公开(公告)号：US06215842B1

公开(公告)日：2001-04-10

申请号：US09132800

申请日：1998-08-13

Applicant: Theodore A. Resnick ,  Rodney A. Mattson

Inventor： Theodore A. Resnick ,  Rodney A. Mattson

IPC: H05G134

CPC classification number: H05G1/32

Abstract: An x-ray radiation stabilization system is provided including an x-ray tube (20) which emits x-ray radiation (22). The x-ray tube (20) has an anode (52), a cathode (50), and a vacuum envelope (54) which houses the anode (52) and the cathode (50). A high-voltage generator (40) is connected to the x-ray tube (20). It supplies a high-voltage electric potential between the cathode (50) and anode (52) such that an electron beam flows therebetween. The electron beam strikes the anode (52) producing the x-ray radiation (22). A reference radiation detector (60) samples a representative portion of the x-ray radiation (22) emitted by the x-ray tube (20) and generates an error signal in response to an intensity of the sampled x-ray radiation (22). A feedback circuit (80) is connected between the reference radiation detector (60) and the high-voltage generator (40). The feedback circuit (80) processes the error signal and in response thereto directs the high-voltage generator (40) to adjust the high-voltage electric potential supplied to the x-ray tube (20) so that in the x-ray radiation (22) ripple having a predetermined frequency range is substantially canceled.

Abstract translation: 提供了包括发射x射线辐射（22）的X射线管（20）的X射线辐射稳定系统。 x射线管（20）具有阳极（52），阴极（50）和容纳阳极（52）和阴极（50）的真空外壳（54）。 高压发生器（40）连接到X射线管（20）。 它在阴极（50）和阳极（52）之间提供高电压电位，使得电子束在它们之间流动。 电子束撞击产生X射线辐射（22）的阳极（52）。 参考辐射检测器（60）对由X射线管（20）发射的X射线辐射（22）的代表部分进行采样，并响应于采样的X射线辐射（22）的强度产生误差信号， 。 在参考辐射检测器（60）和高压发生器（40）之间连接反馈电路（80）。 反馈电路（80）处理该误差信号，并响应于此引导高电压发生器（40）调节提供给X射线管（20）的高压电位，使得在x射线辐射 22）具有预定频率范围的波动基本上被消除。

公开(公告)号：US5493599A

公开(公告)日：1996-02-20

申请号：US300974

申请日：1994-09-06

Applicant: Rodney A. Mattson

Inventor： Rodney A. Mattson

IPC: H05G1/00 ,  A61B6/00 ,  A61B6/03 ,  A61B6/06 ,  G21K1/02 ,  H01J35/00 ,  H01J35/02 ,  H01J35/24 ,  H05G1/04 ,  H05G1/26 ,  H05G1/32 ,  H05G1/52 ,  H05G1/60 ,  H05G1/64

CPC classification number: H01J35/24 ,  A61B6/032 ,  A61B6/035 ,  A61B6/06 ,  A61B6/4028 ,  A61B6/4275 ,  A61B6/4488 ,  A61B6/56 ,  G21K1/025 ,  H01J35/02 ,  H05G1/025 ,  H05G1/04 ,  H05G1/26 ,  H05G1/32 ,  H05G1/52 ,  H05G1/60 ,  H05G1/64

Abstract: A toroidal x-ray tube (I) is supported and selectively positioned by a gantry (II). The x-ray tube includes a toroidal housing (A) in which a rotor (20) is rotatably mounted. One or more cathodes (C) are mounted on the rotor for generating an electron beam which strikes an anode (B) to generate a beam of x-rays which pass through a patient aperture (62) to strike a detector (60). The x-ray tube includes pre-collimators (70, 74) having slots (72, 76) for passage of the x-ray subsequent to generation thereof and prior to being collimated by the collimator (90). A ring collimator (90) collimates an x-rays formed into a fan shaped beam. The collimator (90) includes a first ring (92) and a second ring (94) which are concentric. The distance between the first and second rings (92, 94) is adjustable to adjust the slice thickness of the final image. The x-ray tube provides improved final images in that reduction of off-focal radiation occurs due to the utilization of pre-collimators and the collimation of x-rays is flexible due to adjustability of slice thickness.

