公开(公告)号：US07667457B2

公开(公告)日：2010-02-23

申请号：US11615324

申请日：2006-12-22

Applicant: Anton M. Linz ,  Chang L. Kim ,  Jim L. Malaney ,  David L. McDaniel ,  Robert S. Stormont ,  Ricardo Becerra

Inventor： Anton M. Linz ,  Chang L. Kim ,  Jim L. Malaney ,  David L. McDaniel ,  Robert S. Stormont ,  Ricardo Becerra

IPC: G01V3/00

CPC classification number: G01R33/28 ,  G01R33/481 ,  G01T1/1603

Abstract: A gamma ray detector ring for a combined positron emission tomography (PET) and magnetic resonance imaging (MRI) system is integrated into a radio frequency (RF) coil assembly such that the detector ring is integrated with a RF shield. Each gamma ray detector in the detector ring includes a scintillator component that emits light when a gamma ray is detected and a photodetector component designed to be sensitive to the frequency of light produced by the scintillator. A RF shield may be integrated into a detector ring such that the RF shield is positioned between the scintillator and photodetector components of each detector, thereby saving valuable radial space within the imaging system. Multiple such detector rings may be located adjacent to one another to increase axial coverage and enable three-dimensional PET imaging techniques.

Abstract translation: 用于组合正电子发射断层摄影（PET）和磁共振成像（MRI）系统的伽马射线检测器环集成到射频（RF）线圈组件中，使得检测器环与RF屏蔽集成。 检测器环中的每个伽马射线检测器包括当检测到伽马射线时发光的闪烁体部件和设计成对由闪烁体产生的光的频率敏感的光检测器部件。 RF屏蔽可以集成到检测器环中，使得RF屏蔽物位于每个检测器的闪烁体和光电检测器部件之间，从而在成像系统内节省有价值的径向空间。 多个这样的检测器环可以彼此相邻放置以增加轴向覆盖并且能够进行三维PET成像技术。

公开(公告)号：US07667199B2

公开(公告)日：2010-02-23

申请号：US11284550

申请日：2005-11-22

Applicant: Mark David Fries

Inventor： Mark David Fries

IPC: G01T1/00 ,  G06F15/00 ,  G01J1/00 ,  G01T1/164

CPC classification number: G01R33/28

Abstract: A timing circuit for implementation in a medical imaging system such as a PET scanner, and a method of ascribing times to events in such systems, is disclosed. In one embodiment, the timing circuit includes an n-phase clock having n frequencies of operation, wherein the clock is selectable to provide n-signals that each vary at n frequencies, an n-phase counter including n counter elements coupled to the clock, an n-phase status detection circuit including n status circuits coupled to the n-phase clock, and an n-phase output circuit including n-registers coupled to the n-phase clock and respectively coupled to the n-phase counter and to n-phase status detection circuit, wherein n-registers respectively receive the n-clock signals, the n-count signals, and the n-status signals, respectively, and in response respectively provide n-output signals that collectively form an output signal indicative of a time at which the event detection signal experienced the first status change.

Abstract translation: 公开了一种用于在诸如PET扫描仪的医学成像系统中实现的定时电路，以及将这些系统中的事件归因于时间的方法。 在一个实施例中，定时电路包括具有n个工作频率的n相时钟，其中可选择时钟以提供每n个频率变化的n个信号，包括连接到时钟的n个计数元件的n相计数器， n相状态检测电路，包括与n相时钟相连的n个状态电路和n相输出电路，n相输出电路包括耦合到n相时钟并分别耦合到n相计数器和n- 相位状态检测电路，其中n个寄存器分别分别接收n个时钟信号，n个计数信号和n个状态信号，并且作为响应分别提供n个输出信号，它们共同形成表示一个 事件检测信号经历了第一状态改变的时间。

公开(公告)号：US07634303B2

公开(公告)日：2009-12-15

申请号：US11768531

申请日：2007-06-26

Applicant: Yvonne Candidus ,  Thorsten Feiweier ,  Wilhelm Horger ,  Jürgen Huber ,  Razvan Lazar ,  Melanie Schmitt ,  Lothar Schön

Inventor： Yvonne Candidus ,  Thorsten Feiweier ,  Wilhelm Horger ,  Jürgen Huber ,  Razvan Lazar ,  Melanie Schmitt ,  Lothar Schön

IPC: A61B5/05 ,  G01V3/00 ,  B23P17/04

CPC classification number: G01R33/28 ,  G01R33/34 ,  G01R33/5659 ,  Y10T29/49

Abstract: A dielectric element is formed of a dielectric material exhibiting a magnetic resonance relaxation time, with a relaxation agent incorporated in the dielectric material that reduces the relaxation time of the dielectric material. The dielectric element is adapted for placement on a subject while magnetic resonance data are acquired from the subject, and locally influences the B1 field distribution in the subject during the acquisition of magnetic resonance data.

