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1. 发明授权

US6154516A Cardiac CT system 失效
标题翻译：心脏CT系统
公开(公告)号：US6154516A
公开(公告)日：2000-11-28
申请号：US157028
申请日：1998-09-18
申请人： Dominic Heuscher , Shalabh Chandra , Raj Shekhar , Dave Hoffmeyer
发明人： Dominic Heuscher , Shalabh Chandra , Raj Shekhar , Dave Hoffmeyer
IPC分类号： A61B6/00 , A61B6/03 , G01N23/083
CPC分类号： A61B6/541 , A61B6/032 , A61B6/481 , A61B6/488 , A61B6/503 , A61B6/504 , A61B6/027 , Y10S378/901
摘要： A cardiac gated spiral CT scanner (10) has a source of penetrating radiation (20) arranged for rotation about an examination region (14) having a central axis extending in a z direction. The source (20) emits a beam of radiation (22) that passes through the examination region (14) as the source (20) rotates. A patient support (30) holds a patient within the examination region (14) and translates the patient through the examination region (14) in the z direction while this source (20) is rotated such that the source (20) follows a helical path relative to the patient. A control processor (90) implements a patient-specific scan protocol in response to measured patient characteristics (for example, the patient's heart rate, the patient's breath hold time, and/or the range of coverage in the z direction based on the patient's anatomy) and scanner characteristics (for example, the number of detector rings, and/or the scan rate). Radiation detectors (40) are arranged to receive radiation from the source (20) after it has traversed the examination region (14). An ECG monitor (80) acquires ECG data from the patient. The ECG data is used to correlate phases of the patient's heart with data collected by the radiation detectors (40). An image reconstruction processor (60) reconstructs image representations of the patient based on data received from the radiation detectors (40) and ECG monitor (80). A human viewable display (70) selectively displays the image representations for assessing cardiac function.
摘要翻译：心脏门控螺旋CT扫描器（10）具有穿透辐射源（20），其布置成围绕具有在z方向上延伸的中心轴线的检查区域（14）旋转。当源（20）旋转时，源（20）发射穿过检查区域（14）的辐射束（22）。病人支撑件（30）将患者保持在检查区域（14）内，并且在该源（20）旋转时使患者通过检查区域（z）在z方向上平移，使得源（20）遵循螺旋路径相对于患者。控制处理器（90）响应于测量的患者特征（例如，患者的心率，患者的呼吸保持时间，和/或基于患者的解剖结构在z方向上的覆盖范围）实施患者特异性扫描方案）和扫描仪特性（例如，检测器环的数量和/或扫描速率）。辐射检测器（40）被布置成在源（20）穿过检查区域（14）之后接收来自源（20）的辐射。 ECG监测器（80）从患者获取ECG数据。 ECG数据用于将患者心脏的相位与辐射检测器（40）收集的数据相关联。图像重建处理器（60）基于从辐射检测器（40）和ECG监视器（80）接收的数据来重建患者的图像表示。人类可视显示器（70）选择性地显示用于评估心脏功能的图像表示。

2. 发明申请

US20060182223A1 Cylindrical x-ray tube for computed tomography imaging 失效
标题翻译：用于计算机断层扫描成像的圆柱X射线管
公开(公告)号：US20060182223A1
公开(公告)日：2006-08-17
申请号：US10564573
申请日：2004-07-15
申请人： Dominic Heuscher
发明人： Dominic Heuscher
IPC分类号： 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).
摘要翻译：计算机断层摄影成像系统包括将X射线锥束射入检查区域（14）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体轴线（32）旋转。电子朝向圆柱形阳极（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掠所选择的光斑。所述成像系统还包括围绕围绕所述圆柱轴线的旋转轴围绕所述检查区域围绕所述x射线管（12,212）旋转的旋转台架（22），以及x射线检测器（16）布置成在所述x射线通过检查区域（14）之后检测x射线。