Abstract translation: 环形X射线管（I）由机架（II）支撑并选择性定位。 X射线管包括其中转子（20）可旋转地安装在其中的环形壳体（A）。 一个或多个阴极（C）安装在转子上，用于产生撞击阳极（B）的电子束，以产生穿过患者孔（62）以撞击检测器（60）的X射线束。 X射线管包括具有用于x射线在其生成之后并且在被准直器（90）准直之前通过的狭槽（72,76）的准准直器（70,74）。 环准直器（90）使形成为扇形梁的X射线准直。 准直器（90）包括同心的第一环（92）和第二环（94）。 第一和第二环（92,94）之间的距离是可调节的，以调节最终图像的切片厚度。 X射线管提供改进的最终图像，因为由于使用预准直器而导致的非局部辐射的减少，并且由于切片厚度的可调性，x射线的准直是柔性的。

公开(公告)号：US5475729A

公开(公告)日：1995-12-12

申请号：US224958

申请日：1994-04-08

Applicant: Rodney A. Mattson ,  Theodore A. Resnick

Inventor： Rodney A. Mattson ,  Theodore A. Resnick

IPC: H05G1/02 ,  A61B6/00 ,  H01J35/24 ,  H05G1/04 ,  H05G1/26 ,  H05G1/32 ,  H05G1/64 ,  H01J35/04

CPC classification number: A61B6/4488 ,  A61B6/4028 ,  A61B6/56 ,  H01J35/24 ,  H05G1/04 ,  H05G1/26 ,  H05G1/32 ,  H05G1/64

Abstract: A toroidal x-ray tube (I) is supported and selectively positioned by a gantry (II). The x-ray tube includes a toroidal housing (A) in which a rotor (30) is rotatably mounted. One or more cathodes (C) are mounted on the rotor for generating an electron beam which strikes an anode (B) to generate a beam of x-rays which passes through a window (20) and strikes an annular ring of detectors (160). A grid bias control circuit (100) selectively applies a continuously adjustable bias to a grid (36) for regulating the electron current, hence the intensity of the x-ray beam. A scintillating optical fiber (110) extends around the exterior of the window. The scintillation optical fiber includes fluorescent dopant (116) which convert a very small fraction of the x-rays into optical light which is transmitted along the fibers to an opto-electric transducer (118). The opto-electric transducer is connected with the grid bias control circuit. The opto-electrical transducer (118) can also be connected with an intensity compensator (162) for adjusting the signals from the detector ring before they are reconstructed (164 ) into an image representation.

Abstract translation: 环形X射线管（I）由机架（II）支撑并选择性定位。 X射线管包括环形壳体（A），转子（30）可旋转地安装在壳体中。 一个或多个阴极（C）安装在转子上以产生撞击阳极（B）的电子束，以产生穿过窗口（20）并撞击检测器（160）的环形环的X射线束， 。 栅极偏置控制电路（100）选择性地向网格（36）施加连续可调的偏压，用于调节电子电流，因此调整X射线束的强度。 闪烁的光纤（110）围绕窗户的外部延伸。 闪烁光纤包括荧光掺杂剂（116），其将非常小部分的X射线转换成沿着光纤传输到光电换能器（118）的光学光。 光电传感器与电网偏置控制电路相连。 光电换能器（118）还可以与强度补偿器（162）连接，用于在将检测器环重建（164）之前将检测器环的信号调整成图像表示。

公开(公告)号：US5371778A

公开(公告)日：1994-12-06

申请号：US800242

申请日：1991-11-29

Applicant: Jeffrey H. Yanof ,  Rodney A. Mattson ,  Paula I. Patel

Inventor： Jeffrey H. Yanof ,  Rodney A. Mattson ,  Paula I. Patel

IPC: G06F3/033 ,  G06F3/048 ,  G06T17/00 ,  G06F15/42 ,  G06F15/62

CPC classification number: G06F3/04845 ,  G06T17/00 ,  Y10S128/922 ,  Y10S378/901

