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1. 发明授权

US06670614B1 Volume cone beam acquisition on a nuclear spect system using a digital flat panel 有权
标题翻译：在使用数字平板的核子系统上进行体积锥形束采集
公开(公告)号：US06670614B1
公开(公告)日：2003-12-30
申请号：US09873012
申请日：2001-06-01
申请人： Leonard F. Plut , Gerhard P. Roos , Andrew J. Ivan, Jr. , Frank C. Valentino
发明人： Leonard F. Plut , Gerhard P. Roos , Andrew J. Ivan, Jr. , Frank C. Valentino
IPC分类号： G01T1166
CPC分类号： G01T1/1648 , A61B6/037
摘要： A diagnostic imaging system includes a rotating gantry (16; 216) which defines a subject receiving aperture (18; 218). A rotatable source of high energy penetrating radiation (20; 220) and a corresponding two-dimensional flat panel x-ray detector (26; 226) are disposed across the subject receiving aperture (18; 218). A plurality of nuclear detector heads (40a , 40b; 240a-240c) are movably attached to the rotating gantry (16; 216) in order to detect radiation emitted by a radiopharmaceutical injected into the subject (12; 212). Each of the nuclear detector heads (40a, 40b; 240a-240c) within the system includes a variable radiation shield (42a, 42b) disposed adjacent a radiation receiving face on the detector head. The diagnostic imaging system may be operated in a fluoroscopic/radiographic mode in which an isocentric x-ray beam strikes the center of the detector surface or in a volume imaging mode.
摘要翻译：诊断成像系统包括限定受试者接收孔（18; 218）的旋转机架（16; 216）。可旋转的高能穿透辐射源（20; 220）和相应的二维平板x射线探测器（26; 226）横跨对象接收孔（18; 218）设置。多个核检测器头（40a，40b; 240a-240c）可移动地附接到旋转机架（16; 216），以便检测注入到被检体（12; 212）中的放射性药物发射的辐射。系统内的每个核探测器头（40a，40b; 240a-240c）包括邻近检测器头上的辐射接收面设置的可变辐射屏蔽（42a，42b）。诊断成像系统可以在其中等角x射线束撞击检测器表面的中心或以体积成像模式的荧光透视/射线照相模式下操作。

2. 发明授权

US06431751B1 Ceiling mounted, transportable, surgical C-arm with flat panel image receptor 失效
标题翻译：天花板安装，可运输，手术C型臂与平板图像受体
公开(公告)号：US06431751B1
公开(公告)日：2002-08-13
申请号：US09664506
申请日：2000-09-18
申请人： Dennis K. Everett , Leonard F. Plut , Donald E. Negrelli , John A. Shovary , William C. Widlicka
发明人： Dennis K. Everett , Leonard F. Plut , Donald E. Negrelli , John A. Shovary , William C. Widlicka
IPC分类号： H05G102
CPC分类号： A61B6/4464 , A61B6/4233 , A61B6/4405 , A61B6/4411 , A61B6/467 , H05G1/02
摘要： A diagnostic imaging system with a C-arm (12) for supporting an x-ray source (28) and a flat panel image receptor (30). The C-arm further including a coupler (36) that permits the C-arm (12) to be removably attached to different ceiling-mounted support structures (16), and to a mobile cart (92) for mobile C-arm imaging applications. A transport cart (62) is provided to transport the C-arm (12) from a first operating room to a second operating room. A mobile equipment cart (56) can accompany the transport cart (62). Alternately, a central control facility (72) can provide command and control signals for the C-arm.
摘要翻译：一种具有用于支撑x射线源（28）和平板图像受体（30）的C形臂（12）的诊断成像系统。 C形臂还包括允许C形臂（12）可拆卸地连接到不同的天花板安装的支撑结构（16）的耦合器（36），以及用于移动C臂成像应用的移动推车（92）。提供运送车（62）以将C形臂（12）从第一手术室运送到第二手术室。移动设备车（56）可以与运送车（62）一起。或者，中央控制设备（72）可以为C臂提供命令和控制信号。