3. 发明授权

US09332946B2 Adaptive control of sampling frequency for computed tomography 有权
标题翻译：计算机断层扫描采样频率的自适应控制
公开(公告)号：US09332946B2
公开(公告)日：2016-05-10
申请号：US13531471
申请日：2012-06-22
申请人： Dominic Heuscher , Frederic Noo
发明人： Dominic Heuscher , Frederic Noo
IPC分类号： A61B6/03 , A61B6/06 , A61B6/00
CPC分类号： A61B6/032 , A61B6/06 , A61B6/405 , A61B6/481 , A61B6/507 , A61B6/5205 , A61B6/54 , A61B6/541 , A61B6/542 , A61B6/544
摘要： A method of contrast-enhanced computed tomography (CT) imaging can include repeatedly scanning a target region at a frequency during a session, the frequency initially being a first rate. After detecting an increase of the attenuation of radiation by a contrast-enhanced first structure within a target region, the frequency can be increased to a second rate. After detecting a subsequent decrease in the attenuation, the frequency can be decreased to a third rate.
摘要翻译：对比度增强计算机断层摄影（CT）成像的方法可以包括在会话期间以频率重复扫描目标区域，频率最初是第一速率。在通过目标区域中的对比度增强的第一结构检测到辐射的衰减的增加之后，频率可以增加到第二速率。在检测到随后的衰减减小之后，频率可以降低到第三速率。

4. 发明授权

US09125572B2 Grated collimation system for computed tomography 有权
标题翻译：用于计算机断层扫描的光栅准直系统
公开(公告)号：US09125572B2
公开(公告)日：2015-09-08
申请号：US13531472
申请日：2012-06-22
申请人： Frederic Noo , Dominic Heuscher
发明人： Frederic Noo , Dominic Heuscher
IPC分类号： A61B6/06 , G21K1/04 , A61B6/03 , A61B6/00 , A61B6/02 , G21K1/02
CPC分类号： A61B6/4035 , A61B6/027 , A61B6/032 , A61B6/06 , A61B6/469 , A61B6/481 , A61B6/488 , A61B6/507 , A61B6/5205 , A61B6/542 , G21K1/025
摘要： A collimator for a computed tomography imaging device can include first and second leaves positioned on opposing sides of a primary radiation delivery window. The first and second leaves can include first and second gratings having a plurality of attenuating members with a plurality of secondary radiation delivery windows extending between adjacent attenuating members.
摘要翻译：用于计算机断层摄影成像装置的准直器可以包括位于主辐射递送窗口的相对侧上的第一和第二叶片。第一和第二叶片可以包括具有多个衰减构件的第一和第二光栅，多个衰减构件具有在相邻衰减构件之间延伸的多个第二辐射递送窗口。

5. 发明申请

US20130343513A1 GRATED COLLIMATION SYSTEM FOR COMPUTED TOMOGRAPHY 有权
标题翻译：用于计算机图像的GRATED COLLIMATION系统
公开(公告)号：US20130343513A1
公开(公告)日：2013-12-26
申请号：US13531472
申请日：2012-06-22
申请人： Frederic Noo , Dominic Heuscher
发明人： Frederic Noo , Dominic Heuscher
IPC分类号： G21K1/02 , A61B6/03
CPC分类号： A61B6/4035 , A61B6/027 , A61B6/032 , A61B6/06 , A61B6/469 , A61B6/481 , A61B6/488 , A61B6/507 , A61B6/5205 , A61B6/542 , G21K1/025
摘要： A collimator for a computed tomography imaging device can include first and second leaves positioned on opposing sides of a primary radiation delivery window. The first and second leaves can include first and second gratings having a plurality of attenuating members with a plurality of secondary radiation delivery windows extending between adjacent attenuating members.
摘要翻译：用于计算机断层摄影成像装置的准直器可以包括位于主辐射递送窗口的相对侧上的第一和第二叶片。第一和第二叶片可以包括具有多个衰减构件的第一和第二光栅，多个衰减构件具有在相邻衰减构件之间延伸的多个第二辐射递送窗口。

