公开(公告)号：US20150015259A1

公开(公告)日：2015-01-15

申请号：US14380620

申请日：2013-02-22

Applicant: The Trustees of Columbia University in the City of New York

Inventor： Yunsuo Duan ,  Bradley S. Peterson ,  Feng Liu ,  Alayar Kangarlu

IPC: G01R33/36 ,  G01R33/48

CPC classification number: G01R33/36 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/365 ,  G01R33/48

Abstract: Arrangement, magnetic resonance imaging system and method can be provided, according to certain exemplary embodiments of the present disclosure. For example, a plurality of radio frequency (RF) coil elements can be utilized which can include at least one coil element that is coupled to and non-standard impedance matched with at least one preamplifier.

Abstract translation: 根据本公开的某些示例性实施例，可以提供布置，磁共振成像系统和方法。 例如，可以使用多个射频（RF）线圈元件，其可以包括耦合到至少一个线圈元件和与至少一个前置放大器匹配的非标准阻抗。

公开(公告)号：US08847072B2

公开(公告)日：2014-09-30

申请号：US12665947

申请日：2008-06-27

Applicant: Sascha Krueger ,  Bernd David ,  Oliver Lips ,  Steffen Weiss ,  Daniel Wirtz

Inventor： Sascha Krueger ,  Bernd David ,  Oliver Lips ,  Steffen Weiss ,  Daniel Wirtz

IPC: H02G3/00 ,  H01R4/00 ,  H02G3/06 ,  H02G15/08 ,  H01B7/00 ,  H01B11/02 ,  H01P1/10 ,  H01H1/20 ,  H01H1/36 ,  G01R33/28 ,  G01R33/36 ,  A61B19/00 ,  A61B18/00 ,  A61N1/08 ,  A61B18/14

CPC classification number: G01R33/36 ,  A61B18/14 ,  A61B2018/00178 ,  A61B2090/374 ,  A61N1/086 ,  G01R33/287 ,  G01R33/288 ,  G01R33/3664

Abstract: A transmission cable including a transmission line, at least two electrically conductive line segments separated by a non-conductive gap, a bridging unit including at least one electrically conductive bridge segment capable of bridging the non-conductive gap, and a switching unit arranged to move the bridging unit and/or the transmission line to electrically connect the two line segments by closing the non-conductive gap using the bridge segment or to electrically disconnect the two line segments by opening the non-conductive gap.

Abstract translation: 一种传输电缆，包括传输线，由非导电间隙分开的至少两个导电线段，包括能够桥接非导电间隙的至少一个导电桥接段的桥接单元和布置成移动 桥接单元和/或传输线，以通过使用桥接段闭合非导电间隙来电连接两个线段，或通过打开非导电间隙来电连接两个线段。

公开(公告)号：US20140285192A1

公开(公告)日：2014-09-25

申请号：US14210400

申请日：2014-03-13

Applicant: Millikelvin Technologies LLC

Inventor： Neil Kalechofsky

IPC: G01R33/561

CPC classification number: G01R33/561 ,  G01R33/36 ,  G01R33/56

Abstract: The present disclosure provides various methods and systems for performing magnetic resonance studies. In accordance with many embodiments, image or other information of interest is derived from super radiant pulses.

公开(公告)号：US20140218029A1

公开(公告)日：2014-08-07

申请号：US14190945

申请日：2014-02-26

Applicant: MILLIKELVIN TECHNOLOGIES LLC

Inventor： Neal KALECHOFSKY

IPC: G01R33/48

CPC classification number: G01R33/5601 ,  A61B5/0263 ,  A61B5/748 ,  A61B2576/00 ,  A61M2205/057 ,  G01R33/36 ,  G01R33/3607 ,  G01R33/46 ,  G01R33/465 ,  G01R33/48 ,  G01R33/56308 ,  G01R33/56366

Abstract: The present disclosure provides various methods and systems for performing magnetic resonance studies. In accordance with many embodiments, image or other information of interest is derived from super radiant pulses.

公开(公告)号：US08798715B2

公开(公告)日：2014-08-05

申请号：US12684950

申请日：2010-01-10

Applicant: Uri Rapoport

Inventor： Uri Rapoport

IPC: A61B5/05

CPC classification number: A61B5/0263 ,  A61B5/02007 ,  A61B5/029 ,  A61B5/055 ,  A61B5/411 ,  G01R33/36 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/48 ,  G01R33/5635

Abstract: A comparatively light and compact permanent magnet arrangement for an MRI apparatus has a pair of opposed permanent magnet arrays with a shimming system to adjust the uniformity and strength of a magnetic field in a central chamber of the apparatus. The MRI apparatus is used to examine the extremities of a patient to determine cardiovascular characteristics from an analysis of the blood flow through selected arteries in the extremity. The information collected can be used to calculate such characteristics as total cardiac output, blood flow, arterial wall thickness and elasticity and the presence of plaque.

