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1. 发明申请

WO2009056999A2 PROSPECTIVE CARDIAC GATING IN COMPUTED TOMOGRAPHY 审中-公开
标题翻译：前瞻性心脏病在计算机断层摄影中的应用
公开(公告)号：WO2009056999A2
公开(公告)日：2009-05-07
申请号：PCT/IB2008/054031
申请日：2008-10-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , HEUSCHER, Dominic, J. , ZABIC, Stanislav
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.
摘要翻译：计算机断层摄影扫描仪（10）获取前瞻性门控心脏投影数据。扫描控制器（42）使得扫描仪（10）获取患者的心动周期中目标心脏时相的预测位置处的投影数据。错误确定器（44）确定目标相位与实际获取投影数据的相位之间的误差。根据错误情况，患者在随后的心动周期内重新扫描。

2. 发明申请

WO2009083851A1 SYNCHRONOUS INTERVENTIONAL SCANNER 审中-公开
标题翻译：同步传统扫描仪
公开(公告)号：WO2009083851A1
公开(公告)日：2009-07-09
申请号：PCT/IB2008/055275
申请日：2008-12-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , HEUSCHER, Dominic, J.
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).
摘要翻译：当对受试者进行介入CT扫描时，通过使用准直X射线源（112）发射的X射线的动态准直器（142）来限制辐射剂量。 X射线源（112）和准直器（142）围绕对象的VOI（122）旋转，并沿着VOI（122）轴向移动，以将医疗器械（144）的尖端保持在窄锥形梁。仪器跟踪部件（146）保持与仪器（144）相对于VOI（122）的先前和当前位置相关的信息，并且便于当仪器通过VOI（122）时跟踪仪器。用户界面（136）将仪器尖端所在的VOI（122）的子区域的图像叠加到预先生成的诊断图像上以供操作者观看以跟踪医疗器械（144）。

3. 发明申请

WO2004072905A1 SYSTEM AND METHOD FOR HELICAL CONE-BEAM COMPUTED TOMOGRAPHY WITH EXACT RECONSTRUCTION 审中-公开
标题翻译：用于具有精确重建的螺旋锥体计算机图像的系统和方法
公开(公告)号：WO2004072905A1
公开(公告)日：2004-08-26
申请号：PCT/IB2004/000386
申请日：2004-02-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HEUSCHER, Dominic, J. , NOO, Frederic, N. , BROWN, Kevin, M. , PACK, Jed, D.
发明人： HEUSCHER, Dominic, J. , NOO, Frederic, N. , BROWN, Kevin, M. , PACK, Jed, D.
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/416 , G06T2211/421
摘要： A helical conebeam computed tomography imaging system includes an x-ray source (12) that produces an x ray conebeam, and an x-ray detector array (16) that detects the x ray conebeam after passing through an examination region (14). The x-ray detector array (16) generates projection data in a detector coordinate system defined with reference to the detector array (16). A derivative processor (60) computes a derivative of the projection data with respect to a helix angle of the helical trajectory at fixed projection direction to generate differentiated projection data. A convolution processor (64) convolves the differentiated projection data with a kernel function to produce filtered projection data. The convolving is performed in the detector coordinate system. A backprojector (42, 82) backprojects the filtered projection data to obtain an image representation.
摘要翻译：螺旋锥束计算机断层摄影成像系统包括产生x射线锥束的X射线源（12）和在通过检查区域（14）之后检测x射线锥束的x射线检测器阵列（16）。 X射线检测器阵列（16）在参考检测器阵列（16）定义的检测器坐标系中产生投影数据。衍生处理器（60）计算相对于在固定投影方向的螺旋轨迹的螺旋角的投影数据的导数，以产生微分投影数据。卷积处理器（64）将差分投影数据与内核函数进行卷积，以产生经滤波的投影数据。在检测器坐标系中进行卷积。背投影机（42,82）反投影经过滤的投影数据以获得图像表示。