6. 发明授权

US09198626B2 Dynamic power control of computed tomography radiation source 有权
标题翻译：计算机断层摄影辐射源的动态功率控制
公开(公告)号：US09198626B2
公开(公告)日：2015-12-01
申请号：US13531475
申请日：2012-06-22
申请人： Dominic Heuscher , Frederic Noo
发明人： Dominic Heuscher , Frederic Noo
IPC分类号： A61B6/03 , A61B6/00 , A61B6/06
CPC分类号： A61B6/032 , A61B6/06 , A61B6/481 , A61B6/482 , A61B6/488 , A61B6/507 , A61B6/54 , A61B6/541 , A61B6/542
摘要： A method of contrast-enhanced computed tomography (CT) imaging can include repeatedly scanning a target region an applied power during a session. The applied power can be a first power for a first scan. After the first scan, the applied power for each of a plurality of scans can be selected based on an algorithm. The algorithm can be based on, for example, the attenuation indicated from a preceding scan in the session.
摘要翻译：对比度增强计算机断层摄影（CT）成像的方法可以包括在会话期间重复扫描目标区域施加的功率。所施加的功率可以是用于第一次扫描的第一功率。在第一扫描之后，可以基于算法来选择多个扫描中的每一个的所施加的功率。该算法可以基于例如在会话中从先前扫描指示的衰减。

7. 发明申请

US20060159220A1 Computed tomograhpy with large gantry bore 有权
标题翻译：具有大型龙门孔的计算机断层扫描
公开(公告)号：US20060159220A1
公开(公告)日：2006-07-20
申请号：US10564715
申请日：2004-07-12
申请人： Dominic Heuscher
发明人： Dominic Heuscher
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
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°.
摘要翻译：计算机断层摄影扫描器包括限定检查区域（16）的旋转台架（20）。第一辐射源（22）设置在旋转台架（20）上并且将第一辐射（32）发射到检查区域（16）中。第二辐射源（24）设置在旋转台架（20）上并将第二辐射（36）发射到检查区域（16）中。第二辐射源（24）围绕台架与第一辐射源（22）成角度地间隔开。第一辐射检测器（30,30'）接收第一辐射（32）。第一辐射检测器（30,30'）的中心围绕台架与第一辐射源（22）成角度地间隔小于180°。第二辐射检测器（34）接收第二辐射（36）。第二辐射检测器（34）的中心围绕机架与第二辐射源（24）成角度地间隔小于180°。

8. 发明申请

US20070140411A1 Computer tomography method for periodically moving objects 有权
标题翻译：用于定期移动物体的计算机断层摄影方法
公开(公告)号：US20070140411A1
公开(公告)日：2007-06-21
申请号：US10596151
申请日：2004-11-26
申请人： Robert Manzke , Dominic Heuscher , Michael Grass
发明人： Robert Manzke , Dominic Heuscher , Michael Grass
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/541 , A61B5/0456 , A61B5/1135 , A61B6/027 , A61B6/032 , A61B6/503 , A61B6/504 , G01N23/046 , G01N2223/419 , G06T11/005 , G06T2211/412 , Y10S378/901
摘要： The invention relates to a computer tomography method, in which a periodically moving object, especially a heart, is irradiated by a beam bundle. In that process, intermediate images of one and the same subregion of the object are reconstructed using measured values from time intervals from different periods. That is, in each case exactly one period can be allocated to each intermediate image. The time intervals in the individual periods are adjusted in such a way that, after a reconstruction of the intermediate images using measured values that lie in the adjusted time intervals, a similarity measure applied to the intermediate images of the same subregion is minimized. This method can be applied to one, several or all subregions of the object that are reconstructable using measured values from time intervals from different periods. Finally, a computer tomography image is reconstructed, wherein exclusively measured values from the adjusted time intervals are used.
摘要翻译：本发明涉及一种计算机断层摄影方法，其中周期性移动的物体，特别是心脏被束束照射。在该过程中，使用来自不同周期的时间间隔的测量值重建对象的一个和相同子区域的中间图像。也就是说，在每种情况下，可以将一个周期分配给每个中间图像。调整各个周期中的时间间隔，使得在使用位于调整时间间隔中的测量值重建中间图像之后，应用于相同子区域的中间图像的相似性度量被最小化。可以使用来自不同周期的时间间隔的测量值将该方法应用于可重构的对象的一个，几个或所有子区域。最后，重建计算机断层摄影图像，其中使用来自经调整的时间间隔的专用测量值。

