公开(公告)号：US09594131B2

公开(公告)日：2017-03-14

申请号：US13469370

申请日：2012-05-11

申请人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming (Patrick) P. Xie (Leiming)

发明人： Jarek Wosik ,  Krzysztof Nesteruk ,  Lei Ming (Patrick) P. Xie (Leiming)

IPC分类号： G01V3/00 ,  G01R33/34 ,  G01R33/341

CPC分类号： G01R33/34015 ,  G01R33/34007 ,  G01R33/3403 ,  G01R33/341

摘要： New method of cooling of MRI coil and resonators is disclosed and described. MRI coil designs showed in the disclosure are based solely on the use of copper tube elements filled with liquid nitrogen. Inside the conducting tubes at rf frequency there is no rf electric field, thus the liquid nitrogen presence inside such coils will not have any influence on MRI coil dielectric losses and on the resonant frequency modulation. Liquid nitrogen cooled coils, when in the coil noise regime, demonstrate 2-3 gain of signal-to-noise ratio comparing with room temperature equivalent coils. Methods for making and using both superconducting and normal metal MRI coils and/or arrays in such configurations are also disclosed.

摘要翻译： 公开并描述了MRI线圈和谐振器的新的冷却方法。 在本公开中显示的MRI线圈设计仅基于使用充满液氮的铜管元件。 在导频管的频率范围内没有射频电场，因此这种线圈内的液氮不会对MRI线圈介质损耗和谐振频率调制产生任何影响。 液体氮冷却线圈，当处于线圈噪声状态时，与室温等效线圈相比，显示出2-3的信噪比增益。 还公开了制造和使用这种配置中的超导和正常金属MRI线圈和/或阵列的方法。

公开(公告)号：US09591989B2

公开(公告)日：2017-03-14

申请号：US13450009

申请日：2012-04-18

申请人： Yuan-Chuan Tai

发明人： Yuan-Chuan Tai

IPC分类号： A61B5/05 ,  A61B5/055 ,  A61B5/00 ,  G01R33/48 ,  A61B6/04 ,  A61B6/00 ,  A61B6/03 ,  G01R33/34 ,  G01R33/341

CPC分类号： A61B6/4417 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  A61B6/0435 ,  A61B6/4258 ,  A61B6/4266 ,  A61B6/50 ,  A61B6/501 ,  A61B6/502 ,  A61B6/508 ,  A61B6/5235 ,  A61B2576/00 ,  G01R33/34053 ,  G01R33/341 ,  G01R33/481

摘要： Insert devices that include a RF surface coil and gamma-ray photon detector array for enhancing PET and MRI images produced from integrated PET-MRI scanners are disclosed. Integrated PET-MRI scanners that include such insert devices as well of methods for scanning an object by use of such devices are also disclosed.

摘要翻译： 公开了包括RF表面线圈和γ射线光子检测器阵列的装置，用于增强由PET-MRI扫描仪产生的PET和MRI图像。 还公开了包括这种插入装置的集成PET-MRI扫描仪以及通过使用这种装置来扫描物体的方法。

公开(公告)号：US20170020409A1

公开(公告)日：2017-01-26

申请号：US15216737

申请日：2016-07-22

申请人： Siemens Healthcare GmbH

发明人： Arne Hengerer ,  Eva Rothgang

IPC分类号： A61B5/055 ,  G01R33/28 ,  G01R33/341 ,  A61B90/00 ,  A61B5/00

摘要： A medical imaging apparatus is designed to acquire medical imaging data of a patient during a medical imaging examination and has a medical data acquisition scanner, which has a patient reception area at least partially enclosed by the scanner, inside of which a body area of a patient for examination is situated during the medical imaging examination. A positioning unit has a projector and at least one positioning surface situated inside the patient reception area. The projector is designed to project at least one item of anatomical information onto the at least one positioning surface inside the patient reception area.

摘要翻译： 医疗成像设备被设计成在医学成像检查期间获取患者的医学成像数据，并且具有医疗数据采集扫描器，其具有至少部分地由扫描器包围的患者接收区域，患者接收区域内部具有病人的身体区域 在医学影像检查期间进行检查。 定位单元具有投影仪和位于病人接收区域内的至少一个定位面。 投影仪被设计成将至少一项解剖信息投影到患者接收区域内的至少一个定位表面上。

公开(公告)号：US20170016969A1

公开(公告)日：2017-01-19

申请号：US15200522

申请日：2016-07-01

申请人： Ludwig Eberler ,  Volker Matschl ,  Jürgen Nistler

发明人： Ludwig Eberler ,  Volker Matschl ,  Jürgen Nistler

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01R33/341

摘要： The embodiments relate to a body coil, to a magnetic resonance device, and to a method for operating a magnetic resonance device. The body coil includes at least one antenna unit and at least one pre-amplification unit, wherein the pre-amplification unit is arranged at a feed point of the antenna unit, wherein the pre-amplification unit has an input reflection factor at the feed point of the antenna unit whose value is greater than 0.7.

