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1.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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2.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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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：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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5.发明申请公开(公告)号：US20170256853A1
公开(公告)日：2017-09-07
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
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：US08909322B2
公开(公告)日：2014-12-09
申请号：US12557840
申请日：2009-09-11
申请人： Kevan Anderson , Graham Wright
发明人： Kevan Anderson , Graham Wright
CPC分类号： A61M25/01 , A61M25/0127 , A61M2025/0166 , A61M2205/3515 , G01R33/287 , G01R33/288 , G01R33/34084
摘要： A catheter for magnetic resonance (MR) guided procedures comprising: a catheter body having a lumen for accommodating an intravascular device; a magnetic coupling component in the catheter body, the magnetic coupling component being designed to magnetically couple with a conductive length on the intravascular device, the magnetic coupling resulting in a signal; the catheter having a connection to deliver the signal to a processor.
摘要翻译： 一种用于磁共振（MR）引导程序的导管，包括：导管体，其具有用于容纳血管内装置的内腔; 导管主体中的磁耦合部件，所述磁耦合部件设计成与血管内装置上的导电长度磁耦合，所述磁耦合产生信号; 导管具有将信号传送到处理器的连接。
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公开(公告)号：US20050245814A1
公开(公告)日：2005-11-03
申请号：US11115416
申请日：2005-04-27
申请人： Kevan Anderson , Graham Wright
发明人： Kevan Anderson , Graham Wright
IPC分类号： A61B5/05 , A61B5/055 , A61B5/06 , A61M25/095 , G01R33/28
CPC分类号： A61B5/06 , A61B2034/2051 , G01R33/287
摘要： The present invention discloses a method for determining the position and/or orientation of a catheter or other interventional access device or surgical probe using phase patterns in a magnetic resonance (MR) signal. In the method of the invention, global two-dimensional correlations are used to identify the phase pattern and orientation of individual microcoils, which is unique for each microcoil's position and orientation. In a preferred embodiment of the invention, tracking of interventional devices is performed by one integrated phase image projected onto the axial plane and a second image in an oblique plane through the center of the coil and normal to the coil plane. In another preferred embodiment, the position and orientation of a catheter tip can be reliably tracked using low resolution MR scans clinically useful for real-time interventional MRI applications. In a further preferred embodiment, the invention provides real-time computer control to track the position of endovascular access devices and interventional treatment systems, including surgical tools and tissue manipulators, devices for in vivo delivery of drugs, angioplasty devices, biopsy and sampling devices, devices for delivery of RF, thermal, microwave or laser energy or ionizing radiation, and internal illumination and imaging devices, such as catheters, endoscopes, laparoscopes, and related instruments.
摘要翻译： 本发明公开了一种使用磁共振（MR）信号中的相位图来确定导管或其他介入入口装置或手术探针的位置和/或取向的方法。 在本发明的方法中，使用全局二维相关来识别各个微线圈的相位图案和取向，其对于每个微音圈的位置和取向是唯一的。 在本发明的一个优选实施例中，介入装置的跟踪由投射到轴平面上的一个集成相位图像和穿过线圈中心并垂直于线圈平面的倾斜平面中的第二图像执行。 在另一个优选实施例中，可以使用临床上用于实时介入MRI应用的低分辨率MR扫描来可靠地跟踪导管尖端的位置和取向。 在另一优选实施例中，本发明提供实时计算机控制以跟踪血管内进入装置和介入治疗系统的位置，包括手术工具和组织操纵器，用于体内递送药物的装置，血管成形术装置，活组织检查和取样装置， 用于传送RF，热，微波或激光能量或电离辐射的装置，以及内部照明和成像装置，例如导管，内窥镜，腹腔镜和相关器械。
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8.发明申请公开(公告)号：US20200014102A1
公开(公告)日：2020-01-09
申请号：US16571583
申请日：2019-09-16
申请人： Kevan Anderson , Garry Liu
发明人： Kevan Anderson , Garry Liu
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：US10727578B2
公开(公告)日：2020-07-28
申请号：US16571583
申请日：2019-09-16
申请人： Kevan Anderson , Garry Liu
发明人： Kevan Anderson , Garry Liu
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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