Abstract translation: 电介质元件由表现出磁共振弛豫时间的电介质材料形成，并且电介质材料中包含减轻电介质材料弛豫时间的松弛剂。 介电元件适于放置在被摄体上，同时从受检者获取磁共振数据，并且在获取磁共振数据期间局部影响对象中的B1场分布。

公开(公告)号：US20090270723A1

公开(公告)日：2009-10-29

申请号：US12448166

申请日：2006-12-13

Applicant: Han-Joon Kim

Inventor： Han-Joon Kim

IPC: A61B5/05

CPC classification number: A61B6/145 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/583 ,  A61B90/39 ,  A61B2090/3954 ,  A61C1/084 ,  G01R33/28 ,  G01R33/58

Abstract: An inventive medical imaging marker includes two plate members (2a, 2b) of an imageable material, which respectively includes: two flat major surfaces (4a, 4b) located symmetrically about an intersection (7) of two orthogonal straight lines (5, 6); and two pairs of side surfaces (8a, 9a; 8b, 9b) disposed perpendicularly to the respective major surfaces (4a, 4b) with their boundary edges (5a, 6a; 5b, 6b) defined by at least parts of the straight lines (5, 6). With the use of the marker, an image can be easily and accurately correlated with an actual entity.

Abstract translation: 本发明的医学成像标记包括可成像材料的两个板构件（2a，2b），其分别包括：两个平行的主表面（4a，4b），其位于两个正交的直线（5,6）的交叉点（7）对称的位置， ; 以及两对垂直于各个主表面（4a，4b）的侧表面（8a，9a; 8b，9b），其边界边缘（5a，6a; 5b，6b）由至少部分直线 5，6）。 通过使用标记，图像可以容易且准确地与实际实体相关联。

公开(公告)号：US07501824B2

公开(公告)日：2009-03-10

申请号：US11763098

申请日：2007-06-14

Applicant: Hisashi Kawachi ,  Norifumi Ohgishi ,  Nobutaka Ito

Inventor： Hisashi Kawachi ,  Norifumi Ohgishi ,  Nobutaka Ito

IPC: G01V3/00 ,  H01Q1/42 ,  H01Q1/36

CPC classification number: G01R33/28

Abstract: With a view to shortening the cable laying time there is provided a magnetic resonance imaging apparatus for generating an image of a subject in accordance with a magnetic resonance signal received after application of a high-frequency magnetic field to the subject under a static magnetic field and a gradient magnetic field, the magnetic resonance imaging apparatus comprising a base, operating portions provided in the base and performing predetermined operations, such as a data collector and a controller, two pipes projecting from the base, and plural cables wound in the figure of 8 onto projecting portions of the two pipes projecting from the base, one end of the cables being connected electrically to the operating portions.

Abstract translation: 为了缩短电缆铺设时间，提供了一种磁共振成像装置，用于根据在静态磁场下向受试者施加高频磁场之后接收到的磁共振信号来产生对象的图像，并且 梯度磁场，所述磁共振成像装置包括基座，设置在基座中的操作部分，并且执行预定操作，例如数据采集器和控制器，从基座突出的两根管，以及在图8中缠绕的多根电缆 在从基座突出的两个管的突出部分上，电缆的一端电连接到操作部分。

公开(公告)号：US20090045812A1

公开(公告)日：2009-02-19

申请号：US12255282

申请日：2008-10-21

Applicant: Peter Staats ,  James E. Knipfer, II

Inventor： Peter Staats ,  James E. Knipfer, II

IPC: G01R33/28 ,  A61B5/055

CPC classification number: A61M5/14546 ,  A61M5/007 ,  G01R33/28

Abstract: A method of operation for a magnetic resonance imaging suite. A power supply of magnetic resonance injector system receives electrical power from an AC power outlet, both of which are located outside of a shielded room of the magnetic resonance imaging suite. Electrical power from the power supply of the magnetic resonance injector system is conveyed (via an appropriate power connection) into the shielded room of the magnetic resonance imaging suite and to a component (e.g., a power head) of the magnetic resonance injector system located inside the shielded room. While this electrical power is being conveyed, radio frequency energy emitted from the power connection is being filtered.

Abstract translation: 一种用于磁共振成像套件的操作方法。 磁共振注射器系统的电源从AC电源插座接收电力，两者均位于磁共振成像套件的屏蔽室外。 来自磁共振注射器系统的电源的电力（通过适当的电源连接）被传送到磁共振成像套件的屏蔽室和位于内部的磁共振注射器系统的部件（例如，动力头） 屏蔽的房间。 在传送该电力的同时，从电力连接发射的射频能量被过滤。

公开(公告)号：US20090039886A1

公开(公告)日：2009-02-12

申请号：US12152951

申请日：2008-05-19

Applicant: Keith D. White

Inventor： Keith D. White

IPC: G01R33/58 ,  A61B5/055

CPC classification number: G01R33/28 ,  G01R33/4806 ,  G01R33/543 ,  G01R33/56509 ,  G01V8/20

Abstract: The present invention discloses an apparatus and method to track the movement of a target. One embodiment tracks the movement of the patient during medical imaging scanning using optical technology. Optical systems record the position and movement of the target and provide inputs to a processor. The processor is capable of performing mathematical analysis of the movement of the target to determine the positional shift of the patient. Weighted averages, phase correlation, Fourier-Mellin algorithms, and cross-correlation of data related to X-Y translation are used to calculate movement of the target subject. Feedback related to the movement is provided to the medical imaging scanning machine which allows for adjustments in focusing coils for real time tracking of the patient's movements during the procedure. As a result, the medical image scanning procedure becomes more accurate as it is adjusted for the patient's movements.

