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21. 发明公开

EP1646316A2 COMPUTED TOMOGRAPHY SCANNER WITH LARGE GANTRY BORE 有权
标题翻译：与大框架开口CAT扫描扫描仪
公开(公告)号：EP1646316A2
公开(公告)日：2006-04-19
申请号：EP04743933.6
申请日：2004-07-12
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J.
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4014 , A61B6/4291 , A61B6/482 , G01N23/04
摘要： A computed tomography scanner includes a rotating gantry (20) defining an examination region (16). A first radiation source (22) is disposed on the rotating gantry (20) and emits first radiation (32) into the examination region (16). A second radiation source (24) is disposed on the rotating gantry (20) and emits second radiation (36) into the examination region (16). The second radiation source (24) is angularly spaced around the gantry from the first radiation source (22). A first radiation detector (30, 30') receives the first radiation (32). A center of the first radiation detector (30, 30') is angularly spaced around the gantry from the first radiation source (22) by less than 180°. A second radiation detector (34) receives the second radiation (36). A center of the second radiation detector (34) is angularly spaced around the gantry from the second radiation source (24) by less than 180°.

22. 发明公开

EP1562478A1 CONEBEAM COMPUTED TOMOGRAPHY IMAGING 有权
标题翻译：锥形束成像计算机
公开(公告)号：EP1562478A1
公开(公告)日：2005-08-17
申请号：EP03808825.8
申请日：2003-10-08
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J. , BROWN, Kevin, M. , KLING, Patrick, J.
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , A61B6/541 , A61B6/583 , G06T11/005 , G06T2211/412 , Y10S378/901
摘要： An image reconstruction method for reconstructing cone or wedge-beam computed tomography projection data includes re-binning (50) the projection data to associate projection data having the similar angular orientation (q), weighting (60) projection data based on at least one of its angular orientation (q) and its location within a detector aperture (20), and reconstructing (66) the weighted projection data (64) to form a volume image representation (70). In one preferred embodiment, the weighting (60) includes distributing (56) re-binned projection data (52) associated with a selected image element which one of (a) has the same angular orientation (q) and (b) is angularly separated by integer multiples of 180° into a selected one or more of a plurality of parallel processing pipelines (60m), and combining (62) the outputs of the selected one or more parallel processing pipelines (60m) to produce weighted projection data (64).

23. 发明授权

EP2271263B1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 有权转让
标题翻译：源和/或探测器定位系统
公开(公告)号：EP2271263B1
公开(公告)日：2011-11-30
申请号：EP09738543.9
申请日：2009-04-30
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
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.

24. 发明公开

EP2352432A1 CONE BEAM Z-AXIS COVERAGE 有权转让
标题翻译： KONUSSTRAHL-Z-ACHSEN-ABDECKUNG
公开(公告)号：EP2352432A1
公开(公告)日：2011-08-10
申请号：EP09760600.8
申请日：2009-10-28
申请人： Koninklijke Philips Electronics N.V.
发明人： BROWN, Kevin, M. , HEUSCHER, Dominic, J.
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4021 , A61B6/4085 , A61B6/5258 , A61B6/5282
摘要： An imaging system includes a radiation source (110) with an anode (202). The radiation source (110) rotates around an examination region (106) about a longitudinal axis (108) and emits radiation from a focal spot (206) on the anode (202). A source collimator (112) collimates the emitted radiation to produce a generally conically shaped radiation beam that traverses the examination region. The generally conically shaped radiation beam has an extended cone angle along the longitudinal axis that is greater than an effective maximum cone angle determined by an anode angle of the anode (202). A detector array (116) detects radiation that traverses the examination region and generates signals indicative thereof. A reconstructor (118) reconstructs the signals to generate volumetric image data indicative of the examination region.
摘要翻译：成像系统包括具有阳极（202）的辐射源（110）。辐射源（110）围绕纵向轴线（108）围绕检查区域（106）旋转，并且从阳极（202）上的焦点（206）发射辐射。源准直器（112）准直所发射的辐射以产生穿过检查区域的大致圆锥形的辐射束。大致圆锥形的辐射束沿着纵向轴线具有大于由阳极（202）的阳极角确定的有效最大锥角的扩展锥角。检测器阵列（116）检测穿过检查区域并产生指示其的信号的辐射。重建器（118）重建信号以产生指示检查区域的体积图像数据。

25. 发明授权

EP2205156B1 PROSPECTIVE CARDIAC GATING IN COMPUTED TOMOGRAPHY 有权转让
标题翻译：前瞻性HERZGATING在计算机
公开(公告)号：EP2205156B1
公开(公告)日：2011-06-29
申请号：EP08845200.8
申请日：2008-10-02
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J. , ZABIC, Stanislav
IPC分类号： A61B6/00
CPC分类号： A61B6/541 , A61B6/027 , A61B6/503
摘要： A computed tomography scanner (10) acquires prospectively gated cardiac projection data. A scan controller (42) causes the scanner (10) to acquire projection data at the predicted location of a target cardiac phase in a cardiac cycle of the patient. An error determiner (44) determines an error between the target phase and the phase at which the projection data was actually acquired. Depending on the error, the patient is rescanned in a subsequent cardiac cycle.