3. 发明授权

US4910592A Radiation imaging automatic gain control 失效
标题翻译：辐射成像自动增益控制
公开(公告)号：US4910592A
公开(公告)日：1990-03-20
申请号：US143629
申请日：1988-01-13
申请人： Robert E. Shroy, Jr. , Leonard F. Plut , David Nicolay , Louis A. Paradiso , Charles G. Cassudakis
发明人： Robert E. Shroy, Jr. , Leonard F. Plut , David Nicolay , Louis A. Paradiso , Charles G. Cassudakis
IPC分类号： H04N5/243 , H04N5/32 , H05G1/64
CPC分类号： H04N5/32 , H04N5/243 , H05G1/64
摘要： An x-ray imaging system incorporating a television imaging chain is disclosed. The system includes automatic gain control circuitry, operable upon the video signal produced by the camera of the television imaging chain. The gain control circuitry affords automatic gain control capability for increasing the video gain in response to an undesired decrease in video output signal level. The gain control circuitry, however, is constrained in that it includes circuitry for establishing a minimum video gain which is always maintained during a study, irrespective of increases in brightness of an overall sample window area of the image, which could otherwise cause undesirable darkening of areas of interest in the image when the sample window also includes uninteresting structure which happens to exhibit a bright field.
摘要翻译：公开了一种包含电视成像链的X射线成像系统。该系统包括自动增益控制电路，可根据由电视成像链的照相机产生的视频信号进行操作。增益控制电路提供自动增益控制能力，以响应于视频输出信号电平的不期望的降低而增加视频增益。然而，增益控制电路被限制在于，其包括用于建立在研究期间始终保持的最小视频增益的电路，而不管图像的整体采样窗口区域的亮度增加，否则可能导致不期望的变暗当样本窗口还包括恰好呈现亮场的不感兴趣的结构时，图像中的感兴趣区域。

4. 发明授权

US6031888A Fluoro-assist feature for a diagnostic imaging device 失效
公开(公告)号：US6031888A
公开(公告)日：2000-02-29
申请号：US979571
申请日：1997-11-26
申请人： Andrew J. Ivan , Leonard F. Plut , Joseph S. Deucher , Pieter Gerhard Roos , Kenneth L. Freeman , Marc Piscitelli , Dennis K. Everett
发明人： Andrew J. Ivan , Leonard F. Plut , Joseph S. Deucher , Pieter Gerhard Roos , Kenneth L. Freeman , Marc Piscitelli , Dennis K. Everett
IPC分类号： G01B15/00 , A61B6/00 , A61B6/03 , H04N7/18 , G01N23/00
CPC分类号： A61B6/4441 , A61B6/4464
摘要： A frame (A) of a diagnostic imaging device such as a CT scanner or an MRI device has a bore defining a patient examination region (12). A first x-ray source (B) is mounted to a frame (C) for rotation around the examination region (12). An arc of first radiation detectors (14) detects x-rays which have traversed the examination region. A first image reconstruction processor (18) reconstructs a tomographic image representation from signals generated by the first radiation detectors. A fluoroscopy device (D) is mechanically coupled to the diagnostic scanner for generating and displaying at least substantially real-time fluoroscopic projection image representations on a display monitor (60). A second x-ray source (32) transmits x-rays to an amorphous silicon flat panel radiation detector (36). A second image reconstruction processor (58) reconstructs the fluoroscopic projection image representations from signals generated by the flat panel radiation detector (36). A C-arm (30) supports the second x-ray source (32) and the flat panel radiation detector (36) in a plane offset from a plane of the C-arm. A movable mounting structure (E) is mechanically connected with the gantry (A) and the C-arm (30) to move the C-arm between a stored position and an operating position adjacent the bore.