Abstract: A CT scanner (A) non-invasively examines a volumetric region of a subject and generates volumetric image data indicative thereof. An object memory (B) stores the data values corresponding to each voxel of the volume region. An affine transform algorithm (60) operates on the visible faces (24, 26, 28) of the volumetric region to translate the faces from object space to projections of the faces onto a viewing plane in image space. An operator control console (E) includes operator controls for selecting an angular orientation of a projection image of the volumetric region relative to a viewing plane, i.e. a plane of the video display (20). A cursor positioning trackball (90) inputs i- and j-coordinate locations in image space which are converted (92) into a cursor crosshair display (30) on the projection image (22). A depth dimension k between the viewing plane and the volumetric region in a viewing direction perpendicular to the viewing plane is determined (74). The (i,j,k) image space location of the cursor is operated upon by the reverse of the selected transform to identify a corresponding (x,y,z) cursor coordinate in object space. The cursor coordinate in object space is translated (100, 102,104) into corresponding addresses of the object memory for transverse, coronal, and sagittal planes (10, 12, 14) through the volumetric region.

Abstract translation: CT扫描仪（A）非侵入性地检查受检者的体积区域并产生指示其的体积图像数据。 对象存储器（B）存储对应于体积区域的每个体素的数据值。 仿射变换算法（60）对体积区域的可见面（24,26,28）进行操作，以将面部从对象空间转移到图像空间中的观察平面上。 操作员控制台（E）包括用于选择相对于观看平面（即，视频显示器（20）的平面）的体积区域的投影图像的角度定向的操作者控制。 光标定位轨迹球（90）将图像空间中的i和j坐标位置输入（92）转换成投影图像（22）上的光标十字准线显示（30）。 确定垂直于观察平面的观察方向的观察平面和体积区域之间的深度尺寸k（74）。 光标的（i，j，k）图像空间位置通过所选变换的相反操作，以识别对象空间中的对应（x，y，z）光标坐标。 对象空间中的光标坐标通过体积区域被翻译（100,102,104）到对象存储器的横向，冠状和矢状平面（10,12,14）的相应地址。

公开(公告)号：US5305363A

公开(公告)日：1994-04-19

申请号：US863182

申请日：1992-04-03

Applicant: James E. Burke ,  Lester Miller ,  Rodney A. Mattson ,  Carl J. Brunnett ,  Theodore A. Resnick

Inventor： James E. Burke ,  Lester Miller ,  Rodney A. Mattson ,  Carl J. Brunnett ,  Theodore A. Resnick

IPC: A61B6/00 ,  A61B6/03 ,  H01J35/02 ,  H01J35/06 ,  H01J35/10 ,  H01J35/16 ,  H01J35/24 ,  H05G1/06 ,  H05G1/08 ,  H05G1/20 ,  H05G1/26 ,  H05G1/34 ,  H05G1/52 ,  H05G1/60 ,  H05G1/66

CPC classification number: A61B6/035 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/4275 ,  A61B6/4488 ,  A61B6/482 ,  A61B6/56 ,  H01J35/02 ,  H01J35/06 ,  H01J35/10 ,  H01J35/165 ,  H01J35/24 ,  H05G1/06 ,  H05G1/08 ,  H05G1/20 ,  H05G1/26 ,  H05G1/34 ,  H05G1/52 ,  H05G1/60 ,  H05G1/66 ,  H01J2235/162 ,  H05G1/025

Abstract: A toroidal x-ray tube (I) is supported (II) for rotation about a horizontal axis (170), translation along a vertical axis (172), and translation along a horizontal axis (174). The x-ray tube includes a toroidal housing (A), an annular anode (B), and a cathode (0) which rotates a beam of electrons around the annular anode. A plurality of parallel connected voltage sources (90.sub.1, 90.sub.2, . . . , 90.sub.n) provide a sufficiently high bias voltage between the electron source and the anode that x-rays are generated. The x-ray beam passes through a compensator crystal (62), an annular window (20), a collimator (132), through a subject received in a central bore (26) of the x-ray tube, and impacts an arc segment of radiation detectors (130). The x-ray detectors are stationarily mounted outside of the plane of the annular window (FIGS. 2 and 7), nutate into the plane of the windows opposite of the origin of the x-ray beam (FIG. 6 ), rotate in part (FIG. 9 ) or rotate in full (FIG. 8 ) Angular position monitors (58, 154) determine the angular position of the cathode assembly, hence the x-ray beam, and the angular position of the detectors in the rotating detector embodiment.