摘要翻译： 实施例涉及体线圈，磁共振装置以及用于操作磁共振装置的方法。 身体线圈包括至少一个天线单元和至少一个预放大单元，其中预放大单元布置在天线单元的馈电点处，其中预放大单元在馈电点处具有输入反射系数 的值大于0.7的天线单元。

公开(公告)号：US20170003367A1

公开(公告)日：2017-01-05

申请号：US14754836

申请日：2015-06-30

申请人： General Electric Company

发明人： DASHEN CHU ,  ROBERT STEVEN STORMONT ,  SCOTT ALLEN LINDSAY ,  JAMES HIROSHI AKAO ,  ZHU LI ,  HAI ZHENG ,  XIAOXU LIU

IPC分类号： G01R33/561 ,  G01R33/341 ,  G01R33/36 ,  G01R33/34

CPC分类号： G01R33/34076 ,  G01R33/3415 ,  G01R33/365 ,  G01R33/5611

摘要： A method of parallel imaging for use with a magnetic resonance imaging apparatus includes producing a longitudinal magnetic field B0 throughout a target volume, producing a transverse magnetic field B1 that is generally perpendicular to B0 throughout the target volume, transmitting a plurality of RF pulses to the target volume, with a surface coil, acquiring first MRI data from a target within the target volume in response to the transmission of RF pulses, and with a body coil, acquiring second MRI data from the target within the target volume in response to the transmission of RF pulses, wherein acquisition of the first MRI data and the second MRI data occurs substantially simultaneously.

摘要翻译： 与磁共振成像装置一起使用的并行成像方法包括在整个目标体积上产生纵向磁场B0，产生在整个目标体积上大致垂直于B0的横向磁场B1，将多个RF脉冲发送到 目标体积，具有表面线圈，响应于RF脉冲的传输，以及身体线圈，从目标体积中的目标获取第一MRI数据，响应于传输，从目标体积中的目标获取第二MRI数据 的RF脉冲，其中所述第一MRI数据和所述第二MRI数据的获取基本上同时发生。

公开(公告)号：US20170003359A1

公开(公告)日：2017-01-05

申请号：US15125654

申请日：2015-03-13

申请人： THE GENERAL HOSPITAL CORPORATION

发明人： Matthew S. Rosen ,  Mathieu Sarracanie ,  Stanwix Paul

IPC分类号： G01R33/341 ,  G01R33/567 ,  G01R33/563 ,  G01R33/44

CPC分类号： G01R33/341 ,  G01R33/445 ,  G01R33/5635 ,  G01R33/5673

摘要： A system and method a for local coil system for performing a magnetic resonance imaging (MRI) process using an MRI system is provided. The local coil system includes a conductor extending in a spiral path along a single plane and forming a variable spiral extending from inner spirals proximate a center of the spiral path having a first density to outer spirals proximate a perimeter of the spiral path having a second density. The first density and the second density are different densities.

摘要翻译： 提供了一种用于使用MRI系统进行磁共振成像（MRI）处理的局部线圈系统的系统和方法a。 本地线圈系统包括沿着单个平面沿螺旋路径延伸的导体，并且形成可变螺旋线，该可变螺旋线从靠近具有第一密度的螺旋路径的中心的内部螺旋延伸到邻近螺旋路径的周边的外部螺旋，其具有第二密度 。 第一密度和第二密度是不同的密度。

公开(公告)号：US09519037B2

公开(公告)日：2016-12-13

申请号：US13674654

申请日：2012-11-12

申请人： Joel P. Felmlee

发明人： Joel P. Felmlee

IPC分类号： G01V3/00 ,  G01R33/34 ,  G01R33/341 ,  G01R33/3415

CPC分类号： G01R33/34092 ,  G01R33/34007 ,  G01R33/341 ,  G01R33/3415

摘要： A magnetic resonance imaging receiver coil provides for high SNR and high uniformity over a range of loading conditions with layers, or stacks, of independent conductive elements. The plurality of layers preload the receiver coil reducing the circuit variation as the subject coupling and loading varies. The preload is such that coil performance, or SNR, is maintained over a large range of impedance variation. This configuration is designed to exceed the performance of single trace coils over a range of impedance consistent with variations associated with different subjects, and may also incorporate coils of different resonance frequencies.