Abstract translation: 本发明公开了一种跟踪目标移动的装置和方法。 一个实施例在使用光学技术的医学成像扫描期间跟踪患者的运动。 光学系统记录目标的位置和移动，并向处理器提供输入。 处理器能够对目标的移动进行数学分析，以确定患者的位置偏移。 使用加权平均，相位相关，傅立叶 - 梅林算法以及与X-Y平移相关的数据的互相关来计算目标受试者的运动。 与运动相关的反馈被提供给医学成像扫描机，其允许调整聚焦线圈以便在该过程期间实时跟踪患者的运动。 结果，随着病人运动的调整，医学图像扫描程序变得更加准确。

公开(公告)号：US20080312526A1

公开(公告)日：2008-12-18

申请号：US12195637

申请日：2008-08-21

Applicant: Daniel GAGNON ,  Michael A. MORICH ,  Douglas M. BLAKELEY ,  Robert L. ZAHN ,  Kevin M. NIEMAN

Inventor： Daniel GAGNON ,  Michael A. MORICH ,  Douglas M. BLAKELEY ,  Robert L. ZAHN ,  Kevin M. NIEMAN

IPC: A61B5/055

CPC classification number: G01R33/28 ,  G01R33/3875 ,  G01R33/421 ,  G01R33/422 ,  G01R33/481 ,  G01R33/4812

Abstract: A hybrid imaging system includes a magnetic resonance scanner and a second modality imaging system disposed in the same radio frequency isolation space. The second modality imaging system includes radiation detectors configured to detect at least one of high energy particles and high energy photons. In some embodiments a retractable radio frequency screen is selectively extendible into a gap between the magnetic resonance scanner and the second modality imaging system. In some embodiments shim coils are disposed with the magnetic resonance scanner and are configured to compensate for distortion of the static magnetic field of the magnetic resonance scanner produced by proximity of the second modality imaging system.

Abstract translation: 混合成像系统包括设置在相同射频隔离空间中的磁共振扫描器和第二模态成像系统。 第二模态成像系统包括被配置为检测高能量粒子和高能量光子中的至少一种的辐射检测器。 在一些实施例中，可伸缩射频屏选择性地可延伸到磁共振扫描仪和第二模态成像系统之间的间隙中。 在一些实施例中，衬垫线圈与磁共振扫描器一起设置并且被配置为补偿由第二模态成像系统靠近产生的磁共振扫描器的静态磁场的变形。

公开(公告)号：US20080172793A1

公开(公告)日：2008-07-24

申请号：US12008688

申请日：2008-01-11

Applicant: Klaus Gagneur ,  Volker Schmidt ,  Robert Wirth

Inventor： Klaus Gagneur ,  Volker Schmidt ,  Robert Wirth

IPC: A47C16/00

CPC classification number: G01R33/28 ,  A61B5/0555 ,  A61B5/411 ,  A61G13/124

Abstract: The invention relates to a holding device for supporting the hands of a patient resting on an examination couch. In accordance with the invention, the holding device for supporting the hands of a patient resting on an examination couch comprises gripping zones which are distanced from one another, said gripping zones each being grippable with a hand of the patient, with the holding device being moveable independently of further devices surrounding the patient.

Abstract translation: 本发明涉及一种用于支撑搁置在检查室上的患者的手的保持装置。 根据本发明，用于支撑搁置在检查台上的患者的手的保持装置包括彼此远离的夹持区域，所述夹持区域可以用患者的手抓住，保持装置可移动 独立于围绕患者的其它装置。

公开(公告)号：US20080122441A1

公开(公告)日：2008-05-29

申请号：US11729235

申请日：2007-03-28

Applicant: Hiroshi Hayakawa

Inventor： Hiroshi Hayakawa

IPC: G01R33/28

CPC classification number: G01R33/28 ,  G01R33/288

Abstract: A magnetic attraction preventive system includes an approach detection unit which generates an approach detection magnetic field and detects the approach of a magnetic material to a magnetic resonance imaging apparatus on the basis of a variation in the strength of the approach detection magnetic field, and a preventive unit which prevents magnetic attraction of the magnetic material to the magnetic resonance imaging apparatus when the approach detection unit detects the approach of the magnetic material to the magnetic resonance imaging apparatus.

Abstract translation: 磁吸引防止系统包括：接近检测单元，其生成接近检测磁场，并且基于接近检测磁场的强度的变化来检测磁性材料对磁共振成像设备的接近;以及预防性 单元，当接近检测单元检测到磁性材料到达磁共振成像设备的接近时，防止磁性材料对磁共振成像设备的磁吸引。