Abstract translation: 环形X射线管（I）被支撑（II），用于围绕水平轴线（170）旋转，沿着垂直轴线（172）平移并且沿着水平轴线（174）平移。 X射线管包括环形壳体（A），环形阳极（B）和使电子束围绕环形阳极旋转的阴极（0）。 多个并联的电压源（901,902，...，90n）在产生x射线的电子源和阳极之间提供足够高的偏置电压。 x射线束穿过受体在X射线管的中心孔（26）中的受试者通过补偿晶体（62），环形窗（20），准直器（132），并且撞击弧段 的辐射探测器（130）。 X射线检测器固定地安装在环形窗的平面外（图2和7），并且朝向与X射线束原点相反的窗口的平面（图6）中，部分旋转 （图9）或完全旋转（图8）角位置监视器（58,154）确定阴极组件的角度位置，因此确定旋转检测器实施例中的X射线束和检测器的角位置 。

公开(公告)号：US5303148A

公开(公告)日：1994-04-12

申请号：US605372

申请日：1990-10-30

Applicant: Rodney A. Mattson ,  Todd J. Krochta ,  Heang K. Tuy

Inventor： Rodney A. Mattson ,  Todd J. Krochta ,  Heang K. Tuy

IPC: G06T11/00 ,  G06T17/00 ,  G06F15/40

CPC classification number: G06T11/006 ,  G06T17/00

Abstract: During surgery, a physician speaks commands that are received by a microphone (10). A speech processor (12) converts audio signals from the microphone into word signals. A command interpreter (14) compares each word signal with a list of previously authorized command words. When the word signal corresponds to one of the preselected command words, a corresponding command signal is generated and sent to a volume imager (18), a video recorder (20), a hard copy, printer (28), or other system component. The volume imager generates an image representation signal indicative of a portion of image data stored therein which is displayed on a video monitor (B) or recorded on the video recorder.

Abstract translation: 在手术过程中，医师说话由麦克风接收的命令（10）。 语音处理器（12）将来自麦克风的音频信号转换为字信号。 命令解释器（14）将每个字信号与先前授权的命令字的列表进行比较。 当字信号对应于预选命令字中的一个时，生成相应的命令信号并将其发送到卷成像器（18），录像机（20），硬拷贝，打印机（28）或其他系统组件。 体积成像器产生指示存储在其中的图像数据的一部分的图像表示信号，其显示在视频监视器（B）上或记录在录像机上。

公开(公告)号：US4672648A

公开(公告)日：1987-06-09

申请号：US791210

申请日：1985-10-25

Applicant: Rodney A. Mattson ,  Gordon D. DeMeester

Inventor： Rodney A. Mattson ,  Gordon D. DeMeester

IPC: G01N23/04 ,  A61B6/03 ,  G21K1/02 ,  G21K1/10 ,  H01J35/16

CPC classification number: A61B6/032 ,  G21K1/025

Abstract: An off-focal radiation collimator is disclosed which includes a plurality of radiation absorbing elements supported in spaced relationship with respect to one another in a housing such that each element is aligned along radii extending from the focal spot of a radiation source. The off-focal collimator is preferably disposed between the radiation source and a primary beam collimator. The off-focal collimator also acts as a radiation beam compensator. By varying the spatial density of the radiation absorbing elements by a function of location within the housing, the radiation beam can be shaped to any desired profile.

