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1.发明申请Magnetic resonance imaging using direct, continuous real-time imaging for motion compensation 有权磁共振成像采用直接连续实时成像进行运动补偿公开(公告)号：US20050073305A1
公开(公告)日：2005-04-07
申请号：US10653282
申请日：2003-09-03
IPC分类号： G01R33/565 , G01R33/567 , G01V3/00
CPC分类号： G01R33/5676 , G01R33/56325
摘要： Magnetic resonance imaging (MRI) uses direct, continuous, unaliased, real-time imaging for motion compensation. Unaliased, real-time two dimensional (2D) images are acquired continuously of the anatomy of interest. The images are compared to at least one template to using a correlation coefficient technique to select images corresponding to minimal motion and distortion. A spatial grid of templates can be used to cover an anatomy of interest. Multiple temporal templates can be used to create a time series of magnetic resonance (MR) images. The selected images are used to provide a high-resolution image, preferably a three dimensional (3D) image.
摘要翻译： 磁共振成像（MRI）使用直接，连续，不间断的实时成像进行运动补偿。 不间断的实时二维（2D）图像被连续获取感兴趣的解剖结构。 将图像与至少一个模板进行比较，以使用相关系数技术来选择对应于最小运动和失真的图像。 模板的空间网格可以用于覆盖感兴趣的解剖结构。 可以使用多个时间模板来创建磁共振（MR）图像的时间序列。 所选择的图像用于提供高分辨率图像，优选三维（3D）图像。
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公开(公告)号：US06292683B1
公开(公告)日：2001-09-18
申请号：US09313910
申请日：1999-05-18
IPC分类号： A61B5055
CPC分类号： G06T3/0075 , A61B5/055
摘要： The present invention relates to magnetic resonance imaging (MRI) and includes a method and apparatus to track motion of anatomy or medical instruments, for example, between MR images. The invention includes acquiring a time series of MR images of a region of interest, where the region of interest contains the anatomy or structure that is prone to movement, and the MR images contain signal intensity variations. The invention includes identifying a local reference region in the region of interest of a reference image and acquired from the time series. The local reference region of the reference image is compared to that of the other MR images and a translational displacement is determined between the local reference region of the reference image and of another MR image. The translational displacement has signal intensity invariance and can accurately track anatomy motion or the movement of a medical instrument during an invasive procedure. The translational displacement can be used to align the images for automatic registration, such as in myocardial perfusion imaging, MR angiography, fMRI, or in any other procedure in which motion tracking is advantageous. Two implementations of the invention are disclosed, one in which a correlation coefficient is calculated and used to determine the translational displacement, and one in which the images are converted to a binary image by thresholding and after computation of a filtered cross-correlation, a signal peak is located and plotted as the translational displacement.
摘要翻译： 本发明涉及磁共振成像（MRI），并且包括用于跟踪例如在MR图像之间的解剖或医疗器械的运动的方法和装置。 本发明包括获取感兴趣区域的MR图像的时间序列，其中感兴趣区域包含易于移动的解剖结构或结构，并且MR图像包含信号强度变化。 本发明包括识别参考图像的感兴趣区域并从时间序列中获取的局部参考区域。 将参考图像的局部参考区域与其他MR图像的局部参考区域进行比较，并且在参考图像的局部参考区域和另一MR图像之间确定平移位移。 平移位移具有信号强度不变性，可以在侵入性过程中精确跟踪解剖运动或医疗器械的运动。 平移位移可以用于对准用于自动对准的图像，例如在心肌灌注成像，MR血管造影术，fMRI或其中运动跟踪是有利的任何其他过程中。 公开了本发明的两个实施例，其中计算相关系数并用于确定平移位移，并且其中图像通过阈值处理和在滤波的互相关的计算之后被转换成二进制图像，其中信号 峰位于并绘制为平移位移。
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公开(公告)号：US20060244445A1
公开(公告)日：2006-11-02
申请号：US11115308
申请日：2005-04-27
IPC分类号： G01V3/00
CPC分类号： G01R33/565 , G01R33/56391 , G01R33/5676
摘要： An MRI system and method for acquiring motion-compensated MR image data of an object. The MRI system includes an MRI device for generating a uniform magnetic field through the object, magnetic field gradients for imaging a portion of the object and an RF excitation field for evoking NMR response signals from the object; a computer for controlling the operation of the MRI system; a motion compensation module for generating a plurality of navigator waveforms for evoking a corresponding plurality of navigator echoes from the portion of the object while the object is being imaged, and processing the plurality of navigator echoes by determining a subset of similar navigator echoes and removing rigid-body translation from the NMR response signals associated with the subset of similar navigator echoes; and, interface circuitry for generating the magnetic gradient, RF and navigator waveforms and sampling the NMR response signals and the plurality of navigator echoes.