4. 发明申请

WO2009141766A2 DYNAMIC ADJUSTABLE SOURCE COLLIMATION DURING FLY-BY SCANNING 审中-公开
标题翻译：动态扫描期间的动态可调源数据收集
公开(公告)号：WO2009141766A2
公开(公告)日：2009-11-26
申请号：PCT/IB2009/051986
申请日：2009-05-13
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , HEUSCHER, Dominic, J.
发明人： HEUSCHER, Dominic, J.
IPC分类号： G06T11/00 , A61B6/00
CPC分类号： A61B6/032 , A61B6/027 , A61B6/035 , A61B6/06 , A61B6/4085 , A61B6/4476 , A61B6/466 , A61B6/503 , A61B6/542
摘要： A medical imaging system (100) includes a radiation source (112) that rotates around an examination region about a longitudinal axis and emits radiation while translating in a direction of the longitudinal axis during a fly-by scan. A source collimator (114) collimates the emitted radiation during the fly-by scan to form a generally conical shaped radiation beam that traverses the examination region. The source collimator (114) dynamically varies collimation during the scan so as to increase and decrease a width of the radiation beam in the longitudinal axis direction during the scan. A detector array (122) detects radiation that traverses the examination region and generates signals indicative thereof. A reconstructor (126) reconstructs the signals to generate volumetric image data indicative of the examination region.
摘要翻译：医疗成像系统（100）包括辐射源（112），辐射源围绕纵向轴线的检查区域旋转，并且在飞行扫描期间沿纵向轴线的方向发射辐射。源准直器（114）在飞越扫描期间校准所发射的辐射，以形成穿过检查区域的大致圆锥形的辐射束。源准直器（114）在扫描期间动态地改变准直，以便在扫描期间增加和减小辐射束在纵向轴线方向上的宽度。检测器阵列（122）检测穿过检查区域并产生指示其的信号的辐射。重建器（126）重建信号以产生指示检查区域的体积图像数据。

5. 发明申请

WO2009133530A1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 审中-公开
标题翻译：源和/或检测器定位系统
公开(公告)号：WO2009133530A1
公开(公告)日：2009-11-05
申请号：PCT/IB2009/051764
申请日：2009-04-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
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。

6. 发明申请

WO2005008716A2 CYLINDRICAL X-RAY TUBE FOR COMPUTED TOMOGRAPHY IMAGING 审中-公开
标题翻译：圆柱形X射线管用于计算机断层摄影成像
公开(公告)号：WO2005008716A2
公开(公告)日：2005-01-27
申请号：PCT/IB2004/002324
申请日：2004-07-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HEUSCHER, Dominic, J.
发明人： HEUSCHER, Dominic, J.
IPC分类号： H01J35/00
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).
摘要翻译：计算机断层摄影成像系统包括将x射线锥束注射到检查区域（14）中的x射线管（12,212）。 X射线管（12,212）包括具有目标外表面区域的旋转圆柱形阳极（30,230,330,430）。圆柱形阳极（30,230,330,430）围绕纵向对齐的圆柱轴线（32）旋转。电子朝圆柱形阳极（30,230,330,430）的目标外表面区域上的选定点加速。静电或电磁偏转器（64,68）在圆柱形阳极（30,330,430）的目标外表面区域上来回扫过选定的点。成像系统还包括旋转机架（22）和X射线检测器（16），旋转机架（22）围绕平行于圆柱轴线的旋转轴围绕检查区域（14）旋转X射线管（12,212）用于在所述x射线通过检查区域（14）之后检测x射线。

