-
1.发明授权
公开(公告)号：EP1940292B1
公开(公告)日：2015-09-09
申请号：EP06821175.4
申请日：2006-10-06
发明人： BREDNO, Joerg , ROSE, Georg , WEESE, Juergen , GROTH, Alexandra , MOLLUS, Sabine , BERTRAM, Matthias , WIEGERT, Jens , NEUKIRCHEN, Christoph
IPC分类号： A61B6/00
-
公开(公告)号：EP2283464B1
公开(公告)日：2015-01-21
申请号：EP09750224.9
申请日：2009-05-13
IPC分类号： G06T11/00
CPC分类号： G06T11/005
-
公开(公告)号：EP2504811B1
公开(公告)日：2014-06-18
申请号：EP10784582.8
申请日：2010-10-29
IPC分类号： G06T5/00
CPC分类号： G06T5/002 , G06T5/003 , G06T2207/10081 , G06T2207/20012 , G06T2207/30004
-
-
公开(公告)号：EP2308028B1
公开(公告)日：2017-04-26
申请号：EP09769751.0
申请日：2009-06-23
发明人： WIEGERT, Jens , BERTRAM, Matthias
CPC分类号： G06T11/005 , A61B6/032 , A61B6/542
-
公开(公告)号：EP2049018B1
公开(公告)日：2015-10-21
申请号：EP07805184.4
申请日：2007-07-18
IPC分类号： A61B6/00
CPC分类号： A61B6/488 , A61B6/027 , A61B6/03 , A61B6/4441 , A61B6/469 , Y10S378/901
摘要： In three-dimensional X-ray imaging, with C-arm systems, scan setup has to be performed manually under fluoroscopic control. According to an exemplary embodiment of the present invention, a scan planning system for planning a data acquisition process is provided, which is adapted to predict a field of view to be reconstructed and an image quality in the field of view with respect to the actual three-dimensional scan parameter set and previously acquired images or other information. The scan planning system may be accomplished by a stand control unit.
-
公开(公告)号：EP2084558B1
公开(公告)日：2013-10-23
申请号：EP07827055.0
申请日：2007-11-12
发明人： ENGEL, Klaus J. , ZEITLER, Guenter , BAEUMER, Christian , HERRMANN, Christoph , WIEGERT, Jens , PROKSA, Roland , RÖSSL, Ewald , STEADMAN BOOKER, Roger
IPC分类号： G01T1/29
CPC分类号： G01T1/2928
-
公开(公告)号：EP2174162A2
公开(公告)日：2010-04-14
申请号：EP08776446.0
申请日：2008-06-23
发明人： WIEGERT, Jens , BERTRAM, Matthias
IPC分类号： G01T1/164
CPC分类号： G01T1/1648 , G06T11/005
摘要： A method, a computer program as well as a corresponding apparatus for eliminating scatter artefacts that corrupt an image of an object using computed tomography, wherein X-ray projections of the object are at least partially truncated, whereas the method comprises the steps of: reconstructing a truncated image of the object with a limited field of view from the projections; constructing a model of the object in an extended field of view using the truncated image of the object; deriving a scatter estimate by means of Monte-Carlo simulation using the model of object; correcting a projection of the object for X-ray scatter based on the scatter estimate; reconstructing a scatter-corrected image using the corrected projections.
-
9.发明公开
公开(公告)号：EP1940292A2
公开(公告)日：2008-07-09
申请号：EP06821175.4
申请日：2006-10-06
发明人： BREDNO, Joerg , ROSE, Georg , WEESE, Juergen , GROTH, Alexandra , MOLLUS, Sabine , BERTRAM, Matthias , WIEGERT, Jens , NEUKIRCHEN, Christoph
IPC分类号： A61B6/00
摘要： Adaptively controlling an imaging system (200, 205) includes constructing model feature characteristics (105) of a process over time, determining parameters and commands (110) for controlling the imaging system for each state of the process, performing data acquisition (120) for the process, extracting current features (130) of the process from the acquired data, matching (135) the current features (130) with the model feature characteristics (105) to determine a state of the process (140), and controlling the data acquisition based on the state of the process to produce optimized data.
-
10.发明公开IMAGE GENERATION DEVICE WITH OPTIMIZED DOSE CONTROL 有权BILDERZEUGUNGSVORRICHTUNG MIT OPTIMIERTER DOSISSTEUERUNG
公开(公告)号：EP2308028A1
公开(公告)日：2011-04-13
申请号：EP09769751.0
申请日：2009-06-23
发明人： WIEGERT, Jens , BERTRAM, Matthias
CPC分类号： G06T11/005 , A61B6/032 , A61B6/542
摘要： The present invention relates to an image generation device for generating an image from measured data, wherein image quality is optimized for a region of interest and to an imaging system comprising this image generation device. The image generation device comprises a noise determination unit for determining a distribution of noise in a projection domain of the region of interest, and a dose control unit (32) for determining a dose profile for a radiation source (2) of said image generation device based on said determined distribution of noise by using a noise propagation algorithm. Thereby, signal-to-noise ratio of a reconstructed volume can be improved and is not sensitively dependent on a selected region of interest.
摘要翻译： 本发明涉及一种用于从测量数据生成图像的图像生成装置，其中针对感兴趣区域优化图像质量以及包括该图像生成装置的成像系统。 图像产生装置包括：噪声判定单元，用于确定感兴趣区域的投影域中的噪声分布;以及剂量控制单元（32），用于确定所述图像生成装置的辐射源（2）的剂量分布 基于所述确定的噪声分布，使用噪声传播算法。 因此，可以改善重建体积的信噪比并且不敏感地依赖于所选择的感兴趣区域。
-
-
-
-
-
-
-
-
-
搜索结果
40 条记录 (耗时 0.014 秒)