Abstract translation: 公开了一种非焦距辐射准直器，其包括在壳体中以彼此间隔开的关系支撑的多个辐射吸收元件，使得每个元件沿着从辐射源的焦点延伸的半径对准。 偏焦准直器优选地设置在辐射源和主光束准直仪之间。 离焦准直仪还用作辐射束补偿器。 通过根据壳体内部的位置改变辐射吸收元件的空间密度，辐射束可以被成形为任何所需的轮廓。

公开(公告)号：US08766199B2

公开(公告)日：2014-07-01

申请号：US13510168

申请日：2010-11-18

Applicant: Marc A. Chappo ,  Randall P. Luhta ,  Rodney A. Mattson

Inventor： Marc A. Chappo ,  Randall P. Luhta ,  Rodney A. Mattson

IPC: G01T1/02 ,  G01T7/00

CPC classification number: G01T7/005

Abstract: A detector tile (116) of an imaging system (100) includes a photosensor array (204) and electronics (208) electrically coupled to the photosensor array (204), wherein the electronics includes a dose determiner (402) that determines a deposited dose for the detector tile (116) and generates a signal indicative thereof. In one non-limiting instance, this signal is utilized to correct parameters such as gain and thermal coefficients, which may vary with radiation dose.

Abstract translation: 成像系统（100）的检测器瓦片（116）包括电耦合到光电传感器阵列（204）的光电传感器阵列（204）和电子器件（208），其中电子器件包括确定沉积剂量的剂量确定器（402） 用于检测器瓦片（116）并产生指示其的信号。 在一个非限制性实例中，该信号用于校正诸如增益和热系数之类的参数，其可随辐射剂量而变化。

公开(公告)号：US08532251B2

公开(公告)日：2013-09-10

申请号：US13319151

申请日：2010-04-15

Applicant: Randall P. Luhta ,  Marc A. Chappo ,  Brian E. Harwood ,  Rodney A. Mattson ,  Chris John Vrettos

Inventor： Randall P. Luhta ,  Marc A. Chappo ,  Brian E. Harwood ,  Rodney A. Mattson ,  Chris John Vrettos

IPC: A61B6/00

CPC classification number: A61B6/032 ,  A61B6/4241 ,  A61B6/4266 ,  A61B6/4452 ,  G01T1/1644 ,  G01T1/2985

Abstract: An imaging system (100) includes a radiation source (108) that emits radiation that traverses an examination region (106) and a detection system (114) that detects radiation that traverses the examination region (106) and generates a signal indicative thereof. The detection system (114) includes a first detector array (1141-114N) and a second detector array (1141-114N). The first and second detector arrays (1141-114N) are separately distinct detector arrays and at least one of the detector arrays (1141-114N) is moveable with respect to the radiation beam. A reconstructor (116) reconstructs the signal and generates volumetric image data indicative thereof.

Abstract translation: 成像系统（100）包括发射穿过检查区域（106）的辐射的辐射源（108）和检测穿过检查区域（106）的辐射并产生指示其的信号的检测系统（114）。 检测系统（114）包括第一检测器阵列（1141-114N）和第二检测器阵列（1141-114N）。 第一和第二检测器阵列（1141-114N）是分别不同的检测器阵列，并且检测器阵列（1141-114N）中的至少一个可相对于辐射束移动。 重构器（116）重建信号并产生指示其的体积图像数据。

公开(公告)号：US08525119B2

公开(公告)日：2013-09-03

申请号：US13319100

申请日：2010-04-14

Applicant: Randall P. Luhta ,  Rodney A. Mattson ,  Brian E. Harwood

Inventor： Randall P. Luhta ,  Rodney A. Mattson ,  Brian E. Harwood

IPC: G01T1/20

CPC classification number: G01T1/2985

Abstract: A radiation sensitive detector array includes a plurality of detector modules (118) extending along a z-axis direction and aligned along an x-axis direction with respect to the imaging system (100). At least one of the detector modules (118) includes a module backbone (124) and at least one detector tile (122). The at least one detector tile (122) is coupled to the module backbone (124) through a non-threaded fastener (142). The at least one detector tile (122) includes a two-dimensional detector (126) and a two-dimensional anti-scatter grid (128) that is focused at a focal spot (112) of an imaging system (100).

Abstract translation: 辐射敏感检测器阵列包括沿着z轴方向延伸并且相对于成像系统（100）沿x轴方向排列的多个检测器模块（118）。 检测器模块（118）中的至少一个包括模块主干（124）和至少一个检测器瓦片（122）。 至少一个检测器瓦片（122）通过非螺纹紧固件（142）联接到模块主干（124）。 至少一个检测器瓦片（122）包括聚焦在成像系统（100）的焦点（112）处的二维检测器（126）和二维防散射网格（128）。