9. 发明申请

US20060133562A1 System and method for exact image reconstruction for helical cone beam computed tomography including redundant data 失效
标题翻译：包括冗余数据的螺旋锥束计算机断层扫描精确图像重建的系统和方法
公开(公告)号：US20060133562A1
公开(公告)日：2006-06-22
申请号：US10545201
申请日：2004-02-09
申请人： Dominic Heuscher , Kevin Brown
发明人： Dominic Heuscher , Kevin Brown
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/416
摘要： A conebeam computed tomography scanner (10) acquires conebeam projection data along a generally helical source trajectory around an examination region (14). An exact reconstruction processor (40) includes a convolution processor (42) and an aperture weighted backprojection processor (46, 66). The convolution processor (42) performs at least one convolution of the acquired projection data. The convolving operates on projection data falling within an exact reconstruction window (38) and on at least some redundant projection data falling outside the exact reconstruction window (38) to produce convolved projection data. The aperture-weighted backprojection processor (46, 66) performs aperture-weighted backprojecting of the convolved projection data using an aperture weighting function that weightedly combines at least some convolved redundant projection data with convolved projection data falling within the exact reconstruction window (38) to generate a reconstructed image with contributions from redundant projection data.
摘要翻译：锥束计算机断层摄影扫描器（10）沿着围绕检查区域（14）的大致螺旋状的源轨迹获取锥束投影数据。精确重建处理器（40）包括卷积处理器（42）和孔径加权反投影处理器（46,66）。卷积处理器（42）执行所获取的投影数据的至少一个卷积。所述卷积对落在精确重构窗口（38）内的投影数据和落在精确重建窗口（38）之外的至少一些冗余投影数据进行操作以产生卷积投影数据。孔径加权反投影处理器（46,66）使用孔径加权函数来执行卷积投影数据的孔径加权反投影，所述孔径加权函数将至少一些卷积的冗余投影数据与落在精确重建窗口（38）内的卷积投影数据加权地组合到生成具有来自冗余投影数据的贡献的重建图像。

10. 发明授权

US09259191B2 Dynamic collimation for computed tomography 有权
标题翻译：计算机断层扫描的动态准直
公开(公告)号：US09259191B2
公开(公告)日：2016-02-16
申请号：US13531468
申请日：2012-06-22
申请人： Frederic Noo , Dominic Heuscher
发明人： Frederic Noo , Dominic Heuscher
IPC分类号： A61B6/00 , A61B6/03 , G21K1/02 , A61B6/06 , A61B6/02
CPC分类号： A61B6/032 , A61B6/027 , A61B6/06 , A61B6/481 , A61B6/507 , A61B6/54 , A61B6/547 , G21K1/02
摘要： A collimator for a computed tomography imaging device can include first and second leaves positioned on and bounding opposing sides of a radiation delivery window. The first and second leaves can be movable to adjust at least one of a size or a location of the primary radiation delivery window relative a the radiation source in a direction non-parallel to an axis of rotation of the radiation source.
摘要翻译：用于计算机断层成像装置的准直器可以包括位于辐射递送窗口的相对侧上并且包围辐射递送窗口的相对侧的第一和第二叶片。第一和第二叶片可以是可移动的，以便在与辐射源的旋转轴线不平行的方向上相对于辐射源调节主辐射递送窗口的尺寸或位置中的至少一个。

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