摘要翻译： 磁共振成像接收器线圈在具有独立导电元件的层或堆叠的一系列负载条件下提供高SNR和高均匀性。 当主体耦合和负载变化时，多个层预加载接收器线圈减小电路变化。 预加载使得线圈性能或SNR保持在较大的阻抗变化范围内。 该配置被设计为超过了与不同主题相关联的变化的阻抗范围内的单个迹线线圈的性能，并且还可以包括不同谐振频率的线圈。

公开(公告)号：US09498639B2

公开(公告)日：2016-11-22

申请号：US14276121

申请日：2014-05-13

申请人： PULSE, LLC

发明人： Gregory S. Anderson ,  Kade E. Huntsman ,  Dale C. Gledhill ,  Douglas R. Burrell

IPC分类号： A61N2/02 ,  A61N1/40 ,  G01R33/341 ,  A61N2/00

CPC分类号： A61N2/02 ,  A61N2/004

摘要： A PEMF web using immersive, flux-guided, micro-coils to direct intense, deeply penetrating, magnetic flux into a subject from each micro-coil capable of pointing in an arbitrary direction. Micro-coils are spooled around iron cores, insulated properly, and soldered to connecting wires, all embedded in a polymeric resin, such as cold-cured silicone resin. Nodes protect, enclose, insulate electrically, and otherwise protect the micro-coils. Connectors between nodes provide mechanical stability against breaking of wires, while permitting folding, bending, buckling, and otherwise deflecting to position the nodes as desired with three degrees of freedom.

摘要翻译： 使用沉浸式，磁通引导的微型线圈的PEMF网络，可以从能够指向任意方向的每个微型线圈向受试者引导强烈，深入的磁通量。 微型线圈缠绕在铁芯周围，绝缘绝缘，并焊接到所有嵌入聚合树脂（如冷固化硅树脂）的连接线。 节点保护，包围，电绝缘，否则保护微型线圈。 节点之间的连接器提供机械稳定性，防止电线断裂，同时允许折叠，弯曲，弯曲或以其他方式偏转，以根据需要以三个自由度定位节点。

公开(公告)号：US09341688B2

公开(公告)日：2016-05-17

申请号：US13675945

申请日：2012-11-13

申请人： Adam Albrecht

发明人： Adam Albrecht

IPC分类号： G01V3/00 ,  G01R33/341 ,  G01R3/00 ,  G01R33/36 ,  G01R33/385

CPC分类号： G01R33/341 ,  G01R3/00 ,  G01R33/3607 ,  G01R33/3614 ,  G01R33/3852 ,  Y10T29/49117

摘要： In a magnetic resonance tomography (MRT) system, a current strength of a coil current is controllable by a plurality of semiconductor power switches as a function of a control signal. The plurality of semiconductor power switches receive the control signal at respective control inputs from a control line. In each of at least two semiconductor power switches of the plurality of semiconductor power switches, a compensation resistance element is connected between the control input and the control line. Resistance values of the compensation resistance elements are different.

摘要翻译： 在磁共振断层摄影（MRT）系统中，作为控制信号的函数，线圈电流的电流强度可由多个半导体功率开关控制。 多个半导体功率开关在控制线的相应控制输入处接收控制信号。 在多个半导体功率开关的至少两个半导体功率开关中的每一个中，补偿电阻元件连接在控制输入和控制线之间。 补偿电阻元件的电阻值不同。

公开(公告)号：US09329146B2

公开(公告)日：2016-05-03

申请号：US13758859

申请日：2013-02-04

申请人： Texas A&M University System

发明人： Mark Everett ,  Alfonso Benavides Iglesias

IPC分类号： G01V3/15 ,  G01R33/341 ,  G01N27/02

CPC分类号： G01N27/025

摘要： A cooperative source electromagnetic induction (EMI) device includes: a transmitter configured to generate a time-varying primary magnetic field in the vicinity of a target object, which magnetic field inductively couples with the target object to generate a target object secondary magnetic field; and a cooperative source to which the primary magnetic field is also inductively coupled, generating one or more respective cooperative source secondary magnetic fields. The target object and the cooperative source are inductively coupled via the target object secondary magnetic field and the cooperative source secondary magnetic field. The device includes a receiver configured to measure a composite inductive response, which comprises the inductive coupling of the target object and the cooperative source. A data processor executes statistical classifier software to interpret a signature of the target object based upon the measured composite inductive response and identify the target object from the interpreted signature.

摘要翻译： 合作源电磁感应（EMI）装置包括：发射机，被配置为在目标物体附近产生时变的主磁场，该磁场与目标物体感应耦合以产生目标物体次级磁场; 以及主磁场也被感应耦合的协作源，产生一个或多个相应的协作源次级磁场。 目标物体和协同源通过目标物体二次磁场和协同源次级磁场感应耦合。 该装置包括被配置为测量复​​合感应响应的接收器，其包括目标对象和协作源的电感耦合。 数据处理器执行统计分类器软件，以基于所测量的复合归纳响应来解释目标对象的签名，并从解释的签名识别目标对象。