5. 发明授权

US5058148A Television camera control in radiation imaging 失效
标题翻译：电视摄像机控制辐射成像
公开(公告)号：US5058148A
公开(公告)日：1991-10-15
申请号：US220508
申请日：1988-07-18
申请人： Leonard F. Plut , David Nicolay
发明人： Leonard F. Plut , David Nicolay
IPC分类号： H04N5/32
CPC分类号： H04N5/32
摘要： Improved apparatus, circuitry and method is disclosed for control of a television camera in a radiographic imaging system. The system includes a radiation source, an image intensifier tube and several associated components for acquiring analog radiation representing images in one or more of several prime analog study modes. The analog acquisition components include any one or a combination of a cine camera, a spot film camera and a spot film device. Radiation is directed from the source through a subject to the intensifier tube input and to selected analog acquisition components. As the analog images are acquired, a television camera views the image tube output to produce another image, by way of a monitor, in verification that the radiation exposure is of a character suitable for the selected analog image acquisition mode. Sets of representations of camera operating parameter value decisions are stored in non-volatile random access memory circuitry coupled to the camera. Each set of representations corresponds to a different analog study mode, or combination of modes. Means is provided for selection of one or a combination of analog study modes. In response to that selection, the corresponding set of camera operating parameter decision respresentations is applied to the camera, in order to optimize camera performance for the particular x-ray mode, or combination of modes, which has been selected. In another embodiment, apparatus and circuitry is provided for suppressing the camera video signal in response to a selection of a predetermined video camera scan rate, while maintaining transmission of synchronization signals from the camera to the monitor.
摘要翻译：公开了改进的装置，电路和方法来控制放射线照相成像系统中的电视摄像机。该系统包括辐射源，图像增强管和几个相关联的组件，用于采集表示几种主要模拟研究模式中的一种或多种的图像的模拟辐射。模拟采集部件包括电影照相机，点胶片照相机和点胶片装置中的任何一种或组合。辐射从源通过对象引导到增压管输入和选择的模拟采集部件。当获取模拟图像时，电视摄像机通过监视器来观察图像管输出以产生另一图像，以验证辐射曝光是适合所选模拟图像采集模式的字符。相机操作参数值决定的表示集存储在耦合到相机的非易失性随机存取存储器电路中。每组表示对应于不同的模拟研究模式或模式的组合。提供了用于选择模拟学习模式中的一种或组合的手段。响应于该选择，将相应的摄像机操作参数决定表示集合应用于摄像机，以便优化已经选择的特定X射线模式或模式组合的相机性能。在另一个实施例中，提供了装置和电路，用于响应于对预定摄像机扫描速率的选择来抑制摄像机视频信号，同时保持从摄像机到监视器的同步信号的传输。

6. 发明授权

US4802002A Television camera control in radiation imaging 失效
标题翻译：电视摄像机控制辐射成像
公开(公告)号：US4802002A
公开(公告)日：1989-01-31
申请号：US050727
申请日：1987-05-15
申请人： Leonard F. Plut , David Nicolay
发明人： Leonard F. Plut , David Nicolay
IPC分类号： H04N5/32
CPC分类号： H04N5/32
摘要： A medical diagnostic television imaging system is disclosed having an x-ray source, an image intensifier tube and a video camera positioned to view the output face of the image tube. A monitor is coupled to receive video and synchronization signals from the camera. Means is associated with the video camera for controlling the camera to scan at a selected one of a plurality of scan rate formats. Circuitry is provided for suppressing the delivery of video to the monitor in response to the selection of at least one of the plurality of scan rates. During video suppression, transmission of synchronization signals to the monitor continues.
摘要翻译：公开了一种医疗诊断电视成像系统，其具有x射线源，图像增强管和定位成观察图像管的输出面的摄像机。耦合监视器以从相机接收视频和同步信号。装置与摄像机相关联，用于控制相机以选定的多种扫描速率格式扫描。提供电路以响应于对多个扫描速率中的至少一个的选择来抑制视频传送到监视器。在视频抑制期间，继续向监视器发送同步信号。

7. 发明授权

US4677477A Television camera control in radiation imaging 失效
标题翻译：电视摄像机控制辐射成像
公开(公告)号：US4677477A
公开(公告)日：1987-06-30
申请号：US763914
申请日：1985-08-08
申请人： Leonard F. Plut , David Nicolay
发明人： Leonard F. Plut , David Nicolay
IPC分类号： H04N7/18 , A61B6/00 , H04N5/32
CPC分类号： H04N5/32
摘要： Improved apparatus, circuitry and method is disclosed for control of a television camera in a radiographic imaging system. The system includes a radiation source, an image intensifier tube and several associated components for acquiring analog radiation representing images in one or more of several prime analog study modes. The analog acquisition components include any one or a combination of a cine camera, a spot film camera and a spot film device. Radiation is directed from the source through a subject to the intensifier tube input and to selected analog acquisition components. As the analog images are acquired, a television camera views the image tube output to produce another image, by way of a monitor, in verification that the radiation exposure is of a character suitable for the selected analog image acquisition mode. Sets of representations of camera operating parameter value decisions are stored in non-volatile random access memory circuitry coupled to the camera. Each set of representations corresponds to a different analog study mode, or combination of modes. Means is provided for selection of one or a combination of analog study modes. In response to that selection, the corresponding set of camera operating parameter decision representations is applied to the camera, in order to optimize camera performance for the particular x-ray mode, or combination of modes, which has been selected. In another embodiment, apparatus and circuitry is provided for suppressing the camera video signal in response to a selection of a predetermined video camera scan rate, while maintaining transmission of synchronization signals from the camera to the monitor.
摘要翻译：公开了改进的装置，电路和方法来控制放射线照相成像系统中的电视摄像机。该系统包括辐射源，图像增强管和几个相关联的组件，用于采集表示几种主要模拟研究模式中的一种或多种的图像的模拟辐射。模拟采集部件包括电影照相机，点胶片照相机和点胶片装置中的任何一种或组合。辐射从源通过对象引导到增压管输入和选择的模拟采集部件。当获取模拟图像时，电视摄像机通过监视器来观察图像管输出以产生另一图像，以验证辐射曝光是适合所选模拟图像采集模式的字符。相机操作参数值决定的表示集存储在耦合到相机的非易失性随机存取存储器电路中。每组表示对应于不同的模拟研究模式或模式的组合。提供了用于选择模拟学习模式中的一种或组合的手段。响应于该选择，将相应的相机组操作参数决定表示应用于相机，以便优化针对特定x射线模式或已选择的模式组合的相机性能。在另一个实施例中，提供了装置和电路，用于响应于对预定摄像机扫描速率的选择来抑制摄像机视频信号，同时保持从摄像机到监视器的同步信号的传输。

