker (11) is determinable from the projection image of the asymmetric marker (11) alone.
摘要翻译： 本发明涉及一种用于确定导管（2）的取向的系统。 该系统包括导管（2），附接到导管（2）的不对称标记（11）和用于产生不对称标记（11）的投影图像的成像单元（25），其中成像单元（25） 包括用于产生用于在投影平面中投影非对称标记（11）的辐射的辐射源和用于产生投射在投影平面中的不对称标记（11）的投影图像的检测单元。 该系统还包括一个取向确定单元，用于从不对称标记物（11）的投影图像中确定不对称标记物（11）的取向，并确定导管（2）从不对称标记物的确定取向 11）。 不对称标记（11）适于使得非对称标记（11）的取向可以从单独的不对称标记（11）的投影图像确定。
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公开(公告)号：US20120020462A1
公开(公告)日：2012-01-26
申请号：US13131277
申请日：2009-11-20
CPC分类号： A61B6/504 , A61B6/4441 , A61B6/466 , A61B6/481 , A61B6/541 , G06T11/006 , G06T2211/404
摘要： The present invention is related to a method for reconstruction of the coronary arteries and an examination apparatus for reconstruction of the coronary arteries. To provide improved coronary artery information, an apparatus and a method are provided where a gating signal is provided (32) and a first gated X-ray image sequence of one of the left or right branches of the coronary arteries is acquired (34) with injected contrast agent into the one of the left or right branches of the coronary arteries. Further, a second gated X-ray image sequence of the other branch of the coronary arteries is acquired (36) with injected contrast agent into said other branch. Then, a gated reconstructing (38) of the left and the right coronary artery is suggested and a volume data (40, 42) of the coronary arteries is generated. The volume data of the left and right coronary arteries is registered (44) in relation to time and space. Further; the registered volume data (48, 50) of the left and the right coronary arteries is combined and a combined coronary artery tree volume data set (52) is generated (54). Finally, the combined coronary tree volume data set is visualized (56).
摘要翻译： 本发明涉及冠状动脉重建方法和冠状动脉重建检查装置。 为了提供改善的冠状动脉信息，提供了一种装置和方法，其中提供门控信号（32），并且获取冠状动脉的左分支或右分支之一的第一选通X射线图像序列（34），其中 将注射的造影剂注射到冠状动脉的左侧或右侧分支中。 此外，冠状动脉的另一个分支的第二选通X射线图像序列（36）被注入造影剂获取到所述另一分支中。 然后，建议左冠状动脉和右冠状动脉的门控重建（38），并且产生冠状动脉的体积数据（40,42）。 左冠状动脉和右冠状动脉的体积数据相对于时间和空间被记录（44）。 进一步; 组合左冠状动脉和右冠状动脉的记录体数据（48,50），并且生成组合的冠状动脉树体积数据组（52）（54）。 最后，组合冠状动脉树体数据集可视化（56）。
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9.发明申请TRUNCATION COMPENSATION FOR ITERATIVE CONE-BEAM CT RECONSTRUCTION FOR SPECT/CT SYSTEMS 有权用于SPECT / CT系统的迭代锥束CT重建的功能补偿公开(公告)号：US20130294570A1
公开(公告)日：2013-11-07
申请号：US13979142
申请日：2012-01-18
IPC分类号： G06T11/00
CPC分类号： A61B6/5294 , A61B6/032 , A61B6/037 , A61B6/488 , A61B6/5211 , A61B6/5229 , A61B6/5235 , G06K9/2054 , G06K9/32 , G06K9/3233 , G06K9/6202 , G06K9/78 , G06K9/80 , G06K2009/6213 , G06T7/0012 , G06T11/005 , G06T2211/432
摘要： A multiple modality imaging system (10) includes a cone-beam computed tomography scanner (24, 30) which acquires CT projection data of a subject (22) in an examination region (18) and a nuclear imaging scanner which concurrently/subsequently acquires nuclear projection data of the subject in the examination region. A CT reconstruction processor (34) is programmed to perform the steps of: in the CT projection data, defining a field-of-view (FoV) with a voxel grid in a trans-axial direction; determining the subject's maximum trans-axial extents; generating an extending FoV by extending the voxel grid of the FoV to at least one extended region outside the FoV that encompass at least the determined maximum trans-axial extents and all attenuation in the trans-axial direction; and iteratively reconstructing the CT projection data into an attenuation map of the extended FoV. At least one nuclear reconstruction processor (44) is programmed to correct the acquired nuclear projection data based on the iteratively reconstructed attenuation map.
摘要翻译： 多模式成像系统（10）包括锥形束计算机断层摄影扫描仪（24,30），其在检查区域（18）中获取对象（22）的CT投影数据和同时/随后获取核的核成像扫描仪 检查区域中的对象的投影数据。 CT重建处理器（34）被编程为执行以下步骤：在CT投影数据中，沿轴向方向定义具有体素栅格的视场（FoV）; 确定受试者的最大跨轴范围; 通过将FoV的体素网格延伸到FoV外部的至少一个延伸区域来产生延伸的FoV，该至少一个延伸区域至少包含所确定的最大跨轴范围和沿轴向方向的所有衰减; 并将CT投影数据迭代地重建成扩展FoV的衰减图。 至少一个核重建处理器（44）被编程为基于迭代重建的衰减图来校正所获取的核投影数据。
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公开(公告)号：US09269166B2
公开(公告)日：2016-02-23
申请号：US14116367
申请日：2012-04-26
CPC分类号： G06T11/003 , A61B6/032 , A61B6/037 , A61B6/4417 , A61B6/486 , A61B6/5205 , A61B6/5235 , A61B6/5264 , A61B6/5288 , G06T7/0012 , G06T11/005 , G06T2211/412
摘要： A method includes performing a motion compensated reconstruction of functional projection data using a patient-adapted motion model, which is generated based on a generic anatomical motion model and imaging data from a structural scan. A system includes a first adapter (202) configured to adapt a generic anatomical model to structural image data, producing an adapted model, a forward projector (204) configured to forward project the adapted model, producing forward projected data, and a second adapter (206) configured to adapt the forward projected data to individual projections of projected data, which is used to generate the structural image data, producing a patient-adapted motion model.
摘要翻译： 一种方法包括使用基于通用解剖运动模型和来自结构扫描的成像数据生成的患者适应运动模型来执行功能投影数据的运动补偿重建。 一种系统包括：第一适配器（202），其被配置为使通用解剖模型适应于结构图像数据，产生适应模型;前投影仪（204），被配置为向所述适配模型进行投影，产生向前投影数据;以及第二适配器 206），其被配置为使所述向前投影的数据适应于用于生成所述结构图像数据的投影数据的各个投影，产生患者适应的运动模型。
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