26. 发明公开

EP2271263A1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 有权转让
标题翻译：源和/或探测器定位系统
公开(公告)号：EP2271263A1
公开(公告)日：2011-01-12
申请号：EP09738543.9
申请日：2009-04-30
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
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：医学成像系统包括由大体上固定的机架（102）可旋转地支撑的大致静止的机架（102）和旋转机架（106），其绕着围绕检查区域的纵向轴线旋转。医学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），以便在扫描检查区域中的对象的同时相对于旋转机架（106）沿纵向轴线的方向平移。医学成像系统还包括探测器阵列（120），探测器阵列（120）检测穿过检查区域并产生指示其的信号的辐射束。检测器阵列（120）可移动地固定到旋转机架（106），以便在扫描检查区域中的对象的同时与辐射源（112）协调地移动。

27. 发明公开

EP1649482A2 CYLINDRICAL X-RAY TUBE FOR COMPUTED TOMOGRAPHY IMAGING 有权
标题翻译：圆柱射线管FOR CAT扫描图片
公开(公告)号：EP1649482A2
公开(公告)日：2006-04-26
申请号：EP04743985.6
申请日：2004-07-15
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J.
IPC分类号： H01J35/10 , H01J35/30
CPC分类号： H01J35/101 , A61B6/027 , H01J35/14 , H01J35/26 , H01J35/30 , H01J2235/086
摘要： A computed tomography imaging system includes an x ray tube (12, 212) that injects an x ray conebeam into an examination region (14). The x ray tube (12, 212) includes a rotating cylindrical anode (30, 230, 330, 430) having a target outer surface region. The cylindrical anode (30, 230, 330, 430) rotates about a longitudinally aligned cylinder axis (32). Electrons are accelerated toward a selected spot on the target outer surface region of the cylindrical anode (30, 230, 330, 430). Electrostatic or electromagnetic deflectors (64, 68) sweep the selected spot back and forth across the target outer surface region of the cylindrical anode (30, 330, 430). The imaging system further includes a rotating gantry (22) that revolves the x ray tube (12, 212) about the examination region (14) around a rotation axis that is parallel to the cylindrical axis, and an x-ray detector (16) arranged to detect x rays after said x rays pass through the examination region (14).

28. 发明公开

EP2224852A1 SYNCHRONOUS INTERVENTIONAL SCANNER 审中-公开
标题翻译：同步干扰器扫描仪
公开(公告)号：EP2224852A1
公开(公告)日：2010-09-08
申请号：EP08866484.2
申请日：2008-12-12
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J.
IPC分类号： A61B6/03 , A61B6/12
CPC分类号： A61B6/032 , A61B6/027 , A61B6/06 , A61B6/107 , A61B6/12 , A61B6/4441 , A61B6/542 , A61B6/547 , A61B34/20 , A61B2090/3762
摘要： When performing an interventional CT scan on a subject, radiation dose is limited by employing a dynamic collimator (142) that collimates X-rays emitted by an X- ray source (112). The X-ray source (112) and collimator (142) rotate around a VOI (122) in the subject, and move axially along the VOI (122) to maintain the tip of a medical instrument (144) within the field of view of the narrow cone beam. An instrument tracking component (146) maintains information related to previous and current positions of the instrument (144) relative to the VOI (122) and facilitates tracking the instrument as it moves through the VOI (122). A user interface (136) superimposes images of a sub-region of the VOI (122) in which the instrument tip is located onto a pre-generated diagnostic image for viewing by an operator, to track the medical instrument (144).

29. 发明授权

EP1649482B1 CYLINDRICAL X-RAY TUBE FOR COMPUTED TOMOGRAPHY IMAGING 有权
标题翻译：圆柱射线管FOR CAT扫描图片
公开(公告)号：EP1649482B1
公开(公告)日：2009-04-15
申请号：EP04743985.6
申请日：2004-07-15
申请人： Koninklijke Philips Electronics N.V.
发明人： HEUSCHER, Dominic, J.
IPC分类号： H01J35/10 , H01J35/30
CPC分类号： H01J35/101 , A61B6/027 , H01J35/14 , H01J35/26 , H01J35/30 , H01J2235/086
摘要： A computed tomography imaging system includes an x ray tube (12, 212) that injects an x ray conebeam into an examination region (14). The x ray tube (12, 212) includes a rotating cylindrical anode (30, 230, 330, 430) having a target outer surface region. The cylindrical anode (30, 230, 330, 430) rotates about a longitudinally aligned cylinder axis (32). Electrons are accelerated toward a selected spot on the target outer surface region of the cylindrical anode (30, 230, 330, 430). Electrostatic or electromagnetic deflectors (64, 68) sweep the selected spot back and forth across the target outer surface region of the cylindrical anode (30, 330, 430). The imaging system further includes a rotating gantry (22) that revolves the x ray tube (12, 212) about the examination region (14) around a rotation axis that is parallel to the cylindrical axis, and an x-ray detector (16) arranged to detect x rays after said x rays pass through the examination region (14).

30. 发明公开

EP1800264A1 IMAGE RECONSTRUCTION WITH VOXEL DEPENDENT INTERPOLATION 有权
标题翻译：图像重建具有内插voxelabhängiger
公开(公告)号：EP1800264A1
公开(公告)日：2007-06-27
申请号：EP05784368.2
申请日：2005-09-22
申请人： Koninklijke Philips Electronics N.V.
发明人： ZIEGLER, Andy , KOEHLER, Thomas , NIELSEN, Tim , PROKSA, Roland , HEUSCHER, Dominic, J.
IPC分类号： G06T11/00
CPC分类号： G06T11/006
摘要： A radiographic imaging apparatus includes a radiation detector (16) and a radiation source (12) which projects a non-parallel beam of radiation into field of view (14). A footprint of each voxel (v) which is projected on the detector (16) is corrected based on the position of the voxel (v) in the field of view (14) in relation to the radiation detector (16) and the radiation source (12). The contributions from substantially parallel redundant projections are further combined based on a fractional distance frac from a center point (82) of the voxel (v) to a center of each of the adjacent redundant projections.

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