8. 发明授权

US06364526B2 Fluoro-assist feature for a diagnostic imaging device 失效
标题翻译：用于诊断成像设备的氟辅助功能
公开(公告)号：US06364526B2
公开(公告)日：2002-04-02
申请号：US09480514
申请日：2000-01-10
申请人： Andrew J. Ivan , Leonard F. Plut , Joseph S. Deucher , Pieter Gerhard Roos , Kenneth L. Freeman , Marc Piscitelli , Dennis K. Everett
发明人： Andrew J. Ivan , Leonard F. Plut , Joseph S. Deucher , Pieter Gerhard Roos , Kenneth L. Freeman , Marc Piscitelli , Dennis K. Everett
IPC分类号： H05G164
CPC分类号： A61B6/4441 , A61B6/4464
摘要： A frame (A) of a diagnostic imaging device such as a CT scanner or an MRI device has a bore defining a patient examination region (12). A first x-ray source (B) is mounted to a frame (C) for rotation around the examination region (12). An arc of first radiation detectors (14) detects x-rays which have traversed the examination region. A first image reconstruction processor (18) reconstructs a tomographic image representation from signals generated by the first radiation detectors. A fluoroscopy device (D) is mechanically coupled to the diagnostic scanner for generating and displaying at least substantially real-time fluoroscopic projection image representations on a display monitor (60). A second x-ray source (32) transmits x-rays to an amorphous silicon flat panel radiation detector (36). A second image reconstruction processor (58) reconstructs the fluoroscopic projection image representations from signals generated by the flat panel radiation detector (36). A C-arm (30) supports the second x-ray source (32) and the flat panel radiation detector (36) in a plane offset from a plane of the C-arm. A movable mounting structure (E) is mechanically connected with the gantry (A) and the C-arm (30) to move the C-arm between a stored position and an operating position adjacent the bore.
摘要翻译：诸如CT扫描仪或MRI装置的诊断成像装置的框架（A）具有限定了患者检查区域（12）的孔。第一x射线源（B）安装到框架（C）上以围绕检查区域（12）旋转。第一辐射检测器（14）的弧线检测穿过检查区域的X射线。第一图像重建处理器（18）从由第一辐射探测器产生的信号重建断层图像表示。荧光透视装置（D）机械耦合到诊断扫描器，用于在显示监视器（60）上产生和显示至少基本上实时的透视投影图像表示。第二x射线源（32）将x射线透射到非晶硅平板辐射探测器（36）。第二图像重构处理器（58）根据由平板辐射检测器（36）产生的信号重建荧光透视投影图像表示。 C臂（30）在与C形臂的平面偏移的平面中支撑第二x射线源（32）和平板辐射探测器（36）。可移动的安装结构（E）与机架（A）和C形臂（30）机械连接，以将C形臂移动到存储位置和邻近孔的操作位置之间。