摘要翻译： 用于获取物体的运动补偿MR图像数据的MRI系统和方法。 MRI系统包括用于通过物体产生均匀磁场的MRI装置，用于对物体的一部分进行成像的磁场梯度和用于从物体引起NMR响应信号的RF激励场; 用于控制MRI系统的操作的计算机; 一种运动补偿模块，用于产生多个导航波形，用于在对象被成像时从对象的该部分引起相应的多个导航回波，以及通过确定类似的导航回波的子集并去除刚性来处理多个导航回波 从与类似导航回波的子集相关联的NMR响应信号中翻译; 以及用于产生磁梯度的接口电路，RF和导航波形以及对NMR响应信号和多个导航回波的采样。
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公开(公告)号：US09660336B2
公开(公告)日：2017-05-23
申请号：US14766262
申请日：2014-02-07
申请人： Kevan Anderson , General Leung , Garry Liu , Perry Radau , Graham Wright
发明人： Kevan Anderson , General Leung , Garry Liu , Perry Radau , Graham Wright
CPC分类号： H01Q1/50 , G01R33/283 , G01R33/36 , H01P3/06 , H01P3/12
摘要： Embodiments of the present disclosure provide devices, methods, and systems that support electrical connection, signal delivery, and/or communication between internal and external portions of a Faraday cage. In some embodiments, devices and methods are provided for transmitting electrical signals through a waveguide port of a Faraday cage. In some embodiments, aspects of the present disclosure are employed to adapt a magnetic resonance imaging system for communications between a scanner room and a control room.
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公开(公告)号：US20050004448A1
公开(公告)日：2005-01-06
申请号：US10613580
申请日：2003-07-02
申请人： David Gurr , Jean Brittain , Graham Wright
发明人： David Gurr , Jean Brittain , Graham Wright
CPC分类号： G01R33/54
摘要： A method for a medical examination is described. The method includes polar phase encoding to generate a plurality of signals forming datasets representative of an object, where the datasets form a grid in polar coordinates in a k-space.
摘要翻译： 描述了用于体格检查的方法。 该方法包括极性相位编码以产生形成表示对象的数据集的多个信号，其中数据集在k空间中形成极坐标中的网格。
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公开(公告)号：US10418699B2
公开(公告)日：2019-09-17
申请号：US15600660
申请日：2017-05-19
申请人： Kevan Anderson , General Leung , Garry Liu , Perry Radau , Graham Wright
发明人： Kevan Anderson , General Leung , Garry Liu , Perry Radau , Graham Wright
摘要： Embodiments of the present disclosure provide devices, methods, and systems that support electrical connection, signal delivery, and/or communication between internal and external portions of a Faraday cage. In some embodiments, devices and methods are provided for transmitting electrical signals through a waveguide port of a Faraday cage. In some embodiments, aspects of the present disclosure are employed to adapt a magnetic resonance imaging system for communications between a scanner room and a control room.
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7.发明授权System and method for measuring induced radio frequency current using phase contrast magnetic resonance imaging 有权使用相位对比磁共振成像测量感应射频电流的系统和方法公开(公告)号：US09268003B2
公开(公告)日：2016-02-23
申请号：US13766457
申请日：2013-02-13
CPC分类号： G01R33/48 , G01R33/288
摘要： A method for automatically measuring currents induced on conducting structures positioned in the bore of a magnetic resonance imaging (“MRI”) scanner using a single magnetic resonance image is provided. A conductive structure is positioned within the bore of the MRI scanner during imaging. When the MRI system is transmitting an RF field, a current is induced in the conductive structure. The current creates a magnetic field at the Larmor frequency, which couples to the RF magnetic field in the vicinity of the conductive structure. The modified magnetic field results in an artifact being generated in phase images. The artifact in the phase image is then analyzed to determine the current induced in the conductive structure.
摘要翻译： 提供一种用于使用单个磁共振图像自动测量在位于磁共振成像（“MRI”）扫描器的孔中的导电结构感应的电流的方法。 在成像期间，导电结构位于MRI扫描器的孔内。 当MRI系统发射RF场时，在导电结构中感应出电流。 电流以拉莫尔频率产生磁场，其耦合到导电结构附近的RF磁场。 改进的磁场导致在相位图像中产生伪影。 然后分析相图中的伪影以确定在导电结构中感应的电流。
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8.发明申请SYSTEM AND METHOD FOR MEASURING INDUCED RADIO FREQUENCY CURRENT USING PHASE CONTRAST MAGNETIC RESONANCE IMAGING 有权使用相位对比度磁共振成像测量感应无线电频率的系统和方法公开(公告)号：US20140225608A1
公开(公告)日：2014-08-14
申请号：US13766457
申请日：2013-02-13
IPC分类号： G01R33/48
CPC分类号： G01R33/48 , G01R33/288
摘要： A method for automatically measuring currents induced on conducting structures positioned in the bore of a magnetic resonance imaging (“MRI”) scanner using a single magnetic resonance image is provided. A conductive structure is positioned within the bore of the MRI scanner during imaging. When the MRI system is transmitting an RF field, a current is induced in the conductive structure. The current creates a magnetic field at the Larmor frequency, which couples to the RF magnetic field in the vicinity of the conductive structure. The modified magnetic field results in an artifact being generated in phase images. The artifact in the phase image is then analyzed to determine the current induced in the conductive structure.
