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    Patient electrical isolation system
    2.
    发明授权
    Patient electrical isolation system 失效
    病人电气隔离系统

    公开(公告)号：US5807253A

    公开(公告)日：1998-09-15

    申请号：US944631

    申请日：1997-10-06

    申请人： Charles Lucian Dumoulin ,  Kenneth William Rohling ,  Ronald Dean Watkins ,  Randy Otto John Giaquinto

    发明人： Charles Lucian Dumoulin ,  Kenneth William Rohling ,  Ronald Dean Watkins ,  Randy Otto John Giaquinto

    IPC分类号： G01B7/00 ,  A61B5/055 ,  A61B5/06 ,  A61M25/00 ,  A61B1/00

    CPC分类号： A61B5/06 ,  A61B5/055 ,  Y10S128/908

    摘要： A patient isolation device is used as a safety device to provide electrical insulation between medical electronic equipment and portions of the equipment which come in contact with the patient. In one implementation of the patient isolation device, an RF coil is incorporated in a catheter connected to medical electronic equipment which tracks the position of the catheter. Typically, there is also medical imaging electronics to provide internal images of the subject along with an indication of the location of the catheter. Typically, the signal from the RF coil is provided to a preamplifier to amplify the signal. The isolation device is placed between the RF coil and the preamplifier such that MR response signals may pass through to the preamplifiers but in the event of a short or electrical malfunction the line voltage will not pass backward into the RF coil causing damage to the patient.

    摘要翻译： 患者隔离装置用作安全装置，以在医疗电子设备与与患者接触的设备的部分之间提供电绝缘。 在患者隔离装置的一个实施方式中，将RF线圈并入连接到跟踪导管位置的医疗电子设备的导管中。 通常，还提供医疗成像电子装置以提供对象的内部图像以及导管位置的指示。 通常，来自RF线圈的信号被提供给前置放大器以放大信号。 隔离装置被放置在RF线圈和前置放大器之间，使得MR响应信号可以通过前置放大器，但是在短路或电气故障的情况下，线路电压将不会向后进入RF线圈，从而导致患者的损坏。

    Flexible lightweight attached phased-array (FLAP) receive coils
    4.
    发明授权
    Flexible lightweight attached phased-array (FLAP) receive coils 失效
    灵活的轻便连接相控阵（FLAP）接收线圈

    公开(公告)号：US6084411A

    公开(公告)日：2000-07-04

    申请号：US234054

    申请日：1999-01-19

    申请人： Randy Otto John Giaquinto ,  Charles Lucian Dumoulin

    发明人： Randy Otto John Giaquinto ,  Charles Lucian Dumoulin

    IPC分类号： G01R33/34 ,  G01R33/3415 ,  G01R33/36 ,  G01V3/00

    CPC分类号： G01R33/34084 ,  G01R33/3415 ,  G01R33/365

    摘要： One or more flexible magnetic Resonance (MR) receive coils are constructed of a flexible material and connected to a flexible base to produce a module. Each module has the coils overlapping by a predetermined amount to minimize coupling between the coils. The modules may be connected by attachment means placed at predefined locations to cause overlap of adjacent coils such that the coupling is minimized. Balanced-unbalanced ("baluns") may be used to couple each receive coil to its lead cable connecting it to the MR imaging electronics. The baluns effectively isolate the coils from the cables and each other to optimize signal-to-noise ratio of the received signal.

    摘要翻译： 一个或多个柔性磁共振（MR）接收线圈由柔性材料构成并连接到柔性基座以产生模块。 每个模块具有重叠预定量的线圈以最小化线圈之间的耦合。 模块可以通过放置在预定位置处的附接装置连接以引起相邻线圈的重叠，使得耦合被最小化。 平衡不平衡（“巴伦”）可用于将每个接收线圈与其连接到MR成像电子设备的引线连接。 不平衡变换器有效地将线圈与电缆隔离开来并优化接收信号的信噪比。

    System and method for interventional procedures using MRI
    6.
    发明授权
    System and method for interventional procedures using MRI 失效
    使用MRI进行介入手术的系统和方法

    公开(公告)号：US07725157B2

    公开(公告)日：2010-05-25

    申请号：US11383608

    申请日：2006-05-16

    申请人： Charles Lucian Dumoulin ,  Richard Philip Mallozzi ,  Robert David Darrow ,  Harvey Ellis Cline ,  Renee Ann Guhde