9. 发明授权

US06236708B1 2D and 3D tomographic X-ray imaging using flat panel detectors 失效
标题翻译：使用平板检测器的2D和3D断层摄影X射线成像
公开(公告)号：US06236708B1
公开(公告)日：2001-05-22
申请号：US09200652
申请日：1998-11-25
申请人： Zhongmin Lin , Donald E. Negrelli , Leonard F. Plut , Jerome J. Griesmer
发明人： Zhongmin Lin , Donald E. Negrelli , Leonard F. Plut , Jerome J. Griesmer
IPC分类号： G01N2300
CPC分类号： A61B6/025
摘要： A penetrating radiation source (14) is disposed on one side of a object (10) which is on a object support (12). A flat panel radiation detector (18) is stationarily disposed on the opposite side of the object (10) than the source (14). A moving system (16, 50, 52) moves the source (14) with respect to the object (10). In each position (Xi, Yi, Zi) of the source (14) a center ray of the x-ray beam strikes the detector (18) at a corresponding location (xi, yi, 0). For each position (Xi, Yi, Zi) of the source (14), the image (xi, yi, 0) of an object located on a focal plane offsets by a vector displacement (Di) relative to a reference position (xo, yo, zo) of the image when the source is at (X0, Y0, Z0). A processor (28) shifts and interpolates each view by the different vector displacements corresponding to each of the focal planes (L1, L2, . . . ) and integrates the images to generate a series of slice image representations which are stored in a volume image memory (30). In this manner, by adjusting the view offset by an amount corresponding to each of the focal planes, (L1, L2, . . . ) the same data set is used to generate all of the slices of the resultant volume image.
摘要翻译：穿透辐射源（14）设置在物体（10）的位于物体支撑体（12）上的一侧。平板辐射检测器（18）固定地设置在物体（10）的与源（14）相对的相对侧上。移动系统（16,50,52）相对于物体（10）移动源（14）。在源（14）的每个位置（Xi，Yi，Zi）中，x射线束的中心射线在相应的位置（xi，yi，0）处撞击检测器（18）。对于源（14）的每个位置（Xi，Yi，Zi），位于焦平面上的物体的图像（xi，yi，0）相对于参考位置（xo，源（X0，Y0，Z0）处的图像的哟，zo）。处理器（28）通过与每个焦平面（L1，L2 ...）相对应的不同矢量位移移动和内插每个视图，并且对图像进行积分以产生存储在卷图像中的一系列切片图像表示记忆（30）。以这种方式，通过将视点偏移量调整与每个焦平面（L1，L2 ...）对应的量，使用相同的数据集来产生所得体积图像的所有切片。

10. 发明授权

US06222902B1 Real-time tomographic system with flat panel detectors 失效
标题翻译：具有平板检测器的实时断层摄影系统
公开(公告)号：US06222902B1
公开(公告)日：2001-04-24
申请号：US09200651
申请日：1998-11-25
申请人： Zhongmin Lin , Leonard F. Plut , Timothy J. Crish
发明人： Zhongmin Lin , Leonard F. Plut , Timothy J. Crish
IPC分类号： G01N2300
CPC分类号： A61B6/032
摘要： An object (14) is positioned on an object support (16). A radiation source (10) projects a beam of radiation through a region of interest (12) of the object. A plurality of focal planes (F1, F2, . . . , Fn) mark the center of selected slice images through the region of interest. A gantry (20) rotates the radiation source (10) around a circular trajectory (22) as an encoder (26) monitors a radius (r) of the trajectory and an angular position (&phgr;) of the radiation source (10) around the trajectory (22). A look-up table (40) is addressed with the selected focal plane(s) (F1, F2, . . . , Fn) and (r, &phgr;) to generate a correction or shift value (S1, . . . , Sn.) for each selected focal plane (F1, F2, . . . , Fn). A flat panel detector (18) is read out a plurality of times to generate a plurality of electronic data views as the radiation source rotates. Each view is corrected with a corresponding correction or shift value and integrated in a summation circuit (50) with preceding views to generate an image representation of the slice(s) through the selected focal plane(s) (F1, F2, . . . , Fn) or a 3D volume. The slice image or 3D volume image representation is converted into a human-readable display (56) substantially in real-time, e.g., each time a preselected number of views has been summed.
摘要翻译：物体（14）位于物体支撑件（16）上。辐射源（10）将辐射束投射到物体的感兴趣区域（12）。多个焦平面（F1，F2，...，Fn）通过感兴趣的区域标记所选切片图像的中心。当编码器（26）监测轨迹的半径（r）和辐射源（10）周围的轨迹的角位置（phi）时，台架（20）围绕圆形轨迹（22）旋转辐射源（10）轨迹（22）。使用所选择的焦平面（F1，F2，...，Fn）和（r，phi）寻址查找表（40）以产生校正或移位值（S1，...，Sn 。）对于每个选定的焦平面（F1，F2，...，Fn）。读出多个平板检测器（18），以在辐射源旋转时产生多个电子数据视图。每个视图用对应的校正或移位值进行校正，并且被积分在具有前面视图的求和电路（50）中，以通过所选择的焦平面（F1，F2，...）生成切片的图像表示。，Fn）或3D体积。切片图像或3D体积图像表示基本上实时地被转换成人类可读显示器（56），例如每次预选的视图数量被相加时。

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