摘要翻译： 提供一种用于使用单个磁共振图像自动测量在位于磁共振成像（“MRI”）扫描器的孔中的导电结构感应的电流的方法。 在成像期间，导电结构位于MRI扫描器的孔内。 当MRI系统发射RF场时，在导电结构中感应出电流。 电流以拉莫尔频率产生磁场，其耦合到导电结构附近的RF磁场。 改进的磁场导致在相位图像中产生伪影。 然后分析相图中的伪影以确定在导电结构中感应的电流。
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9.发明申请MAGNETIC RESONANCE-BASED METHOD AND SYSTEM FOR DETERMINATION OF OXYGEN SATURATION IN FLOWING BLOOD 审中-公开用于确定流动血液中氧气饱和度的基于磁共振的方法和系统公开(公告)号：US20130088227A1
公开(公告)日：2013-04-11
申请号：US13576676
申请日：2011-04-15
IPC分类号： G01R33/483 , G01R33/28
CPC分类号： G01R33/483 , A61B5/02007 , A61B5/0263 , A61B5/1128 , A61B5/14542 , A61B5/7257 , G01R33/28 , G01R33/50 , G01R33/56316 , G01R33/56509
摘要： A method and system for determination of oxygen saturation in blood flowing in a vessel using magnetic resonance (MR). An MR image sequence is acquired with different echo time (TE) encoding, and different Fourier velocity encoding (FVE). A Fourier transformation is applied along the velocity dimension to determine a velocity distribution of tissue signals in each voxel of the image sequence. Tissue signals indicative of moving tissues are separated from tissue signals indicative of static tissue, based on the velocity distribution. Oxygen saturation in blood may then be determined using only the tissue signals indicative of flowing blood.
摘要翻译： 用于使用磁共振（MR）测定在血管中流动的血液中的氧饱和度的方法和系统。 采用不同的回波时间（TE）编码和不同的傅里叶速度编码（FVE）获取MR图像序列。 沿着速度维度施加傅立叶变换以确定图像序列的每个体素中的组织信号的速度分布。 基于速度分布，指示移动组织的组织信号与指示静态组织的组织信号分离。 然后可以仅使用指示流动血液的组织信号来确定血液中的氧饱和度。
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公开(公告)号：US5934501A
公开(公告)日：1999-08-10
申请号：US987293
申请日：1997-12-09
申请人： Graham Wright , Sylvia Jodi Wright
发明人： Graham Wright , Sylvia Jodi Wright
CPC分类号： A47G19/2211 , B65D1/265 , B65D81/3216
摘要： A beverage container for use with a drinking cup for dividing the cup into at least two individual beverage containing cells, each of which forms a discrete beverage container separate from the other. The beverage container comprises a semi-cylindrical, vertically tapered device, sized and shaped for mating insertion into a conventional tapered drinking cup. The beverage container includes a side wall having a top rim forming an opening, and a bottom. The side wall includes a curved, vertically tapered first side wall portion and a generally planar, vertically tapered second side wall portion. An elongated flexible tab is connected on one end thereof along a curved portion of the beverage container rim and folds over the rim of the cup upon insertion. The tab includes indicia for identifying the particular type, flavor, or brand of beverage contained within the beverage container portion of the drinking cup. The present invention thus allows a consumer to enjoy more than one flavor of beverage from a single cup, or, alternatively, allows a consumer to share a drink with a companion in a sanitary manner while allowing the consumer and companion to each consume his or her beverage of choice.
摘要翻译： 一种用于饮杯的饮料容器，用于将杯子分成至少两个单独的饮料容器，每个饮料容器分别形成分开的饮料容器。 饮料容器包括半圆柱形的垂直锥形装置，其尺寸和形状适于插入到常规的锥形饮杯中。 饮料容器包括具有形成开口的顶部边缘和底部的侧壁。 侧壁包括弯曲的，垂直渐变的第一侧壁部分和大致平面的，垂直渐变的第二侧壁部分。 细长的柔性舌片沿着饮料容器边缘的弯曲部分在其一端连接，并且在插入时折叠在杯子的边缘上。 标签包括用于识别容纳在饮用杯的饮料容器部分内的饮料的特定类型，风味或品牌的标记。 因此，本发明允许消费者从单个杯中享受多于一种的饮料风味，或者，或者允许消费者以卫生方式与伴侣分享饮料，同时允许消费者和伴侣每人消费他或她 饮料的选择。
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