Abstract translation: 用于MRI装置的比较轻且紧凑的永磁体装置具有一对相对的永磁体阵列，其具有用于调节装置的中心室中的磁场的均匀性和强度的匀场系统。 MRI装置用于通过从肢体中选定的动脉的血流分析来检查患者的四肢以确定心血管特征。 收集的信息可用于计算总心输出量，血流量，动脉壁厚度和弹性以及斑块的存在等特征。

公开(公告)号：US20140194731A1

公开(公告)日：2014-07-10

申请号：US14206050

申请日：2014-03-12

Applicant: ASPECT IMAGING LTD.

Inventor： Uri RAPOPORT

IPC: G01R33/563 ,  A61B5/029 ,  G01R33/3873

CPC classification number: A61B5/0263 ,  A61B5/02007 ,  A61B5/029 ,  A61B5/055 ,  A61B5/411 ,  G01R33/36 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/48 ,  G01R33/5635

Abstract: A comparatively light and compact permanent magnet arrangement for an MRI apparatus has a pair of opposed permanent magnet arrays with a shimming system to adjust the uniformity and strength of a magnetic field in a central chamber of the apparatus. The MRI apparatus is used to examine the extremities of a patient to determine cardiovascular characteristics from an analysis of the blood flow through selected arteries in the extremity. The information collected can be used to calculate such characteristics as total cardiac output, blood flow, arterial wall thickness and elasticity and the presence of plaque.

Abstract translation: 用于MRI装置的比较轻且紧凑的永磁体装置具有一对相对的永磁体阵列，其具有用于调节装置中心室中的磁场的均匀性和强度的匀场系统。 MRI装置用于通过从肢体中选定的动脉的血流分析来检查患者的四肢以确定心血管特征。 收集的信息可用于计算总心输出量，血流量，动脉壁厚度和弹性以及斑块的存在等特征。

公开(公告)号：US20140070812A1

公开(公告)日：2014-03-13

申请号：US14068361

申请日：2013-10-31

Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION ,  KABUSHIKI KAISHA TOSHIBA

Inventor： Motohisa YOKOI ,  Motohiro MIURA ,  Sho KAWAJIRI ,  Kazuyuki SOEJIMA ,  Haruki NAKAMURA ,  Naoki IMAMURA

IPC: G01R33/48 ,  A61B6/03

CPC classification number: G01R33/48 ,  A61B6/03 ,  A61B6/032 ,  A61B6/56 ,  G01R33/36

Abstract: In one embodiment, the image diagnosis apparatus (20) generates image data of an object by using external electric power, and includes a charge/discharge element (BA1, . . . BAn) and a charge/discharge control circuit (140, 152). The charge/discharge element is charged with the external electric power and supply a part of the consumed power of the image diagnosis apparatus by discharging. The charge/discharge control circuit controls charge and discharge of the charge/discharge element in such a manner that the charge/discharge element discharges in a period during which the consumed power is larger than a predetermined power amount and the charge/discharge element is charged in a period during which the consumed power is smaller than the predetermined power amount.

Abstract translation: 在一个实施例中，图像诊断装置（20）通过使用外部电力产生对象的图像数据，并且包括充电/放电元件（BA1，...，BAn）和充电/放电控制电路（140,152） 。 充电/放电元件被外部电力充电，并通过放电来提供图像诊断装置的消耗功率的一部分。 充放电控制电路以充电/放电元件在消耗功率大于预定电力量并且充电/放电元件充电的时段内放电的方式控制充电/放电元件的充电和放电 在消耗功率小于预定功率量的期间。

公开(公告)号：US20140035580A1

公开(公告)日：2014-02-06

申请号：US13958654

申请日：2013-08-05

Applicant: Ovidiu Andronesi ,  Bruce Rosen ,  Peter Caravan ,  Himanshu Bhat

Inventor： Ovidiu Andronesi ,  Bruce Rosen ,  Peter Caravan ,  Himanshu Bhat

IPC: G01R33/36

CPC classification number: G01R33/36 ,  A61B5/055 ,  G01R33/5602 ,  G01R33/5616 ,  G01R33/5617

Abstract: A system acquires MR imaging data of a portion of patient anatomy associated with proton spin lattice relaxation time in a rotating frame using an RF (Radio Frequency) signal generator configured to generate RF excitation pulses and a magnetic field gradient generator configured to generate anatomical volume select magnetic field gradients for phase encoding and readout RF data acquisition. The RF signal generator and the gradient generator are configured to provide a rotating frame preparation pulse sequence comprising at least one of, (a) a T1 spin lattice relaxation in a rotating frame (T1ρ) preparation pulse sequence of adiabatic pulses comprising modulated RF pulses and modulated magnetic field gradients for slice selection and (b) a T2 spin-spin relaxation in a rotating frame (T2ρ) preparation pulse sequence of adiabatic pulses comprising modulated RF pulses and modulated magnetic field gradients for slice selection