    发明人： Charles Lucian Dumoulin ,  Richard Philip Mallozzi ,  Robert David Darrow ,  Harvey Ellis Cline ,  Renee Ann Guhde

    IPC分类号： A61B5/05

    CPC分类号： A61B5/055 ,  A61B5/0402 ,  A61B5/042 ,  A61B5/06 ,  A61B5/743 ,  A61B6/503 ,  A61B6/504 ,  A61B8/0891 ,  A61B34/20 ,  A61B2034/2051 ,  A61B2090/364 ,  A61B2090/374 ,  G01R33/287

    摘要： An imaging and interventional system and methods are provided. The system comprises an imaging device for acquiring volumetric image data for an anatomical region of interest, a catheter for acquiring electrophysiological (EP) measurements of the anatomical region of interest, the catheter having at least one tracking coil for detecting signals indicative of a position of the catheter, and, a processor coupled to the catheter for receiving the EP measurements and signals indicative of the position of the catheter. The position of the catheter and EP measurements are combined and superimposed on a resultant image. The method comprises acquiring volumetric image data for an anatomical region of interest, acquiring position data for a catheter inserted in the region of interest, obtaining electrophysiological (EP) measurements for the region of interest and combining the image data, position data and EP measurements into a resultant image for use in the interventional procedure.

    摘要翻译： 提供了成像和介入系统和方法。 该系统包括用于获取感兴趣解剖区域的体积图像数据的成像装置，用于获取感兴趣解剖区域的电生理学（EP）测量值的导管，所述导管具有至少一个跟踪线圈，用于检测指示位置的信号 导管，以及耦合到导管的处理器，用于接收EP测量值和指示导管位置的信号。 将导管的位置和EP测量结合并叠加在合成的图像上。 该方法包括获取感兴趣的解剖区域的体积图像数据，获取插入在感兴趣区域中的导管的位置数据，获得感兴趣区域的电生理（EP）测量值，并将图像数据，位置数据和EP测量结合到 用于介入程序的结果图像。

    Method and system for extended volume imaging using MRI with parallel reception
    7.
    发明授权
    Method and system for extended volume imaging using MRI with parallel reception 有权
    使用具有并行接收的MRI进行扩展体积成像的方法和系统

    公开(公告)号：US07009396B2

    公开(公告)日：2006-03-07

    申请号：US10065036

    申请日：2002-09-12

    申请人： Yudong Zhu ,  Charles Lucian Dumoulin

    发明人： Yudong Zhu ,  Charles Lucian Dumoulin

    IPC分类号： G01V3/00 ,  A61B5/055

    CPC分类号： G01R33/5611 ,  G01R33/56375

    摘要： A method and apparatus for producing an image from an extended volume of interest within a subject using a Magnetic Resonance Imaging (MRI) system are provided. The method comprises translating the volume using a positioning device along an axis of the MRI system. A plurality of MR signals are detected from at least one radiofrequency (RF) coil array for a given field-of-view within the MRI system as the positioning device is translated. The plurality of MR signals are sent to a plurality of receivers wherein the receivers are each adapted to adjust their respective center frequencies at a rate commensurate with a rate of translation of the positioning device. A plurality of respective sub-images corresponding to the plurality MR signals for each of the plurality of receivers are combined to form a composite image of the volume of interest.

    摘要翻译： 提供了一种用于使用磁共振成像（MRI）系统从受试者内的扩展感兴趣体积产生图像的方法和装置。 该方法包括使用定位装置沿着MRI系统的轴平移体积。 当定位装置被平移时，从用于MRI系统内的给定视野的至少一个射频（RF）线圈阵列检测多个MR信号。 多个MR信号被发送到多个接收机，其中接收机各自适于以与定位设备的平移速率相称的速率调整它们各自的中心频率。 对应于多个接收机中的每一个的多个MR信号的多个相应子图像被组合以形成感兴趣体积的合成图像。

    Method and system for accelerated imaging using parallel MRI
    8.
    发明授权
    Method and system for accelerated imaging using parallel MRI 有权
    使用平行MRI加速成像的方法和系统