7. 发明申请

WO2007140090A2 CONE-BEAM CT HALF-CYCLE CLOSED HELICAL TRAJECTORY 审中-公开
公开(公告)号：WO2007140090A2
公开(公告)日：2007-12-06
申请号：PCT/US2007/068523
申请日：2007-05-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , HEUSCHER, Dominic, J.
发明人： HEUSCHER, Dominic, J.
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4028
摘要： A tomographic apparatus (10) includes radiation source (20), at least one radiation sensitive detector (30), and a reconstruction system (40). The radiation source (20) sweeps along a z-axis (16) and returns to its initial position in coordination with about two revolutions of the radiation source (20) about an imaging region (32) with a frequency of about half a frequency of a revolution of the radiation source (20) about the imaging region (32). The at least one radiation sensitive detector (30) detects radiation emitted by the radiation source (20) that traverses a volume of interest (52) within the imaging region (32) and generates data indicative of the detected radiation. The reconstruction system (40) reconstructs the detected data to generate an image of a subject in the volume of interest (52).
摘要翻译：断层摄影装置（10）包括辐射源（20），至少一个辐射敏感探测器（30）和重建系统（40）。辐射源（20）沿着z轴（16）扫掠并且以关于成像区域（32）的大约两倍的频率的频率的大约两倍的频率的辐射源（20）的约两圈的协调关系返回到其初始位置关于成像区域（32）的辐射源（20）的旋转。所述至少一个辐射敏感检测器（30）检测由所述辐射源（20）发射的穿过所述成像区域（32）内的感兴趣体积（52）的辐射，并产生指示所检测的辐射的数据。重建系统（40）重建检测到的数据以产生感兴趣体积中的对象的图像（52）。

8. 发明申请

WO2005072612A1 COMPUTED TOMOGRAPHY IMAGING WITH PIXEL STAGGERING AND FOCAL SPOT MODULATION 审中-公开
标题翻译：计算机图像成像与像素分层和焦点调制
公开(公告)号：WO2005072612A1
公开(公告)日：2005-08-11
申请号：PCT/IB2005/050139
申请日：2005-01-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , HEUSCHER, Dominic, J. , UTRUP, Steven, J. , SHECHTER, Gilad , KOEHLER, Thomas
发明人： HEUSCHER, Dominic, J. , UTRUP, Steven, J. , SHECHTER, Gilad , KOEHLER, Thomas
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4021 , A61B6/4085 , G06T11/005
摘要： A computed tomography imaging apparatus includes a radiation detector array (16) having detector elements (50) that are staggered in an axial direction (Z) by a selected non-zero staggering fraction (ds) of a detector spacing (dz) along the axial direction (Z). A radiation source (12) provides focal spot modulation at least between two spots (FS1, FS2) to increase a sampling rate transverse to the axial direction (Z).
摘要翻译：计算机断层摄影成像设备包括具有检测器元件（50）的辐射检测器阵列（16），所述检测器元件（50）沿轴向方向（Z）以沿轴向方向的检测器间隔（dz）的选定的非零交错分数（ds）交错排列方向（Z）。辐射源（12）至少在两个点（FS1，FS2）之间提供焦点调制，以增加横向于轴向方向（Z）的采样率。

9. 发明申请

WO2005004722A3 COMPUTED TOMOGRAPHY SCANNER WITH LARGE GANTRY BORE 审中-公开
公开(公告)号：WO2005004722A3
公开(公告)日：2005-01-20
申请号：PCT/IB2004/002271
申请日：2004-07-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HEUSCHER, Dominic, J.
发明人： HEUSCHER, Dominic, J.
IPC分类号： A61B6/03
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°.

10. 发明申请

WO2010052614A1 CONE BEAM Z-AXIS COVERAGE 审中-公开
标题翻译： CONE光束Z轴覆盖
公开(公告)号：WO2010052614A1
公开(公告)日：2010-05-14
申请号：PCT/IB2009/054790
申请日：2009-10-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BROWN, Kevin, M. , HEUSCHER, Dominic, J.
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）检测穿过检查区域的辐射并产生指示其的信号。重建器（118）重建信号以产生指示检查区域的体积图像数据。

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