Abstract translation: 系统使用被配置为产生RF激励脉冲的RF（射频）信号发生器和被配置为产生解剖体积选择的磁场梯度发生器来获取在旋转帧中与质子自旋晶格弛豫时间相关联的患者解剖结构的一部分的MR成像数据 用于相位编码和读出RF数据采集的磁场梯度。 RF信号发生器和梯度发生器被配置为提供旋转帧准备脉冲序列，其包括以下中的至少一个：（a）包括调制的RF脉冲的绝热脉冲的旋转帧（T1rho）准备脉冲序列中的T1自旋晶格弛豫和 用于切片选择的调制磁场梯度和（b）旋转框架（T2rho）的准备脉冲序列中的T2自旋 - 自旋松弛包括调制的RF脉冲和用于切片选择的调制的磁场梯度的绝热脉冲序列

公开(公告)号：US08633033B2

公开(公告)日：2014-01-21

申请号：US13723696

申请日：2012-12-21

Applicant: The Regents of the University of California

Inventor： Boris Rubinsky ,  Cesar A. Gonzalez

IPC: G01N27/00 ,  G01N33/48 ,  G01R27/08 ,  G01R25/00 ,  A61B5/053

CPC classification number: A61B5/0537 ,  A61B5/02042 ,  A61B5/0205 ,  A61B5/05 ,  A61B5/053 ,  A61B5/4064 ,  A61B5/413 ,  A61B5/4244 ,  A61B5/443 ,  A61B5/4519 ,  A61B5/4869 ,  A61B5/4878 ,  A61B5/7225 ,  A61B5/7228 ,  A61B5/725 ,  A61B2562/143 ,  G01N27/026 ,  G01R33/34 ,  G01R33/36 ,  G01R33/4828 ,  G01R33/483

Abstract: A method and apparatus of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating current (or voltage) through a first of the induction coils (or antennae); measuring spectrum of alternating current (or voltage) produced in the second of the induction coils (or antennae); and comparing the phase shift between the spectrum of alternating currents (or voltages) in the first and second induction coils (or antennae), thereby determining the condition of the bulk tissue sample.

Abstract translation: 通过以下步骤确定体组织样本的状况的方法和装置：将体组织样本定位在一对感应线圈（或天线）之间; 通过感应线圈（或天线）中的第一个通过交流（或电压）的频谱; 测量第二个感应线圈（或天线）中产生的交流（或电压）的频谱; 以及比较第一和第二感应线圈（或天线）中的交流电流（或电压）的频谱之间的相移，由此确定本体组织样本的状况。

公开(公告)号：US08629729B2

公开(公告)日：2014-01-14

申请号：US13187724

申请日：2011-07-21

Applicant: Frank C. Hoppensteadt ,  Andrew D. Kent ,  Ferran Macià Bros

Inventor： Frank C. Hoppensteadt ,  Andrew D. Kent ,  Ferran Macià Bros

IPC: H03L7/26

CPC classification number: G01R33/1284 ,  B82Y25/00 ,  G01R33/06 ,  G01R33/093 ,  G01R33/36 ,  H03B9/10 ,  H03B15/006

Abstract: A nano-oscillator magnetic wave propagation system has a group of aggregated spin-torque nano-oscillators (ASTNOs), which share a magnetic propagation material. Each of the group of ASTNOs is disposed about an emanating point in the magnetic propagation material. During a non-wave propagation state of the nano-oscillator magnetic wave propagation system, the magnetic propagation material receives a polarizing magnetic field. During a wave propagation state of the nano-oscillator magnetic wave propagation system, each of the group of ASTNOs initiates spin waves through the magnetic propagation material, such that a portion of the spin waves initiated from each of the group of ASTNOs combine to produce an aggregation of spin waves emanating from the emanating point. The aggregation of spin waves may provide a sharper wave front than wave fronts of the individual spin waves initiated from each of the group of ASTNOs.

Abstract translation: 纳米振荡器磁波传播系统具有共享磁传播材料的一组聚集的自旋扭矩纳秒振荡器（ASTNO）。 ASTNO组中的每一个都围绕磁传播材料中的一个发射点设置。 在纳米振荡器磁波传播系统的非波传播状态下，磁传播材料接收偏振磁场。 在纳米振荡器磁波传播系统的波传播状态期间，所述一组ASTNO中的每一个通过磁传播材料引发自旋波，使得从所述一组ASTNO中的每一个引发的一部分自旋波组合以产生 从辐射点发出的自旋波的聚集。 自旋波的聚集可以提供比从ASTNO组中的每一个发起的单个旋转波的波前更尖锐的波前。