    公开(公告)号：US06876199B2

    公开(公告)日：2005-04-05

    申请号：US10452095

    申请日：2003-05-30

    申请人： Christopher Judson Hardy ,  Charles Lucian Dumoulin

    发明人： Christopher Judson Hardy ,  Charles Lucian Dumoulin

    IPC分类号： G01R33/34 ,  A61B5/055 ,  G01R33/3415 ,  G01R33/54 ,  G01R33/561 ,  G01V3/00

    CPC分类号： G01R33/3415 ,  G01R33/5611

    摘要： A method of and system for parallel imaging using a Magnetic Resonance Imaging (MRI) system is provided. The method comprises acquiring a plurality of magnetic resonance (MR) signals from a receiver coil array placed about a subject in the MRI system, where the receiver coil array has a plurality of receiver elements arranged in rows and, during application of a readout gradient in a frequency encoding direction, shifting receiver frequencies by a selectable amount for each row of the array in order to shift a limited field of view (FOV) in the frequency encoding direction.

    摘要翻译： 提供了一种使用磁共振成像（MRI）系统并行成像的方法和系统。 该方法包括从MRI系统中围绕被摄体放置的接收器线圈阵列获取多个磁共振（MR）信号，其中接收器线圈阵列具有排列成行的多个接收器元件，并且在读出梯度 频率编码方向，为了在频率编码方向上移动有限的视场（FOV），将接收机频率移动到阵列的每一行的可选择量。

    Method and system for tracking small coils using magnetic resonance
    9.
    发明授权
    Method and system for tracking small coils using magnetic resonance 失效
    使用磁共振跟踪小线圈的方法和系统

    公开(公告)号：US06687530B2

    公开(公告)日：2004-02-03

    申请号：US09683394

    申请日：2001-12-21

    申请人： Charles Lucian Dumoulin

    发明人： Charles Lucian Dumoulin

    IPC分类号： A61B5055

    CPC分类号： A61B5/055 ,  A61B5/06 ,  G01R33/285

    摘要： A method and system for tracking the location of a device within the field of view of a Magnetic Resonance Imaging (MRI) system are provided. The method comprises computing a centroid of signal intensity in a region centered about a location of maximum signal intensity, Lmax of acquired magnetic resonance (MR) signals corresponding to the device.

    摘要翻译： 提供了一种用于跟踪在磁共振成像（MRI）系统的视野内的设备的位置的方法和系统。 该方法包括在以最大信号强度的位置为中心的区域中计算信号强度的质心，所述区域与所述装置对应的获取的磁共振（MR）信号的Lmax。

    Method and system for extended volume imaging using MRI
    10.
    发明授权
    Method and system for extended volume imaging using MRI 有权
    使用MRI进行扩展体积成像的方法和系统

    公开(公告)号：US06584337B2

    公开(公告)日：2003-06-24

    申请号：US09683124

    申请日：2001-11-21

    申请人： Charles Lucian Dumoulin ,  Yudong Zhu

    发明人： Charles Lucian Dumoulin ,  Yudong Zhu

    IPC分类号： A61B5055

    CPC分类号： A61B5/055

    摘要： A method and apparatus for producing an image from an extended volume of interest using a Magnetic Resonance Imaging (MRI) system are provided. The apparatus comprises a magnet assembly, a gradient coil assembly, at least one radiofrequency coil, a positioning device for translating the volume using along an axis of the MRI system and a plurality of receivers. A plurality of MR signals are detected from the radiofrequency (RF) coil, as the positioning device is translated, and are sent to the plurality of receivers. Each of the receivers are configured to be adjusted in either phase or frequency in response to the positioning device being translated. A plurality of respective sub-images are computed corresponding to the plurality of MR signals for each of the receivers and for the given field-of-view (FOV) at each of the incremented positions. A composite image of the volume of interest is formed by combining the respective sub-images.

    摘要翻译： 提供了使用磁共振成像（MRI）系统从扩展的感兴趣体积生成图像的方法和装置。 该装置包括磁体组件，梯度线圈组件，至少一个射频线圈，用于使用沿着MRI系统的轴平移体积的定位装置和多个接收器。 当定位装置被转换时，从射频（RF）线圈检测多个MR信号，并将其发送到多个接收机。 每个接收器被配置为响应于被平移的定位装置在任一阶段或频率中进行调整。 对应于每个接收机的多个MR信号以及在每个递增位置处的给定视场（FOV），对多个相应的子图像进行计算。 通过组合各个子图像来形成感兴趣体积的合成图像。